CONSTRUCTION                                                                              

Basic UPS Topology            On-Line              On-Line                            



Inverter               Provides 100% load    Provides 100% load                       
                       power 100% of time    power 100% of time                       

Converter              Provides 100% load    Provides 100% load                       
                       power to inverter     power to inverter                        

Bypass Switch          Solid State Static    Dynamic (Relay)      Exide will drop     
                       Switch transfers      Switch transfers     sensitive loads     
                       output between        output between       during transfers    
                       inverter and input    inverter and input   because of power    
                       utility                                    interruption by     
                                                                  the relay           

Isolation Circuits     5 kHz low pass        Transformer          EPC has increased   
                       filter                                     efficiency and      
                                                                  smaller transients  
                                                                  with smaller,       
                                                                  lighter, and less   
                                                                  expensive hardware  

Internal Batteries     Included              2-module battery                         
                                             pack                                     


OUTPUT  ELECTRICAL RATINGS                                                            



Rated power, kVA       6.25 @ 250 V          6.0                                      

Rated power, kW        4                     4                                        

Phase rated current,   25                    50 @120 V, 28.8 @                        
A, rms                                       208 V, 25 @ 240 V                        



Phase rated current,   75                    No reference                             
A peak                                                                                

Neutral rated          33, for 2-phase       Not applicable       EPC can provide     
current, A             output                                     full power on       
                                                                  2-phase output      

Nominal voltages, V    Single Phase: 200;    Single phase 208;    EPC has universal,  
                       208; 220; 230; 240;   220; 230; 240 only   worldwide output    
                       250;                  without PowerPass;   voltages            
                       Dual Phase: 100/200;  and 120/208 and                          
                       120/208; 120/240      120/240 with                             
                                             PowerPass module                         
                                             and transformer                          
                                             taps at 120                              



Number of phases       1 or 2                1                    EPC has universal,  
                                                                  worldwide output    
                                                                  phase               
                                                                  configurations      

Allowed phase          120; 180; 240         Not applicable                           
displacements,                                                                        
degrees                                                                               

Nominal frequencies,   50 or 60              50 or 60                                 
Hz                                                                                    


INPUT  FOR  ELECTRIC  UTILITY                                                         



Nominal voltages, V    Single Phase: 200;    Single Phase: 200,   EPC can be powered  
                       208; 220; 230; 240;   208, 220, 230, 240   from                
                       250;                                       100/200-120/208 or  
                       Dual Phase: 100/200;                       240 V electrical    
                       120/208; 120/240                           services. Does not  
                       Same as on the                             need an extra       
                       output                                     transformer in the  
                                                                  external            
                                                                  maintenance bypass  
                                                                  circuit             

Number of phases       1 or 2, same as       1                    EPC in a 2-phase    
                       output                                     circuit can draw    
                                                                  more power from     
                                                                  the same rated      
                                                                  input service       

Allowed phase          120; 180; 240         Not applicable                           
displacements,                                                                        
degrees                                                                               

Maximum nominal phase  20                    No reference         EPC does not need   
current, A rms                                                    a higher current    
                                                                  rated electrical    
                                                                  service             

Maximum nominal        20                    Not applicable       EPC does not        
neutral current, A                                                require an          
rms                                                               oversized neutral   
                                                                  conductor           

Overcurrent            25                    No reference                             
protection rating, A                                                                  

Frequency range, Hz    45 - 66               45-65                                    


POWER  CONDITIONING  PERFORMANCE: Voltages between power carrying                                                 
conductors                                                                                                        



OVER and UNDER VOLTAGES                                                               



Input voltage range    100 - 275 V           160 - 276 V          EPC can operate at  
                                                                  the extreme of low  
                                                                  voltages required   
                                                                  for worldwide       
                                                                  compatibility       

Output voltage         +/- 0.3%              +/-3%                EPC controls to a   
regulation                                                        finer tolerance     
                                                                  using Digital       
                                                                  Signal Processors   
                                                                  (DSPs)              



