Bussmann CB285P-150 Eaton seri...
IN STOCK (leaves warehouse same day if ordered before 3pm ET)
$193.41
$167.09
Image coming soon

Bussmann CB285P-150 Eaton series CB285P marine rated circuit breaker, Switchable, 48 Vdc, 150A, 3 kAIC, Automotive, type III, high amp, Single-pole, Waterproof

(No reviews yet) Write a Review

Model: CB285P-150

In Stock (leaves warehouse same day if ordered before 3pm ET)

$193.41
$167.09
Adding to cart… The item has been added
Free Shipping on orders over $199
We price match and offer bulk discounts! Click Add to Quote. It's quick and easy.
✨
Earn points with this purchase! You can redeem points for giftcards, iPads, XBox's and more. View Rewards
Free Keying on all locks
You may also like

Bussmann CB285P-150 Eaton series CB285P marine rated circuit breaker, Switchable, 48 Vdc, 150A, 3 kAIC, Automotive, type III, high amp, Single-pole, Waterproof.

  • Amp rating: 285 A
  • Interrupt rating: 3 kAIC
  • Product type: Circuit Breaker
  • Dimensions (L x W x H): 1.9 x 1.77 x 2.91 in

Genuine Bussmann part number CB285P-150.

Manufacturer Resources

Product Specs

Amperage Rating:
150 A
Compliances:
RoHS Compliant
Interrupt Rating:
3 kAIC
Mounting Method:
Panel
Number Of Poles:
Single-pole
Packaging Type:
Standard
Product Height:
2.91 in
Product Length Depth:
1.9 in
Product Weight:
.175 lb
Product Width:
1.77 in
Special Features:
Switchable
Voltage Rating:
48 Vdc
Department:
Electrical
Product Material:
Waterproof
Product Type:
Circuit Breaker
Product Group:
Fuses
Product Subgroup:
Automotive Fuses

Bussmann CB285P-150 – Frequently Asked Questions

1) Is the Bussmann CB285P-150 breaker rated for 12V and 24V DC systems, or only 48V?
The CB285P-150 carries a 48 Vdc rating, which covers the common DC bus voltages at or below it, including 12V and 24V vehicle and marine systems. It is a DC-rated device, so don't put it on an AC branch circuit.
2) Can I use this breaker as an on/off battery disconnect switch?
Yes. The CB285P-150 is a switchable type III breaker, so the lever can be thrown manually to open the circuit for service or storage as well as tripping on overload. That's the feature that lets one device do both battery isolation and overcurrent protection on a bow thruster, winch, or inverter feed.
3) Will a Bussmann CB285P-150 hold up in an open bilge or exposed engine bay?
It's built as a waterproof, marine rated breaker, so splash and spray exposure in a bilge, engine compartment, or open truck chassis location is within what it is made for. It is also RoHS compliant if your spec calls that out.
4) How much panel space do I need to mount this 150A marine breaker?
Plan for a panel-mounted footprint of 1.9 x 1.77 x 2.91 inches (L x W x H) plus clearance for the cable lugs and lever travel. It weighs .175 lb, so it doesn't need supplementary bracing beyond the panel itself.
5) Do I need two of these to protect both the positive and negative legs?
No. The CB285P-150 is single-pole, and standard DC practice is to protect the ungrounded positive conductor only. One breaker per positive feeder is the normal install; the negative returns straight to the bus.
6) What is the exact Bussmann part number to order for the 150 amp version?
Order Bussmann CB285P-150. The CB285P series spans several amperages and the suffix is the amp rating, so the -150 is the one that gives you 150A at 48 Vdc.
7) Is this a fuse or a resettable breaker?
It's a resettable circuit breaker, not a one-time fuse. After a trip you reset it with the lever rather than replacing anything, which is why it gets used where a blade or ANL fuse would otherwise mean carrying spares.
How fast can I get the Bussmann CB285P-150 delivered?
Most orders ship the same day from our distribution partners, with quick delivery throughout the continental U.S. Need it urgently? Contact Us for expedited shipping options.
Can I return it if it doesn’t work for me?
Yes—ZenSupply offers a hassle-free return policy. If the product isn’t the right fit, reach out to our support team for a return authorization or setup a return by following our return instructions.
Does the Bussmann CB285P-150 come with a warranty?
Absolutely. The Bussmann CB285P-150 is backed by a manufacturer’s warranty. For full warranty terms, check the product documentation or Contact Us.
How do I get technical support or installation help for the Bussmann CB285P-150?
You can call, text, or email our expert support team for fast answers. We’re here to help with product selection, installation tips, and troubleshooting. Contact Us
Why buy the Bussmann CB285P-150 from ZenSupply?
ZenSupply makes it easy to get the commercial door hardware you need—fast shipping, expert support, and rewards on every order. Our team is always ready to help you choose the right product for your project.
!