BREAKER CIRCUIT 15 AMPERES ADAPTABLE
Circuit breaker 15 ampere
Thermal automatic reset
Thermal circuit breaker with 15 ampere capacity for electrical system protection. This safety component protects the horn circuit against overload and short circuits by automatically interrupting the circuit when subjected to excessive load.
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Type Thermal circuit breaker, automatic reset |
Capacity 15 ampere |
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Voltage 6V systems |
Application Horn circuit |
Features
- 15 ampere capacity
- Thermal automatic reset function
- Protection against overload and short circuits
- Mounted behind the dashboard
- Compatible with 6V electrical systems
★ Essential safety component for protecting the electrical system against short circuits and overload.
Application
This 15 ampere circuit breaker is mounted behind the dashboard on a bracket, between the ammeter and the horn. The component specifically protects the horn circuit. On military jeeps, two circuit breakers were used: a 5 ampere for the fuel gauge and ignition switch, and this 15 ampere for the horn.
Installation notes
Mounted on bracket behind the centre of the dashboard, visible from the passenger footwell. The circuit breaker is in series between the voltage regulator side of the ammeter and the horn. In case of overload, the thermal protection automatically interrupts the current and resets itself after cooling down.
Compatibility
Suitable for vehicles with 6V electrical system. Civilian models CJ-2A and CJ-3A used a similar configuration to the military MB/GPW. Note: M38 and M38A1 used a different type of circuit breaker configuration with 25-30 ampere breakers mounted on the battery box.
Historical context
Circuit breakers were fitted to military jeeps during WWII as fire prevention. Unlike disposable fuses, these thermal breakers reset automatically after cooling down, a practical advantage in field 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, DASHBOARD CJ2A, ELECTRIC BODY CJ2A, DASHBOARD CJ3A, ELECTRIC BODY CJ3A, DASHBOARD M38, PARTS DASHBOARD CJ2A, 09 DASHBOARD CJ3B, ELECTRIC BODY CJ3B
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 |
| Willys M38A1 | 1952, 1953, 1954, 1955, 1956, 1957, 1958, 1959, 1960, 1961, 1962, 1963, 1964, 1965, 1966, 1967, 1968, 1969, 1970, 1971 |
| CJ series | |
| Jeep CJ-2A | 1945, 1946, 1947, 1948, 1949 |
| Jeep CJ-3A | 1949, 1950, 1951, 1952, 1953 |
📐 Diagrams & technical drawings
From the original Technical Manual CJ2A_PL_1949 — Parts List — only for Willys CJ-2A / CJ-3A (1949)
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)








