BREAKER (P/N 7274-2-4) - New Surplus

The 7274-2-4 is a Klixon thermal push-pull circuit breaker rated for 4 amps, conforming to MS26574-4 specifications. This compact panel-mount breaker protects aircraft electrical circuits on 28 VDC or 115 VAC, 400 Hz systems from overcurrent conditions. The trip-free design ensures the breaker cannot be held in the ON position if an overload occurs, automatically interrupting power to the protected branch.

Mount through the panel bushing and wire per aircraft maintenance manual specifications. Commonly used on avionics feeder branches and general electrical distribution panels in general aviation and commercial aircraft.

What is the BREAKER (P/N 7274-2-4)?

The 7274-2-4 is a Klixon thermal push-pull circuit breaker rated for 4 amps, conforming to MS26574-4 specifications. This compact panel-mount breaker protects aircraft electrical circuits on 28 VDC or 115 VAC, 400 Hz systems from overcurrent conditions.

Is the 7274-2-4 compatible with my aircraft's avionics suite?

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

Does the 7274-2-4 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 7274-2-4?

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.