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โก Stay powered, stay protected โ the circuit breaker that means business.
The Bussmann CB185-80 is a high-performance, 80 Amp, 42 Vdc circuit breaker designed for auxiliary and accessory circuits in trucks, buses, RVs, and marine applications. Featuring a flush mount design with a push-to-trip master disconnect button, it offers manual reset capability and a sealed waterproof housing to withstand harsh environments. Engineered to SAE J1171 ignition protection standards and equipped with 1/4-28 threaded studs and SEMS nuts, this breaker ensures reliable, long-lasting circuit protection backed by Bussmannโs 100-year legacy of electrical innovation.









| ASIN | B001PTBVLW |
| Brand | Bussmann |
| Brand Name | Bussmann |
| Circuit Breaker Type | Standard |
| Circuit breaker type | Standard |
| Country Of Origin | Mexico |
| Current Rating | 80 Amps |
| Current rating | 80 Amps |
| Customer Reviews | 4.7 out of 5 stars 115 Reviews |
| Global Trade Identification Number | 00051712614450 |
| Included Components | Unit^Instruction Guide |
| Item Dimensions D x W x H | 48D x 48W x 74H millimeters |
| Item Type Name | Automotive Accessories |
| Item Weight | 0.25 Pounds |
| Manufacturer | Bussmann |
| Model | CB185-80 |
| Mounting Type | Flush Mount |
| Mounting type | Flush Mount |
| Number of Poles | 1 |
| Number of poles | 1 |
| Part Number | CB185-80 |
| Product dimensions | 48D x 48W x 74H millimeters |
| Smart Home Compatibility | Not Smart Home Compatible |
| UPC | 051712614450 |
| Unit Count | 1 Count |
| Voltage | 48 Volts (DC) |
P**L
Works as described
no complaints
L**D
Best bang for your buck
Don't buy other knock offs. Bussmann are the best. From building emergency vehicles to car audio. I have been buying this brand for 15 years and they don't fail. I have had to replace a handful over the years. Y because they got wet and muddy repeatably. And only other time I've seen the fail is if they repeatably trip due to faulty equipment. But they last and are worth the extra couple of bucks. Only downside is they need to offer 200 and 300 amp versions
C**N
Comme attendu
Fait le travail
K**0
Excellent quality and works great!
The Bussmann CB185 80A circuit breaker is a high quality product. I replaced my 50A auto circuit breaker in my 2009 Montana 2980RL 5th wheel that protects my slide circuit. This replacement (upgrade from 50A to 80A) is the recommended fix by the slide manufacturer to prevent the slide operation from tripping the circuit breaker multiple times when trying to retract the slides (ours would trip up to 6-7 times in order to get the slides fully retracted). If you're experiencing this same problem, I highly recommend using this Bussmann circuit breaker. You won't be disappointed.
P**E
Worked good for us
We changed our 50A circuit breaker that came in our RV for this one for the hydraulic system. Before we could get the slides out and maybe start picking up our RV. But now we can run the slides, in and out, auto level and retract all the cylinders and it still works. Before we changed we had to run the generator and sometime even be plugged in to make it work right.
Trustpilot
2 days ago
3 weeks ago