Waterproof, Switchable, Surface Mount Circuit Breakers

  (14 Reviews)
Price:  £33.65   (£28.04 Exc. VAT)

Product code:  P01376


These rugged thermal circuit breakers are designed for the protection and isolation of high current circuits up to 200A. They are fully waterproof to IP67 and ignition protected for safe marine use. The manual trip can be used to switch off and isolate the circuit if required, is easily re-settable and provides an easy-to-see indication that the breaker has tripped.  Well suited for use in engine compartments and bilge areas for protection of high current accessory and auxiliary circuits (examples include high current audio and battery charging applications).

The terminal studs are stainless steel and feature locking washers and rubber insulation covers.

Ideal for use on boats, trucks, agricultural vehicles, motorhomes, buses etc.

Sold individually.

Further information

The following terminal covers can be used with these circuit breakers:

  • Voltage rating: 48V DC max.
  • Available current ratings: 50, 60, 80, 100, 150 & 200A
  • Ingress Protection rating: IP67 (dust-tight and immersion to 1m for 30 mins)
  • Terminal stud sizes: 6mm (50-150A) / 10mm (200A)
  • Terminal stud height: 12.5mm (50-150A) / 20mm (200A)
  • Operating temperature range: -32°C to +82°C
  • Overall dims (50-150A): 74 (L) x 48.5 (W) x 45 (H) mm
  • Overall dims (200A): 86.5 (L) x 48.5 (W) x 45 (H) mm
  • Mounting hole diameter: 6.5mm
  • Regulatory compliances: SAE J1625, SAE J1171 (Ignition Protected)

Part Number:  HCB50S.1

Average Rating (14 Reviews):  
Write a Review and share your opinions!

solid bit of kit
15 August 2023  | 

like so many others, i purchased cheap versions of these from a well known online auction marketplace but found that after less than a year they had started giving up and opening randomly when there wasn't even power on. although I've not had these breakers fitted for long, the quality is immediately noticeable. I'm certain these will last, especially with of everyones recommendations


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Donít buy cheap unless you want to buy twice!
07 September 2021  | 

Not YET tried. Cheaper (not 12voltplanet) had big volts drop. Inside the contacts are rounded and blackened. Point (pin head) contact useless!

29 July 2021  | 

Well made, does the job

Good Product
15 July 2021  | 

This is a good product but expensive to the alternatives from other suppliers.

Excellent service
18 December 2020  | 

I ordered a 150amp switchable fuse from 12 volt planet, it arrived very promptly, this is company has a good selection of products and I would highly recommend them.

15 December 2020  | 

I bought one of another website which uses paypal. The quality between the two is obvious. you get what you pay for.

Excellent Circuit Breaker
30 October 2020  | 

Ideal protective circuit breaker AND isolator for my small home solar 12Vdc system. Sturdy strong unit - has a feel of solidity and quality. The mechanism is precise and consistent. Good price - value for money - speedy delivery. I recommend this product and this company.

Excelent Quality
19 October 2020  | 

A compact piece of top quality electrical equipment.

It pays to use quality
24 February 2020  | 

Don't skimp in this area. It may just be a breaker but you need a reliable one that passes AMPs efficiently. I made the mistake of using a cheaper one. Don't.

Circuit Breaker
09 May 2019  | 

Perfect for the high DC power fusing and manual trip

Read all 14 customer reviews...

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Auto & Marine Electrical Components