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Small black rectangular ATC footprint breaker with blade terminals and manual reset button

Bussmann

Bussmann CB227-25 25 A 28V DC circuit breaker

SKU CH-63HR-WAW8R

A 25 A, 28 V DC Type III plug-in circuit breaker with manual reset for ATC fuse footprints in boats, buses, RVs and trucks

  • Manual reset protects circuits after overload
  • 25 A rating matches standard ATC fuse footprint
  • 28 V DC operation suits boats, buses, RVs, trucks
  • Thermoplastic housing meets UL 94V-0 flammability standard
  • RoHS compliant and 2 kA interrupt rating at 28 V DC

25 A ATC-footprint circuit breaker

This 25 A Type III breaker drops into an ATC fuse footprint and is rated for 28 V DC systems. A manual reset button lets you restore power after a trip without replacing a fuse. The thermoplastic housing meets UL 94V-0 and RoHS requirements. It suits boats, buses, RVs and trucks that need reusable over-current protection.

Blade terminals and plug-in mounting

Blade terminals accept standard ATC fuse-block sockets for a secure plug-in fit. The surface-mount style sits flat on the panel with an overall depth of 9/16 in and overall width of 1 11/16 in. Thermoplastic construction resists vibration and moisture in automotive and marine environments. A 2 kA interrupt rating at 28 V DC handles typical DC fault currents.

Replaces single-use ATC blade fuses

Swapping a blown fuse for this breaker eliminates the need to carry spare fuses and reduces downtime on the road or water. The jump is worth it when a circuit sees occasional overloads that would otherwise consume multiple fuses. It is not for AC circuits, voltages above 28 V DC or applications that require automatic reset behaviour.

Highlights

  • Manual reset protects circuits after overload
  • 25 A rating matches standard ATC fuse footprint
  • 28 V DC operation suits boats, buses, RVs, trucks
  • Thermoplastic housing meets UL 94V-0 flammability standard
  • RoHS compliant and 2 kA interrupt rating at 28 V DC

Specifications

BrandEATON BUSSMANN

Questions about this item

How much DC current can the CB227-25 handle before it trips?

The breaker is rated at 25 A and will interrupt up to 2 kA at 28 V DC.

What panel cut-out or socket does the ATC footprint require?

It plugs into a standard ATC fuse block with blade terminals; overall size is 1 11/16 in wide by 9/16 in deep.

How do you reset the breaker after a trip, and what mistake do installers make?

Push the manual reset button firmly until it clicks; the common error is holding the button down instead of releasing it after the click.

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