FREQUENCY DISTURBANCES                                                                



Input frequency range  +/- 5 to 6 Hz         +/- 5Hz                                  

Output frequency       Selectable from +/-1  Fixed at +/- 0.1 Hz  EPC is compatible   
range                  to 3 Hz                                    with low power      
                                                                  backup generators   

Output                 1 Hz/sec standard,    1 Hz/sec                                 
synchronization speed  programmable                                                   
(slew rate)                                                                           



ELECTRICAL NOISE IMMUNITY                                                             



For Input noise        10 VRMS               No reference                             
amplitude and                                                                         

Input noise frequency  5 kHz - 30 MHz        No reference                             
range                                                                                 



Output noise           0.5 VRMS              No reference         EPC meets Hewlett   
amplitude                                                         Packard computer    
                                                                  specifications      

In any UPS the attenuation is limited to less than 15 dB between input and output                                                
unshielded power cords in frequency range 450 kHz - 30 MHz                                                                       

                                                                                      
                                                                                      

ELECTRICAL  SURGE  IMMUNITY                                                           



Input 0.5 us-100 kHz   Output voltage        No reference                             
Ring Wave with         change less than 1%                                            
amplitude 6 kV, 0.5    of nominal                                                     
kA capacity                                                                           

Input 1.2/50 us-8/20   Output voltage        No reference                             
us Combination Wave    change less than 1%                                            
with amplitude 6 kV    of nominal                                                     
and 3 kA capacity,                                                                    
any polarity                                                                          

Input 5/50 ns Fast     Output voltage        No reference                             
Transient Burst with   change less than 1%                                            
peak voltage of 4 kV,  of nominal                                                     
any polarity                                                                          

Input 10/1000 us Wave  Output voltage        No reference                             
with amplitude 780 V   change less than 1%                                            
and 3 kA capacity,     of nominal                                                     
any polarity                                                                          

Input 5 kHz Ring Wave  Output voltage        No reference                             
with amplitude 950 V   change less than 1%                                            
and 2 kA capacity      of nominal                                                     



ELECTROSTATIC  DISCHARGE  IMMUNITY                                                                 



Input test voltage 15  Output voltage        No reference                             
kV per IEC 801-2       change less than 1%                                            
                       of nominal                                                     



ELECTROMAGNETIC FIELD  IMMUNITY                                                       



Field strength 10V/m   Output voltage        No reference                             
per IEC 1000-4-3       change less than 1%                                            
                       of nominal                                                     


ELECTRICAL  ISOLATION  PERFORMANCE:  Voltages  between  power  carrying                                                        
conductors  and  ground                                                                                                        



ELECTRICAL  NOISE  IMMUNITY                                                           





For Input noise        10 VRMS               No reference                             
amplitude and                                                                         

Input noise frequency  5 kHz - 30 MHz        No reference                             
range                                                                                 



Output noise           0.5 VRMS              No reference         EPC meets Hewlett   
amplitude                                                         Packard computer    
                                                                  specifications      

In any UPS the attenuation is limited to less than 15 dB between input and output                                                
unshielded power cords in frequency range 450 kHz - 30 MHz                                                                       



ELECTRICAL  SURGE  IMMUNITY: Neutral conductor is grounded at the service                                                       
entrance (USA, Canada, etc.)                                                                                                    



Input 0.5 us-100 kHz   Output voltage        No reference                             
Ring Wave with         change less than 1%                                            
amplitude 3 kV, 0.1    of nominal                                                     
kA capacity                                                                           



ELECTRICAL  SURGE  IMMUNITY:  Neutral conductor is NOT grounded at the service                                                   
entrance                                                                                                                         



Input 0.5 us-100 kHz   Output voltage        No reference                             
Ring Wave with         change less than 1%                                            
amplitude 3 kV, 0.5    of nominal                                                     
kA capacity                                                                           

Input 1.2/50 us-8/20   Output voltage        No reference                             
us Combination Wave    change 30 V peak,                                              
with amplitude 6 kV    0.6 V/usec                                                     
and 3 kA capacity at                                                                  
270 degrees                                                                           


