Battery Master Relay Upgrade

An FAA STC/PMA approved safety upgrade to your aircrafts electrical system that authorizes the installation of a high current Battery Master Relay and low current control circuit.

This safety upgrade provides a high current path for the aircraft electrical load, eliminating switch heating, burnout and potential fire danger.

This installation is accomplished through the addition of a high current master relay attached to the battery box, which reuses much of the existing factory installed wiring.

The battery master switch is replaced by a new AN3027-2 / MS35059-22 switch at its current location or relocation to the instrument panel is authorized.

Material is supplied to accomplish either installation method.

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