Model VS4A                                              AIS4A

Auto Ignition Switch - Turns on a load when the vehicle is on.
• 4 Amp switch, turns on a load when the system voltage is at 13.4V
• Turns off the load when the voltage drops to 12.8V
Also used automatic for solar vent fan control.


Voltage Switch
• For battery discharge protection turns load off at 12.0V, On at 13.3V

• Low Battery consumption
• Can power a relay to increase load current
• Extreme design –40° to +50°C (-40° to +120°F)
• Encapsulated in epoxy potting
• Custom voltage set-points available
• No radio interference
• 5 year warranty

General Specifications
Case: ABS case, completely sealed in epoxy
Weight: 50 grams (approx. 2oz)
Size(H x W x D): 3.8 x 7.0 x 3.1 cm (1.5 x 2.75 by 1.3 inches)
Wire: 18 gauge
Mounting: wall mountable

Electrical Specifications
Max. current at 50°C 4 amps DC
Power Consumption 0.2 mA when load off, 2 mA with load on

Typical set points: On: Custom Voltage, Off: any setpoint to a maximum of .95 times the on setpoint
Custom set points available.

Install Manual (pdf)