BATTERY  BACKUP  PERFORMANCE                                                          



Transient output       Output voltage        No reference                             
voltage amplitude      change less than 1%                                            
during transfer from   of nominal                                                     
input AC source to                                                                    
the battery, AC to                                                                    
DC, %                                                                                 

Duration of output     None                  No reference                             
voltage transient, AC                                                                 
to DC, in                                                                             
milliseconds                                                                          

Transient output       Output voltage        No reference                             
voltage amplitude      change less than 1%                                            
during transfer from   of nominal                                                     
the battery to the                                                                    
input source, DC to                                                                   
AC, %                                                                                 

Duration of output     None                  No reference                             
voltage transient, DC                                                                 
to AC, in                                                                             
milliseconds                                                                          

Internal battery       7                     7                    Under the same      
reserve time at full                                              conditions          
load, min                                                                             

Internal battery       15 - 30               No reference         Under the same      
reserve time at half                                              conditions          
load, min                                                                             

Number of optional     2                     1                    EPC provides        
battery sets                                                      extended backup     
                                                                  times for long      
                                                                  power failures      

Connector for a user   Standard              Optional                                 
supplied battery                                                                      

Recharge time for an   2 hrs to 100%         6 hrs to 90%         EPC's fast          
internal battery to                                               recharge makes      
nominal reserve time,                                             available backup    
hours                                                             for multiple power  
                                                                  failures in short   
                                                                  time frames         

Recharge time to       2.5 hrs. to 100%      Not available        EPC does not        
nominal reserve time                                              require a separate  
for optional battery                                              charger             
sets, hours                                                                           

Maximum recharge       5                     No reference         High current makes  
current for user                                                  recharge faster     
battery, A                                                                            

Float voltage          None                  No reference         Absence of float    
                                                                  voltage extends     
                                                                  battery life by     
                                                                  1-2 years           


LOAD  INTERACTION  PERFORMANCE                                                           



LOADS                              Linear load power                               
factor range:                                                       



Capacitive-Resistive   From -0 to 1          No reference         EPC does not need   
                                                                  derating for        
                                                                  capacitive loads    



Inductive-Resistive    From +0 to 1          No reference         EPC does not need   
                                                                  derating for        
                                                                  inductive loads     

Non-linear load crest  ANY                   3                                        
factor                                                                                



PERFORMANCE                                                                      





Output voltage total   5                     Not published, but   EPC does not need   
harmonic distortion                          large                derating for        
(THD) at 100%                                                     non-linear loads    
non-linear load with                                                                  
Crest Factor 3, %                                                                     

Output voltage THD at  3                     3                                        
100% linear load, %                                                                   

Peak voltage           2                     No reference                             
regulation for 100%                                                                   
non-linear loads, %                                                                   

Transient voltage      +/- 5 %               +/- 5 %              Under the same      
amplitude under 100%                                              conditions as       
load change                                                       Exide's             

Settling time of       10 msec               No reference                             
voltage transient                                                                     
under 100% load                                                                       
change                                                                                

Overload handling      Solid State Static    Relay                Exide will drop     
circuit                Bypass Switch                              sensitive loads     
                                                                  during transfers    
                                                                  because of power    
                                                                  interruption by     
                                                                  the relay           



Overload capacity      Limited only by the   125% for 10 min,     EPC has the         
                       input circuit         150% for one cycle   highest possible    
                       breaker in the                             overload            
                       electric power line                        capability          

Transfer time from     Less than 1 millisec  Over 4 millisec      Exide's UPS has     the inverter to the                                               the same transfer   
input AC source                                                   time as Standby     
                                                                  UPS (SPS)           

Transfer time from     Less than 1 millisec  Over 4 millisec      Exide's UPS has     
the input AC source                                               the same transfer   
to the inverter                                                   time as Standby     
                                                                  UPS (SPS)           

Laser printer on/off   On inverter, without  Transfers to bypass  Exide is            
handling method        using Static Bypass   line                 underrated          
                       Switch                                                         

