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WhisperPower Inverter / Battery Charger
For AC Output Hardwire Connections:
• Insert the AC Input cable through the AC Output Strain relief b on the unit.
• Connect the AC Sub-Panel AC Ground wire to the AC Output Ground terminal x on the unit.
If a solid ground wire is used, the wire can be connected directly under the screw head. If a
stranded ground wire is used, ring terminals must be used
• Connect the AC Sub-Panel AC Live or Hot wire to unit's AC Output 'L' Live or 'H' Hot terminal w.
• Connect the AC Sub-Panel AC Neutral wire to unit's AC Output Neutral 'N' terminal v.
• Tighten the strain relief to secure the AC Input wire.
IMPORTANT: (For 230VAC models only)
The unit's AC Output Hardwire connector is configured for use with external RCD
(Residual Current Device) or GFCI (Ground Fault Circuit Interrupter) connected to the AC
Output of the unit. The AC output neutral pin from the Inverter section before the transfer
switch is bonded to the unit's chassis through the Ground Screw as shown. This Neutral
bonding is required in order to have the external RCD/GFCI to work properly.
Safety standards in the USA and elsewhere demand this Neutral-to-Ground bonding.
If RCD/GFCI is not required for your installation, the Ground Screw can be removed, and
this will un-bond the AC output neutral pin of the inverter section to the unit's chassis.
Note: This Ground Screw (either in used or not) will not have any effect between unit's
AC Input Neutral and chassis.
Multi-Function Display Connection:
• Route the RJ12 cable from the unit to your desired location for the Multi-Function Display and
connect one end of the cable to the main unit Display Port and the other end of the cable to
the Display Panel socket located at the rear panel of the Multi-Function Display.
BTS (Battery Temperature Sensor) Connection (optional):
To provide more accuracy and precision on battery voltage charging against battery temperature,
a BTS (sold separately) can be used.
• Connect the RJ12 end of the BTS cable to the BTS Port on the main unit.
• Install the ring terminal end of the BTS cable to the negative terminal of the battery bank.
Digital Input Port Connection (optional):
If a power selection switch or relay is present, the auxiliary contact may be used to provide a
differently programmed current limit when in generator mode. Connect the Faston wired
connection through the auxiliary contact to a fused 12 V connection at the battery
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