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Tower Model Specifications
 
GENERAL  
Rated Capacity: 425VA, 525 VA, 625 VA, 800VA, 1000 VA, 1200 VA, 1500VA, 2200VA
Technology: Line-interactive topology with simulated sinewave output on battery

INPUT  
Phase: Single phase plus ground
nput Voltages: 110V, 115V, 120V or 220V, 230V, 240V
Input Voltage Range: ± 25%
Frequency: 50 / 60 Hz Auto sensing
AC Frequency range: 45 - 65 Hz
nput Current (120V): 425-3.5A, 525-4.4A, 625-5.2A, 800-6.7A, 1000-8.3A, 1200-10A, 1500-12.5A, 2200-18.3A
Input Current (230V): 425-1.8A, 525-2.3A, 625-2.7A, 800-3.5A, 1000-4.3A, 1200-5.2A, 1500-6.5A, 2200-9.6A
Input Protection: Fuse or circuit breaker for overload and short circuit (model dependent)
DC Bus Voltage: 425VA ~ 625VA - 12V, 800VA ~ 1500VA - 24V, 2200VA - 48V

OUPUT  
Output Voltage: 110V, 115V, 120V or 220V, 230V, 240V
Voltage regulation: ± 5% (425VA - 2200VA)
Power Factor : 0.6
Frequency regulation: ± 1% (while on battery)
Automatic Voltage Regulation: Increases or decreases output voltage by 15% if the input voltage decreases
or increases by between 9% and 25%
Transfer Time Between 2 and 4 milliseconds including detection time
Efficiency (Standby Mode): Greater than 95%
Overload Capacity : 110% for 60 seconds, 130% for 3 seconds

TOWER MODELS
Capacity
425VA / 255 W
525VA / 315 W
625VA / 375 W
800VA / 480 W
Input Connection
Fixed power cord
Removable IEC cord
Output Connection
6 x NEMA 5-15R (3 backed-up and 3 surge only)
5 x NEMA 5-15 R
Battery Type & Rating
Sealed, lead-acid
7.2Ah/12V
Sealed, lead-acid
7.2Ah/12V
Sealed, lead-acid
7.2Ah/12V
Sealed, lead-acid
7.2Ah/12V
Battery Quantity
1
1
1
3
Backup Time (full load)
4 min
4 min
4 min
7 min
Recharge Time
<4 hours to 90 %
Dimensions ins/mm
W x D x H
3.8 x 12.6 x 5.3
97 x 320 x 135
5.1 x 15 x 7.9
130 x 382 x 201
Weight lbs/kg (net)
12.8 / 5.8
13.7 / 6.2
14.3 / 6.5
28.6 / 13

TOWER MODELS
Capacity
1000VA / 600 W
1200VA / 720 W
1500VA / 900 W
2200VA / 1320 W
Input Connection
Removable IEC cord
Fixed power cord
Output Connection
5 x NEMA 5-15 R
6 x NEMA 5-15R
Battery Type & Rating
Sealed, lead-acid
7.2Ah/12V
Sealed, lead-acid
7.2Ah/12V
Sealed, lead-acid
7.2Ah/12V
Sealed, lead-acid
7.2Ah/12V
Battery Quantity
2
2
2
4
Backup Time (full load)
6 min
5 min
4 min
6 min
Recharge Time
<6 hours to 90 %
Dimensions ins/mm
W x D x H
5.1 x 15 x 7.9
130 x 382 x 201
6.7 x 17.6 x 8.4
170 x 448 x 214
Weight lbs/kg (net)
33 / 15
33.4 / 15.2
34.3 / 15.6
66 / 30
       
19" Rack-Mount Model Specifications
         
GENERAL  
Rated Capacity: 1000 VA, 1500 VA, 2200 VA
Technology: Line-interactive topology with simulated sinewave output on battery

INPUT  
Phase: Single phase plus ground
nput Voltages: 110V, 115V, 120V or 220V, 230V, 240V
Input Voltage Range: ± 25%
Frequency: 50 / 60 Hz Auto sensing
AC Frequency range: 45 - 65 Hz
nput Current (120V): 1000VA - 8.3A, 1500VA - 12.5A, 2200VA - 18.3A
Input Current (230V): 1000VA - 4.3A, 1500VA - 6.5A, 2200VA - 9.6A
Input Protection: Fuse or circuit breaker for overload and short circuit (model dependent)
DC Bus Voltage: 1000VA - 18V, 1500VA - 24V, 2200VA - 48V

