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Small black rectangular circuit breaker with blade terminals and manual reset button

Bussmann

Bussmann CB227-20 circuit breaker 20 A 28V DC

SKU CH-RYM6-A82WB

A 20 A manual-reset breaker with a plug-in ATC footprint rated for 28 V DC circuits

  • 20 A rating protects 28 V DC circuits
  • Manual reset restores power without replacing a fuse
  • Plug-in ATC footprint fits standard fuse blocks
  • Thermoplastic housing meets UL 94V-0 flammability standard
  • RoHS compliant construction suits boats, buses, RVs and trucks

What this breaker is

The Bussmann CB227-20 is a Type III ATC-footprint circuit breaker rated at 20 A and 28 V DC. It mounts by plugging into a standard ATC fuse block and uses a manual reset button to restore power after a trip.

Who it suits and who it does not

This device fits boats, buses, RVs and trucks that use ATC fuse panels and need a resettable alternative to a blade fuse. Installations that require an automatic-reset breaker, a higher interrupt rating than 2 kA, or a different footprint should look elsewhere.

What the bundled items change

The breaker ships as a single unit with no extra hardware or software. Its thermoplastic housing meets UL 94V-0 flammability requirements and RoHS compliance, so the installer only needs a compatible fuse block and wiring.

Highlights

  • 20 A rating protects 28 V DC circuits
  • Manual reset restores power without replacing a fuse
  • Plug-in ATC footprint fits standard fuse blocks
  • Thermoplastic housing meets UL 94V-0 flammability standard
  • RoHS compliant construction suits boats, buses, RVs and trucks

Specifications

BrandEATON BUSSMANN

Questions about this item

What ATC fuse panel footprint does the CB227-20 plug into?

The CB227-20 uses a Type III ATC footprint, so it fits any standard ATC fuse block or panel that accepts that blade style.

Can I leave my existing ATC fuse block in place when I install this breaker?

Yes, the CB227-20 is a direct plug-in replacement for an ATC fuse, so the original fuse block stays and the breaker seats in the same slots.

How do I confirm the breaker has tripped and reset it?

The reset type is manual; after a trip the actuator moves to the open position and you push it back in to restore the circuit.

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