Ignitions and Electrical› Wiring Components

Rockford Fosgate

140 Amp Circuit Breaker

$74.99

SKU: RFCB140

In Stock
In Stock
Ships by Sep 9
Free Shipping over $200
$100 Minimum Order
30 Days Return
INSTALL DIFFICULTY
DIY PRO SHOP

Easy — 1–2 hours

Overview

The Rockford Fosgate RFCB140 is a 140 amp circuit breaker designed to protect your car audio system from electrical shorts. It features platinum plating and a low-resistance, high-current ability.

This circuit breaker has set screw style connections, eliminating the need for ring terminals. It supports multiple wire gauge inputs and outputs, including 1/0 AWG and 4 AWG. The RFCB140 is manually resettable and comes with a 1-year warranty.
Show original supplier description
The Rockford Fosgate RFCB140 is a 140-amp circuit breaker engineered to safeguard your car audio system from potential electrical shorts and overloads. Its platinum-plated construction ensures durability, while the low-resistance, high-current design facilitates efficient power delivery. This unit offers versatile installation with set screw style connections, negating the need for traditional ring terminals. It accommodates multiple wire gauge sizes for both input and output, specifically supporting 1/0 AWG and 4 AWG wires. The circuit breaker features a manual reset function, allowing for easy restoration of power after an event, and is backed by a 1-year warranty for peace of mind.

Product descriptions are provided by our supplier partners and may not always be perfectly accurate. Not sure this fits? or call (760) 282-4645 and we’ll verify before you order.

Fitment

Fitment Guaranteed

Don’t gamble
on fit.

Log your build in the MOTORMIA app and we’ll guarantee this part fits your exact setup — or your money back, return shipping covered.

Available on iOS & Android

Specifications

BrandRockford Fosgate
Part NumberRFCB140
CategoryIgnitions and Electrical

We’re here — turning wrenches, just like you.

Call us, follow along, or come say hi.

(760) 282-4645 Instagram Google

Buy with Confidence

Returns & Fitment

Built for enthusiasts. Every order is backed by our 30 day return window on eligible items. Unused and uninstalled products may be returned with approved RMA and no restocking fees when received in new condition. Orders placed through the MOTORMIA app with a complete build qualify for our Fitment Guarantee — free return shipping if the part doesn’t fit your exact setup. The guarantee covers fit only; installation must follow manufacturer instructions, and we recommend a qualified shop for parts marked Difficulty 4–5.

View Full Return Policy

Shipping

Orders are processed in 1–3 business days. In stock parts ship promptly from our partner network. Special-order items either aren’t currently stocked or are built to your spec — expect 4–6 weeks. If a part goes on backorder while your order is in the queue, we’ll reach out and work through discounted alternatives together.

Free shipping over $200 in the continental US. Alaska, Hawaii, U.S. territories (Puerto Rico, U.S. Virgin Islands, Guam, American Samoa, and the Northern Mariana Islands), and international orders carry surcharges — most appear at checkout. Some exceptions (LTL freight, or suppliers who quote freight only after we place the order) won’t. In those cases we’ll reach out with the exact charge before your order moves forward.

View Full Shipping Policy