SWITCH, MASTER (P/N 357290-1) - As Removed

The 357290-1 is a master switch that controls primary electrical power distribution on aircraft electrical systems. This switch disconnects battery and alternator sources from the main bus, isolating all aircraft systems when needed. Mounted on the cockpit panel, it enables pilots to energize or de-energize the electrical system during startup, shutdown, and emergency procedures.

Installation requires wiring per the aircraft maintenance manual with proper current and voltage ratings matched to system specifications. Complies with 14 CFR 23/27.1361 electrical system requirements.

What is the SWITCH, MASTER (P/N 357290-1)?

The 357290-1 is a master switch that controls primary electrical power distribution on aircraft electrical systems. This switch disconnects battery and alternator sources from the main bus, isolating all aircraft systems when needed.

Is the 357290-1 compatible with my aircraft's avionics suite?

Avionics compatibility depends on your aircraft model and existing installation. The SWITCH, MASTER is available in: As Removed. We recommend checking your aircraft's wiring diagrams and STC documentation, or contact our avionics team for compatibility assistance.

Does the 357290-1 come with an 8130-3 airworthiness tag?

Availability of an FAA 8130-3 tag depends on the part condition. Overhauled and repaired units typically include 8130-3 documentation. As-removed units may include a removal tag with trace history. Contact us for specific documentation on the condition you need.

Do you offer bench testing for the 357290-1?

We can arrange bench testing through our network of FAA-certified repair stations. Call (904) 998-9101 for testing availability and turnaround times, or submit an RFQ with your specific requirements.