Specifications

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TRANSFER SWITCH CONFIGURATION
The AC transfer switch is configured via jumpers on a removable terminal plug on the
back of the inverter.
NOTE: When using the transfer switch option, you must utilize the AC output contacts
on the back of the inverter. The transfer switch will not work if used with the NEMA 15
connectors (plug) on the front of the inverter.
INVERTER AS PRIMARY SOURCE OF AC POWER
-X28 OPTION
CAUTION: “ X28 OPTION IS NOT AUTHORIZED FOR USE IN LAND MOBILE
APPLICATIONS ”
1. Remove the terminal plug from the inverter by hand or with needle-nose pliers. On
the underside of the plug are screw terminals to set connections. (The terminal plug
can take up to 12GA wire.)
2. Insert a jumper between INVOUT and NO, then insert a jumper between COIL and
INV. (see drawing)
3. Connect your load to the LOAD (AC hot) contact, NEUTRAL (AC return), and
CHASSIS (AC ground) contacts.
4. Connect utility power to the NC (Utility hot), NEUTRAL (Utility return), and CHASSIS
(Utility ground) contacts.
OPERATIONS: When Battery voltage is available to the inverter and the front panel
switch is turned “on” OR when the remote terminal is connected to battery negative, the
inverter will turn “on”.
When the inverter AC power fails, the transfer switch “switches” to utility AC power in
50ms or less. When the inverter AC power is present again (turns back on), the
transfer switch “switches” back to the inverter AC power in 50ms or less.