The Kussmaul Auto Interlock II 120 V is an automatic AC power transfer relay designed to manage 120 VAC power between shoreline power and an auxiliary generator or inverter. Designed for fire apparatus, ambulances, rescue vehicles, command vehicles, and other specialty vehicle applications, the Auto Interlock II automatically transfers connected electrical loads between available power sources without requiring operator intervention.

When the auxiliary generator is started, the Auto Interlock II automatically disconnects the connected load from shoreline power and transfers it to the generator or inverter power source. When the auxiliary power source is shut down, the system automatically returns the connected load to shoreline power for dependable and convenient power source management.

Indicator lights provide clear visual identification of the active power source supplying the connected load. With a maximum current capacity of 20 amps, automatic operation, and a compact design, the Auto Interlock II provides a straightforward solution for managing multiple AC power sources in emergency and specialty vehicle electrical systems.

Features

• Automatically transfers electrical loads between shoreline power and generator or inverter power
• Designed for 120 VAC electrical systems
• Maximum current capacity of 20 amps
• Automatically disconnects the load from shoreline power when auxiliary power becomes available
• Transfers connected loads to generator or inverter power without operator intervention
• Automatically returns connected loads to shoreline power when auxiliary power is shut down
• Indicator lights identify the active power source supplying the connected load
• Fully automatic operation requires no routine operator intervention
• Helps provide dependable power source management for onboard AC electrical equipment
• Easy installation simplifies integration into emergency and specialty vehicle electrical systems
• Compact design supports installation where space is limited
• Ideal for fire apparatus, ambulances, rescue vehicles, command vehicles, and other specialty vehicle applications
• Backed by a 3-year manufacturer's warranty

Specifications

• Manufacturer: Kussmaul Electronics
• Product Type: Automatic AC Power Transfer Relay
• Model: Auto Interlock II 120 V
• Operating Voltage: 120 VAC
• Maximum Current Capacity: 20 Amps
• Transfer Sources: Shoreline Power and Auxiliary Generator or Inverter Power
• Automatic Load Transfer: Yes
• Automatic Return to Shoreline Power: Yes
• Active Power Source Indicators: Yes
• Operator Intervention Required: No
• Weight: 2 lbs.
• Warranty: 3-Year Manufacturer's Warranty