CIRCUIT BREAKER, 1 AMP (P/N 1963943) - As Removed, New Surplus

The 1963943 is a 1-amp aircraft circuit breaker designed to protect low-current avionics sensor circuits from electrical overloads and faults. This trip-free device interrupts power automatically when current exceeds its 1-amp rating, preventing damage to sensitive instrumentation and wiring. Install per your aircraft wiring diagram and label clearly at the panel.

Qualified under AS58091 or MS3320-1 standards, this breaker meets FAA AC 43.13-1B circuit-protection guidance for general and corporate aviation installations.

What is the CIRCUIT BREAKER, 1 AMP (P/N 1963943)?

The 1963943 is a 1-amp aircraft circuit breaker designed to protect low-current avionics sensor circuits from electrical overloads and faults. This trip-free device interrupts power automatically when current exceeds its 1-amp rating, preventing damage to sensitive instrumentation and wiring.

Is the 1963943 compatible with my aircraft's avionics suite?

Avionics compatibility depends on your aircraft model and existing installation. The CIRCUIT BREAKER, 1 AMP is available in: As Removed, New Surplus. We recommend checking your aircraft's wiring diagrams and STC documentation, or contact our avionics team for compatibility assistance.

Does the 1963943 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 1963943?

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.