Specifications

V97-600002 Page 8 of 31
2.3.1 Inverter Voltage and Frequency Limits
The inverter is factory-calibrated to the voltage and frequency limits specified in
Table 2.2. This adjustable range can be set by PV Powered field technicians.
Condition Factory setting
(VAC) or (Hz)
Adjustable
Range (VAC)
Maximum
trip time(s)
Voltage phase high 132.0 132.0 - 142.0 < 1 second
Voltage phase low 105.6 95.6 - 105.6 < 2 seconds
Voltage phase fast high 144.0 144.0 - 156.0 < 160mS
Voltage phase fast low 60.0 <60.0 < 160mS
Voltage high Line to Line (240V
inverters)
264.0
Voltage low Line to Line (240V
inverters)
211.0
Voltage high Line to Line (208V
inverters)
228.8
Voltage low Line to Line (208V
inverters)
183.0
Line Frequency Low 59.3 Hz n/a < 160mS
Line Frequency High 60.5 Hz n/a < 160mS
Table 2.2 Voltage and Frequency Limits
Do not proceed with the electrical connection of the inverter until it has been
properly mounted.
WARNING: Electrical connections must be completed in accordance with local
electrical codes and the National Electrical Code (NEC), ANSI/NFPA 70. Use 10 AWG,
minimum 90°C (194°F), copper wire for all inverter electrical connections. Voltage
drop as well as other considerations may dictate using larger wire sizes.
NOTE: PV Powered recommends sizing wire of one percent voltage drop for AC
and one percent voltage drop for DC.
WARNING: Make sure the main breaker in the main utility breaker box is
switched OFF before wiring the inverter. This breaker should be switched ON only
after all wiring has been completed as described in this manual.
WARNING: Follow the order listed below to wire the inverter. Failure to do so
may result in hazardous voltages or disconnection of contacts.