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Models 850VA 1.15kVA 1.4kVA 1.8kVA 2.1kVA 3.1kVA 4.3kVA* 7kVA*
Part Number FES850 FES1.15 FES1.4 FES1.8 FES2.1 FES3.1 FES4.3 FES7
Capacity (kVA/kW) .8/.6 1.15/.8 1.4/1 1.8/1.25 2.1/1.5 3.1/2.2 4.3/3 7/5
Input - Hardwired Connection Circuit Breaker Requirement* 120/10A
208/5A
240/5A
120/15A
208/10A
240/5A
120/15A
208/10A
240/10A
120/20A
208/15A
240/10A/
120/25A
208/15A
240/15A
120/35A
208/20A
240/15A
120/40A
208/25A
240/20A
120/65A
208/40A
240/35A
Output Connection Hardwired output is standard.  Contact factory for receptacle options.
Efficiency % (on-line) 85 88 88 90 90 91 90 90
Heat (on-line)
BTU/hr
kW/hr

361
0.106

372
0.109

465
0.136

474
0.139

568
0.166

742
0.217

1138
0.333

1896
0.556
Typical Runtime
full load
half load
(minutes)


11
28


19
49


14
36


31
73


24
58


14
35


26
61


12
33
Battery Charger (DC) 12V, 4A 12V, 8A 48V, 4A 48V, 5A
Weight
lbs
kg
(incl. batteries)

62
28

79
36

85
39

132
60

154
70

183
83

196
89

256
116
Dimensions
inches
mm
HxWxD

9.75 x 16 x 21.25
248 x 406 x 540

9.75 x 16 x 26.25**
248 x 406 x 667

19 x 16 x 26.25
483 x 406 x 667
Front Panel
inches
mm
HxW

10.5 x 19
267 x 483

10.5 x 19
267 x 483

19.25 x 19
489 x 483
Battery Pack
inches
mm
HxWxD

internal

internal

8.3x16.25x24.25
211x413x616
Operation
Nominal Input Voltage 120/208/240
Input Voltage Range +15%, -20%
Input Power Factor 0.98
Nominal Output Voltage 120/208/240
Output Voltage Regulation ± 3% for input voltages of + 15% to -20%
Output Voltage Waveform Sine wave
Output Voltage THD 5% or less at rated kW load
Overload Capacity 150% surge and 125% for 10 minutes on-line,
150% surge and 110% for 10 minutes on inverter
Transfer Time 0 ms
Lightning, Surge & Noise Protection 2000:1 spike attenuation using ANSI/IEEE C62.41 Category A and Category B tests.
Common Mode - >120dB.  Normal Mode - >60dB
Efficiency 85 86 85 88 88 90 90 91
Safety Certification UL, CSA (cUL)
EMI Compliance FCC Class A
Testing Standards ANSI/IEEE C62.41 (1980); ANSI/IEEE C62.45 (1987); IEC 801-2, 801-4, 801-5
Communication RS-232 serial port (DB-25), plus contact closures
Environmental
Operating Temperature 0† to 40† C
Storage Temperature -20† C to +60† C  (-20† C to +40† C if battery is not removed.)
Relative Humidity 0 to 95% without condensation
Ventilation Requirement Clean, dust-free air, free of corrosive chemicals 
or other contaminants with proper air circulation.
Audible Noise (dBA) 48 50 50 50 50 51 50 52
High-Altitude Operation Maximum ambient operating temperature drops by 1† C per 305 meters (1000 feet) above sea level with the maximum elevation being 3,050 meters (10,000 ft).
All specifications subject to change without notice.
  * Includes front panel keypad and display.
** 1.8, 2.1 and 3.1kVA models can be configured with 21.25 depth.  Consult factory.

   

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Bomara Associates Phone: 800.5BOMARA (800.526.6272) Phone: 978.452.2299 Fax: 978.452.1169 3 Courthouse Lane, Chelmsford, MA 01824 USA
email: bobr@bomara.com      web: www.bomara.com
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