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Compact rectangular circuit breaker in black plastic and silver metal with red reset button and rubber terminal covers

Unique-Bargains

Unique-Bargains 120A Waterproof Circuit Breaker 12-48V DC Car Electronics Accessory

SKU CH-BXNP-DMYZ5

A 120 A manual-reset circuit breaker with waterproof housing and kill-switch button protects 12, 24 or 48 V DC systems in automotive, RV or marine installations

  • Product typeCar Charger
  • Protects circuits from overload with 120A rating
  • Manual reset button doubles as kill switch
  • Waterproof housing shields internals from moisture
  • Accepts 0/2/4/8 gauge power cables
  • Compact 7.4x5.5x4.9cm fits tight spaces

120A Waterproof Circuit Breaker for 12-48V DC

This Unique-Bargains circuit breaker provides high-current overload protection for automotive, RV and marine electrical systems. It operates across 12, 24 and 48 volt DC circuits with a 120 ampere rating. The unit features a manual reset button that doubles as a main disconnect or kill switch for the circuit.

Verify voltage range and wire gauge compatibility

Confirm that your vehicle or vessel uses a 12, 24 or 48 volt DC system before installation. The breaker accepts 0, 2, 4 or 8 specification power cables with the included adapter. Ensure the 7.4 by 5.5 by 4.9 centimetre housing fits your chosen panel or firewall mounting location.

Suits DC circuits needing resettable overload

Ideal for installers who want a reusable alternative to blade fuses on high-current accessory feeds. Not suitable for AC mains circuits or systems exceeding 48 volts DC. Buyers who need automatic reset without manual intervention should look at a different protection device.

How it compares

Measured against everything we stock in Car Audio Accessories & Wiring, at today’s prices. Recalculated every night.

Price $9.99
Cheaper than about 91% of the 2,768 comparable items (median $21.99).

Specifications

Product
Brand nameUnique Bargains
Product typeCar Charger

Questions about this item

Does the package include mounting hardware or power cables, or must they be purchased separately?

The box contains only the circuit breaker itself; mounting bolts, wiring and terminal connectors are not included and must be sourced separately.

Which voltage system — 12 V, 24 V or 48 V — should I select for my vehicle?

The breaker is rated for all three nominal DC voltages (12 V, 24 V and 48 V), so choose the one that matches your vehicle or vessel electrical system.

What does the 120 A rating mean when the breaker is installed in a real 12 V circuit?

At 12 V the breaker will carry up to 120 A continuously and trip on sustained overload, providing roughly 1.4 kW of protected power capacity.

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