Default power          To the input power    No reference         Output voltage      
connection of the      line by normally                           Mean Time Between   
load                   closed contacts                            Failures is over    
                                                                  100 years           


INPUT  UTILITY  LINE  INTERACTION   PERFORMANCE                                                               



Input current THD at   5                     No reference                             
full load, %                                                                          

Input power factor     Over 0.99             0.90 typical at      Exide has very      
                                             full load and        large input         
                                             nominal input        current THD, like   
                                             voltage              30%                 



Startup inrush         25 % of nominal       No reference         EPC does not need   
current                                                           oversized           
                                                                  electrical service  


INSTALLATION  PARAMETERS                                                              



HxWxD in inches (mm)   28 (711) x 8.25       33.6 (854) x 9.9     Space saving        
                       (210) x 24 (610)      (252) x 15.8 (400)                       

Weight in lbs (Kg)     225 (102)             203 (92)                                 

Operating temperature  0 - 40                +10 - 40                                 
range, Cº                                                                             

Maximum operating      95%, non-condensing   5-95 %,                                  
humidity                                     non-condensing                           

Maximum altitude       10,000 (3,000)        No reference                             
without derating, ft                                                                  
(m)                                                                                   



Efficiency at full     92                    86                   EPC provides lower  
load, %                                                           load on air         
                                                                  conditioning,       
                                                                  lower operating     
                                                                  cost                



Heat generation at     1,250 (365)           No reference                             
full load, BTU/h                                                                      
(Watts)                                                                               

Cooling method         Forced air            Forced air                               

Audible noise under    55                    50                                       
full load, at 1m                                                                      
distance, dB                                                                          

Location of input      On the FRONT          On the BACK          EPC products are    
power ON/OFF control                                              convenient to       
                                                                  operate             

Input connections      Field wiring          Detachable 6 ft.                         
                       terminals             line cord with                           


                                             region-specific                          
                                             plugs or field                           
                                             wiring terminals                         

Output connections     Field wiring          Field wiring                             
                       terminals             terminals or                             
                                             various                                  
                                             distribution                             
                                             options                                  

External battery       6-pin AMP connector   No reference                             
connections                                                                           

Grounding              Single grounding      No reference                             
requirements           conductor                                                      



Maintenance bypass     External two pole     Not specified        Exide's UPS         
switch requirements    make-before-break                          requires            
                       switch between two                         additional          
                       pairs of input and                         isolation           
                       output phase                               transformer for     
                       conductors                                 120 V output        
                                                                  circuits to use an  
                                                                  external            
                                                                  maintenance bypass  
                                                                  switch              

Remote Emergency       Normally open         No reference         EPC's low voltage   
Power Off Switch       contact for 12 V, 10                       with reference to   
                       ma signal from UPS,                        ground provides     
                       referenced to ground                       for low cost        
                                                                  wiring              


                                                                                      

DISPLAY                Multifunctional       LED arrays           EPC provides        
                       backlit LCD display,                       convenience         
                       remaining time to                                              
                       shutdown                                                       



LOAD  COMPUTER  INTERFACES                                                             



Interface connectors   One DB-9 with full    One DB-9 for         EPC has simplicity  
                       duplex RS-232         contact closure and                      
                       communications and    another DB-9 for                         
                       contact closure       RS-232                                   
                       capabilities                                                   

Compatibility          All software and      None, uses           EPC allows use of   
                       hardware products     proprietary Exide's  the most            
                       compatible with       software             comprehensive line  
                       Systems Enhancement                        of interface        
                       Corporation                                products for LANs   
                       standards                                                      

RS-232 protocol        Compatible with       Custom MIB           EPC uses the        
                       draft UPS Management                       largest MIB         
                       Information Base                           available           
                       (MIB) per RFC 1628                                             
                       by SNMP Research,                                              
                       Inc.                                                           


REGULATORY  COMPLIANCE                                                                      



SAFETY                                                                        



USA UL 1778,           Certified by UL       Certified by UL                          
Uninterruptible Power                                                                 
Supply Equipment                                                                      

