The Kussmaul 091-134 Auto Interlock II is a 120 volt AC power transfer relay that automatically moves the vehicle's AC load from shoreline to the auxiliary generator (or inverter) as soon as the generator is started. When the generator shuts down, the load is returned to shore power.
Once installed, operation is fully automatic and requires no operator intervention. Indicator lights show which input – main (shoreline) or auxiliary – is active and supplying the load, and the compact enclosure installs easily.
Key Features:
- Automatic transfer from shoreline to generator or inverter
- Returns load to shore power when the generator stops
- 20A capacity
- Indicator lights show active power source
- Fully automatic – no operator action required
- Easy installation
- 3-year Kussmaul warranty
Specifications:
| Voltage | 120 VAC |
|---|---|
| Current Capacity | 20A max |
| Inputs | Main (shoreline) and Auxiliary (generator / inverter) |
| Indicators | Main, Auxiliary, Output |
| Weight | 2 lb |
| Warranty | 3 Years |
Applications:
- Fire apparatus with generators
- Ambulances with inverters or generators
- Command and rescue vehicles
The Auto Interlock II keeps shore and generator power from ever meeting – automatically.
