The Enerdrive EN-RCB40 is a 40 amp (40A) manual-reset, surface-mount circuit breaker built for 12V and 24V DC touring and marine systems, and it doubles as a handy on/off isolation point. It is ignition protected (SAE J1171) and weather resistant, with a trip-free mechanism so it cannot be held closed after a fault. The visible reset lever makes fault-finding simple, and the standard footprint is a drop-in replacement for 185/285-series breakers - ideal for DC-DC chargers, solar feeds, fridge circuits, light-duty winch feeds and accessory distribution.
40 amp or 80 amp?
This is the 40 amp version on 5/16" studs. For heavier cable and higher current runs, see the Enerdrive 80 Amp Resettable Circuit Breaker on 3/8" studs. Always size the breaker to your cable and load.
Key features
- 40 amp manual-reset, surface-mount DC breaker (12V/24V systems)
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Trip-free design - cannot be held closed on a fault
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Ignition protected - meets SAE J1171, safe for petrol engine bays (per spec)
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Weather-resistant housing for harsh environments
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Visible reset lever shows open condition
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Drop-in footprint for 185/285-series style breakers
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5/16" studs with terminal hardware included
What's in the box
- EN-RCB40 breaker
- Terminal nuts and lock washers
Tech specs
- Model: EN-RCB40
- Rating: 40A (40 amp), manual reset
- Studs: 5/16" (8mm)
- Use: 12V/24V DC auxiliary circuits - size cable and breaker per the relevant sizing guides
Why buy from us
- Real system advice from installers who use this gear
- Fast QLD dispatch and honest stock comms
- Fair everyday pricing plus sharp clearance options
- Local post-sale support to get your setup dialled
