JL Audio XMD-MCB-30 30 Amp Waterproof Ignition Protected Circuit Breaker
The JL Audio XMD-MCB-30 is a waterproof, ignition-protected circuit breaker rated at 30 Amp. It provides manual-reset circuit interruption for marine electrical circuits, and marine electricians install the unit in boats where waterproof breaker protection is required.
Technical Specifications
| Breaker Rating | 30 Amp |
|---|---|
| Protection | Waterproof, ignition protected |
| Reset Type | Manual reset |
| Switch Type | High-visibility switch |
| Weight | 1 lb (0.454 kg) |
| Dimensions | 4.5 x 2.5 x 2 in (114.3 x 63.5 x 50.8 mm) |
| Included Items | One circuit breaker, installation hardware, owner’s manual |
| Product Category | Master switches, fuses, and breakers |
Compatibility & Applications
- Fits marine engine compartments and fuel tank spaces.
- Mounts in boats requiring a waterproof, ignition-protected breaker.
- Wires to marine circuits requiring 30 Amp circuit protection.
- Drops into installations supplied with hardware and an owner’s manual.
- Includes a manual-reset switch for visible breaker status at the unit.
In a marine engine compartment or fuel tank space, the unit can serve as the 30 Amp manual-reset breaker at the protected circuit. Its documented differentiator versus a breaker described only by amperage is the combined waterproof, ignition-protected construction and high-visibility switch.