CANADA CAN/CSA-C22.2   Certified by UL       Certified by UL                          
No. 107.1-M91                                                                         
Commercial and                                                                        
Industrial Power                                                                      
Supplies                                                                              

International CEI/IEC  Certified by UL, CB   No                                       
950, Safety of         report available                                               
Information                                                                           
Technology Equipment,                                                                 
Including Electrical                                                                  
Business Equipment                                                                    

CENELEC European       Certified by UL, CB   No                                       
Standard EN 50 091-1,  report available                                               
Uninterruptible Power                                                                 
Systems, Part 1,                                                                      
General and Safety                                                                    
Requirements                                                                          



PERFORMANCE  STANDARDS                                                                 



International IEC      Certified by UL, CB   No                                       
146-4, Semiconductor   report available                                               
Converters                                                                            

CENELEC European       Certified by UL, CB   No                                       
Standard EN 50         report available                                               
091-3-1,                                                                              
Uninterruptible Power                                                                 


Systems, Part 3-1,                                                                    
General Performance                                                                   
Requirements                                                                          

International IEC 555  Certified by UL       No                                       
and European Standard                                                                 
EN 60 555 -2,                                                                         
Disturbances in                                                                       
Supply Systems Caused                                                                 
by Household                                                                          
Appliances and                                                                        
Similar Equipment,                                                                    
Part 2: Harmonics                                                                     



ELECTROMAGNETIC  COMPATIBILITY  STANDARDS                                                    



USA FCC, Part 15,      Certified by UL       Certified                                
Subpart J, Class A                                                                    

American National      Certified by UL       Not independently                        
Standard IEEE                                certified                                
C62.41-1991 (option                                                                   
under UL 1449 -                                                                       
Transient Voltage                                                                     
Surge Suppressers)                                                                    
IEEE Recommended                                                                      
Practice on Surge                                                                     
Voltages in                                                                           
Low-Voltage AC Power                                                                  
Circuits                                                                              

CENELEC European       Certified by UL       No                                       
Standard EN 50 091-2,                                                                 
Uninterruptible Power                                                                 
Systems, Part 2, EMC                                                                  
Requirements                                                                          

International IEC      Certified by UL that  No                                       
801-2,                 under the most                                                 
Electromagnetic        severe specified                                               
Compatibility for      Level 4 condition,                                             
Industrial-Process     NORMAL performance                                             
Measurement and        occurs within the                                              
Control Equipment.     specification limits                                           
Part 2: Electrostatic                                                                 
Discharge                                                                             
Requirements                                                                          

International CEI /    Certified by UL that  No                                       
IEC 1000-4-3 (former   under the most                                                 

IEC 801-3), and EN     severe specified                                               
50140,                 Level 3 condition,                                             
Electromagnetic        NORMAL performance                                             
Compatibility; Basic   occurs within the                                              
Immunity Standard;     specification limits                                           
Radiated,                                                                             
Radio-Frequency                                                                       
Electromagnetic                                                                       
Field; Immunity Test                                                                  

International CEI /    Certified by UL that  No                                       
IEC 801-4,             under the most                                                 
Electromagnetic        severe specified                                               
Compatibility for      Level 4 condition,                                             
Industrial-Process     NORMAL performance                                             
Measurement and        occurs within the                                              
Control Equipment.     specification limits                                           
Part 4: Electrical                                                                    
Fast Transient /                                                                      
Burst Requirements                                                                    

International IEC      Certified by UL that  No                                       
801-5 (and CEI),       under the most                                                 
Electromagnetic        severe specified                                               
Compatibility for      Level 4 condition,                                             
Industrial-Process     NORMAL performance                                             
Measurement and        occurs within the                                              
Control Equipment.     specification limits                                           
Part 5: Surge                                                                         
Immunity Requirements                                                                 


Sources: Exide's specifications and EPC's tentative specifications for 2.5 to 15 kVA DSP UPS products