• Marine Rated Circuit Breaker - 20A 32V DC (Ignition Protected) - CB255-20
  • Marine Rated Circuit Breaker - 20A 32V DC (Ignition Protected) - CB255-20
  • Marine Rated Circuit Breaker - 20A 32V DC (Ignition Protected) - CB255-20
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JAS Oceania - CB255-20

Marine Rated Circuit Breaker - 20A 32V DC (Ignition Protected) - CB255-20

Ideal for protecting 12V and 24V DC circuits in marine, 4WD, caravan, and automotive electrical systems requiring reliable, resettable overcurrent protection.

$89.95 AUD
$89.95 AUD
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  • Genuine Eaton Bussmann marine-rated protection
  • Ignition protected for safer installation in engine compartments
  • Weatherproof housing built for harsh environments
  • Resettable design eliminates the need for fuse replacement

The CB255-20 is a Bussmann Series marine-rated circuit breaker designed for reliable protection in 12V and 24V DC systems. Rated at 20 amps and 32V DC, this low-profile breaker provides dependable overcurrent protection in demanding automotive and marine environments.

Built with a weatherproof housing and Type III ignition protection, the CB255-20 is ideal for installations where safety and durability are critical. The push-to-trip manual reset function allows for quick testing and reset after a fault condition, eliminating the need for fuse replacement while maintaining robust circuit protection.

Supplied with SEMS nuts pre-installed, this panel-mount breaker delivers a clean, secure installation for boats, 4WDs, caravans, and other DC-powered systems exposed to vibration and moisture.

Key Features

  • 20A marine-rated circuit breaker
  • 32V DC operating voltage
  • Type III ignition protected
  • Weatherproof construction
  • Low-profile compact design
  • Manual reset with push-to-trip function
  • Panel mount installation
  • SEMS nuts installed

Specifications

Brand Eaton (Bussmann Series)
Model CB255-20
Product Type Marine rated circuit breaker
Amperage Rating 20A
Voltage Rating 32V DC
Ignition Protection Type III
Protection Weatherproof
Reset Type Manual reset (push-to-trip)
Mounting Method Panel mount
Product Length 1.42 in
Product Height 2.15 in
Product Width 1.6 in
Product Weight 0.9 lb
Compliance RoHS Compliant

What does "marine rated" mean?

Marine rated means the circuit breaker is designed to operate reliably in environments exposed to moisture, vibration, and temperature variation. It features weather-resistant construction suitable for boats, caravans, and 4WD applications.

What does "Type III ignition protected" mean?

Type III ignition protection means the breaker is designed to prevent sparks or arcs from igniting flammable vapours. This makes it suitable for installation in engine compartments and marine environments where fuel vapours may be present.

Is this a manual reset breaker?

Yes. The CB255 series is a manual reset breaker with a push-to-trip function. Once it trips due to an overload, it must be manually reset after the fault is cleared.

Can this replace a fuse?

Yes. A resettable circuit breaker like the CB255 can replace a fuse of the same amperage rating. It provides overcurrent protection without requiring fuse replacement after a trip.

Can this be used in 12V and 24V systems?

Yes. The CB255 series is rated up to 32V DC, making it suitable for both 12V and 24V DC systems.

How do I choose the correct amp rating?

Select a breaker rated slightly above the normal operating current of the circuit, but below the maximum current rating of the cable. Always match protection to cable size.

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