BREAKER CIRCUIT 30 AMPERES MAIN LIGHTS SWITCH
WOA1349
10.4
30 Ampere Circuit Breaker Headlights
For push-pull light switch
30 ampere thermal circuit breaker for lighting circuit protection. This circuit breaker mounts to the rear of the push-pull type headlight switch and protects headlamps and other lighting against overload. In case of overload, the breaker automatically trips and resets itself after cooling down.
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Type Thermal circuit breaker, automatic reset |
Capacity 30 Ampere |
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Application Headlight switch (push-pull type) |
Mounting To rear of light switch |
Features
- 30 Ampere capacity for 6V lighting system
- Thermal protection with automatic reset
- Protection against short circuit and overload
- Prevents fire in case of electrical faults
- Mounts directly to push-pull headlight switch
★ Essential safety component that protects the entire lighting circuit against overload. The automatic reset function ensures the circuit breaker resets itself automatically after cooling down.
Application
This 30 ampere circuit breaker is used on the early-type push-pull headlight switch of WWII military jeeps. The circuit breaker protects the entire lighting circuit — headlamps, tail lights and other lighting — against short circuits and overload. Fits vehicles with push-pull type light switch (primarily 1941-1944 production).
Installation notes
The circuit breaker mounts to the rear of the push-pull light switch. Electrical connection runs from the ammeter (driver's side) via the breaker to the headlight switch. When fitting, check the quality of all connections and ensure good contact surfaces to guarantee optimal operation.
Compatibility
Specific for push-pull type headlight switch. Later rotary-type switches may require a different amperage circuit breaker (often 15 ampere). Note: when converting to 12V system, a lower amperage breaker is required (approximately 15A) as 12V bulbs draw less current — a 30A breaker will trip too late or not at all in case of short circuit on 12V.
Historical context
The thermal circuit breaker was one of three circuit breakers on WWII jeeps — alongside breakers for fuel gauge (5-10A) and horn (15-20A). This protection was crucial to prevent fire hazard during demanding military use under extreme conditions.
This description was generated automatically. Unsure about fitment? Contact us at info@willys.be.
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This part is intended for the restoration of historic military vehicles. Fitting, aligning, deburring or reworking is part of that work and is inherent to the nature of these goods. Dimensional variation also exists between original vehicles.
Installation requires technical knowledge of the vehicle. Unsure whether this part suits your version? Ask us before purchase at info@willys.be.
ALL_CATEGORIES : 09 DASHBOARD MB/GPW, electricity dashboard dodge closed, electricity dashboard open cab
This part fits:
| Model | Years |
|---|---|
| Military jeeps | |
| Willys MB (early) | 1941, 1942 |
| Willys MB | 1942, 1943, 1944, 1945 |
| Hotchkiss M201 | 1956, 1957, 1958, 1959, 1960, 1961, 1962, 1963, 1964, 1965, 1966 |
📐 Diagrams & technical drawings
From the original Technical Manual TM 10-1513 — Maintenance Manual — only for Willys MB / Ford GPW (1942)
From the original Technical Manual TM 9-1803B — Ordnance Maintenance — Power Train, Body & Frame — only for Willys MB / Ford GPW (¼-ton 4×4)








