Inline DC Circuit Breaker with Manual Reset

Inline DC Circuit Breaker – Manual Reset Circuit Protection

The Inline DC Circuit Breaker provides simple, effective overcurrent protection for a 12V DC circuit in your caravan. Unlike fuses — which must be replaced after a fault — this breaker trips automatically and can be manually reset once the fault is resolved, so you're back up and running in seconds.

Available in a range of amperage ratings, it's used to protect wiring runs, inverters, solar charge controllers, and other 12V loads from damage caused by short circuits or overloads.

Key Features

• Manual Reset — trip and reset via the built-in button without replacing a fuse, restoring power quickly after a fault
• Overcurrent Protection — automatically disconnects the circuit when current exceeds the rated threshold
• Inline Design — installs directly in the DC wire run, no separate fuse holder required
• Multiple Amperage Options — available in 40A, 50A, 80A, 100A and 150A ratings to suit different circuits and loads
• Durable Construction — built to handle repeated tripping and resetting in the caravan environment

Brand Quality
This circuit breaker is a reliable, no-fuss way to add resettable overcurrent protection to your 12V system, giving you the confidence that your wiring and equipment are protected without the hassle of carrying spare fuses.

Type: Inline DC circuit breaker with manual reset

Application: 12V DC caravan wiring protection

Amperage options: 40A, 50A, 80A, 100A, 150A

Reset method: Manual push-button reset

Installation: Inline, in-wire mounting — no fuse holder required

Dimensions (approx.): 10mm x 45mm x 40mm

Q: When should I use a circuit breaker instead of a fuse?
A: Circuit breakers are ideal for circuits that may need to be reset without replacing a fuse — such as heavy-duty appliance circuits. For most standard circuits, fuses are fine. For inverters, motor loads, and compressor fridges where nuisance tripping is possible, a circuit breaker saves time.

Q: What amperage rating do I need?
A: Choose a breaker rated slightly above the maximum continuous current your circuit will draw, and matched to the wire gauge used — check your appliance or inverter's rated current draw, and contact us if you're unsure which amperage option is right for your setup.

Q: Does the price include GST?
A: Yes, all prices shown on the site include GST.

Q: Do you ship NZ-wide?
A: Yes, we ship throughout New Zealand.

Q: How do I know this will fit my setup?
A: Check the amperage rating and dimensions listed in the Specifications tab against your circuit's wiring and current draw. If you're unsure, contact us and we can help you pick the right rating.

Q: What's the warranty?
A: Please contact us for warranty details on this item.