BREAKER, CIRCUIT, 4 AMP (P/N 1963946) - New Surplus
P/N: 1963946
Category: Circuit Breakers & Fuses
This product requires a custom quote. Please contact our sales team for pricing information or submit an RFQ (Request for Quote).
Available Inventory
| Condition | Stock |
|---|---|
| New Surplus | 2 Available |
Product Description
The 1963946 is a 4-amp aircraft circuit breaker providing resettable protection for electrical loads against overloads and short circuits. This breaker automatically trips when current exceeds its 4-amp rating, then resets for continued operation once the fault is cleared. Commonly installed in avionics bus circuits and equipment panels to safeguard sensitive navigation, communication, and flight instrument systems.
Verify MS standard compliance (MS3320 or MS26574) and panel dimensions against your aircraft's Illustrated Parts Catalog before installation. Follow your aircraft maintenance manual for proper mounting and integration with existing electrical architecture.
Please note: Product descriptions are provided for informational purposes. Always refer to your aircraft's Illustrated Parts Catalog (IPC) to verify part compatibility and specifications.
Frequently Asked Questions
What is the BREAKER, CIRCUIT, 4 AMP (P/N 1963946)?
The 1963946 is a 4-amp aircraft circuit breaker providing resettable protection for electrical loads against overloads and short circuits. This breaker automatically trips when current exceeds its 4-amp rating, then resets for continued operation once the fault is cleared.
Is the 1963946 compatible with my aircraft's avionics suite?
Avionics compatibility depends on your aircraft model and existing installation. The BREAKER, CIRCUIT, 4 AMP 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 1963946 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 1963946?
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.