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Black plastic MAXI-type automotive circuit breaker with blade terminals, automatic reset, 30 A rating

Bussmann

Bussmann CB1911-30 Automotive Circuit Breaker 30 A

SKU CH-Q8C7-3RPHH

Plug-in 30 A circuit breaker with automatic reset fits MAXI fuse footprint for boats, buses, RVs and trucks

  • Automatic reset restores power without manual replacement
  • 30 A rating protects 14 V DC circuits
  • 150 A interrupt capacity handles fault currents safely
  • MAXI Type I footprint fits existing fuse blocks
  • RoHS compliant thermoplastic housing meets environmental standards

30 A Automotive Circuit Breaker

This Bussmann CB1911-30 is a MAXI Type I automatic-reset circuit breaker rated for 30 A at 14 V DC. It plugs directly into a MAXI fuse footprint and carries a 150 A interrupt rating for short-circuit protection. The thermoplastic housing fits boats, buses, RVs and trucks.

Suits DC accessory circuits needing automatic

Installers protecting lighting, winch or auxiliary loads on 14 V systems will appreciate the self-resetting action after a fault clears. Buyers who need a manual-reset or non-resettable fuse for one-time over-current events should look at something else. The breaker does not support higher-voltage or AC applications.

Simple plug-in installation

The blade terminals press into an existing MAXI fuse block with no tools or wiring changes required. Automatic reset restores power once the overload is removed, eliminating the need to carry spare fuses. Verify that the panel cut-out matches the MAXI footprint before ordering.

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 nameEATON BUSSMANN

Questions about this item

What fuse-block footprint must my vehicle already have to accept this MAXI Type I circuit breaker?

The breaker uses a standard MAXI fuse footprint, so the panel must provide a matching MAXI blade socket.

Will the automatic reset interfere with older 14 V DC wiring that remains in the circuit?

No, the device is rated for 14 V DC systems and an interrupt capacity of 150 A at that voltage, matching legacy automotive circuits.

How can I confirm the breaker is operating correctly after installation?

Apply a load above 30 A; the breaker should trip and then automatically reset once the overload is removed.

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