You've got a 12V system feeding a winch, a compressor, or a solar charge controller, and the last thing you need is hunting for a blown fuse at 6am. This Jaycar 40A single-pole thermal breaker bolts straight to a flat panel, trips when current spikes past 40A, cools down, and resets itself. No fuses to stock. No fuses to replace. Just bolt it in, wire it up, and let it do the protecting. RRP $18.64. Add to cart and it's on its way to your workbench
| brand | Jaycar |
| sku | SF4104 |
| category | Electronics & Components |
| subcategory | Electronic Components |
| voltage | 12VDC |
| amperage | 40A |
| pole | Single |
| type | Thermal auto-reset circuit breaker |
| mounting | Chassis mount (bolt-down) |
| rrp_aud | 18.64 |