OUPUT  
Output Voltage: 110V, 115V, 120V or 220V, 230V, 240V
Voltage regulation: ± 5% (1000VA - 2200VA)
Power Factor : 0.6
Frequency regulation: ± 1% (while on battery)
Automatic Voltage Regulation: Increases or decreases output voltage by 15% if the input voltage decreases or increases by between 9% and 25%
Transfer Time Between 4 and 8milliseconds including detection time
Efficiency (Standby Mode): Greater than 95%
Overload Capacity : 110% for 60 seconds, 130% for 3 seconds

19" RACK-MOUNT MODELS
Capacity
600VA / 360 W
1000VA / 600 W
1500VA / 900 W
2200VA / 1320 W
Input Connection
Removable IEC cord
Fixed power cord
Output Connection
5 x NEMA 5-15 R
6 x NEMA 5-15R
Battery Type & Rating
Sealed, lead-acid
7.2Ah/6V
Sealed, lead-acid
8.0 Ah/6V
Sealed, lead-acid
8.5 Ah/6V
Sealed, lead-acid
7.2Ah/12V
Battery Quantity
2
2
2
4
Backup Time (full load)
4 min
5 min
5 min
6 min
Recharge Time
<8 hours to 90 %
Dimensions ins/mm
W x D x H
19 x 14.3 x 1.73
483 x 362x 44
19 x 14 x 3.3
483 x 357x 84
19 x 13.8 x 5.1
483 x 351x 130
Weight lbs/kg (net)
20.5 / 9.4
25.3 / 11.5
35.9 / 16.3
62.6 / 28.4
       
All Models
 
ALARMS  AND INDICATORS
Battery Backup: Slow beeping tone (approx. 0.25Hz)
Battery Low: Rapid beeping tone (approx. 1.00Hz)
Overload: Continuous Tone
Front Panel Display: LED's
LED Display Parameters: On Line (AC normal), On Battery (AC failure), Battery Fault
(425VA ~ 625VA models)
  On Line (AC normal), On Battery (AC failure), Battery Fault, AVR Boost, AVR Buck (800VA ~ 2200VA models)
Communication (std): RS-232 communication port and solid state signaling or USB
(optional): SNMP/WEB card or module for monitoring and control on a network or the internet

STANDARDS
Safety: EN50091-1-1
Emissions: EN50091-2 class B
Immunity: EN50091-2
Conformity: UL 1778, cUL 107.1, 107.2, (120V models), CE (230V Models)
Transient Immunity (120V): Per IEEE 62.41 (formerly IEEE 587)
 Transient Immunity (230V): Per IEEE C 61000-4-5 level 3

ENVIRONMENTAL
Ambient temperature range: +32 °F to +104°F (+0 °C to +40 °C)
Optimum temperature range: +59 °F to +77°F (+15 °C to +25 °C)
Storage temperature: +5 °F to +122°F (-15 °C to +50 °C)
Cooling: Natural convection (425VA ~ 800VA), Forced air (1000VA ~ 2200VA)
Humidity:: 0-95%, non-condensing
Elevation: 10,000 feet max (operation), 45,000 feet (storage)
Audible noise: < 40 db normal and battery mode (All models)

MODEL & PART NUMBER DESIGNATION
120V Tower Models: STWS-0425-01, STWS-0525-01, STWS-0625-01, STWS-0800-01, STWS-1000-01, STWS-1200-01, STWS-1500-01, STWS-2200-01
230V Tower Models: STWS-0425-02, STWS-0525-02, STWS-0625-02, STWS-0800-02, STWS-1000-02, STWS-1200-02, STWS-1500-02, STWS-2200-02
120V Rack-Mount Models: SRMS-1000-01, SRMS-1500-01, SRMS-2200-01
230V Rack-Mount Models: SRMS-1000-02, SRMS-1500-02, SRMS-2200-02

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