Hamolar 3 Pack 300A Circuit Breaker with Manual Reset Fuse Holder for Car Audio Marine Boat Stereo Switch, with Wire Lugs Copper Washer

Hamolar 3 Pack 300A Circuit Breaker with Manual Reset Fuse Holder for Car Audio Marine Boat Stereo Switch, with Wire Lugs Copper Washer

Q: Can electricity flow in both directions through this circuit breaker - charge and discharge?

It is basically an inline fuse. I have mine with the source being my panels and a fuse placed before going into my charge controller. I am running one unit on both + and - of the solar panel before it goes into charge controller and I also run one unit on both + and - as it exits my charge controller going to the battery bank. using 4 units total. Which direction you wish to direct your electrical current should not mater, if the amps surge it should trip the fuse. Just put it in front of the unit you are trying to protect. In my case protecting solar charger from solar panels before going into solar charge controller and from battery bank before going in to solar charge controller.

Q: Will 3/8"lugs work on this

Yes, use a star washer to secure the larger lug.

Q: what size is recommended for a 3500 watt set up?

Ryan, I do not know if you are talking about pulling 3500 watts DC or if you are connecting and inverter 3500 watt from DC. If you are talking about use a 3500 ac watts inverter, I need to know at whar voltage ia the DC in for the inverter. The amps at 12v , 24v , 36v and 48v are differents, in the inveeter, at higher to increase from DC to AC in the inverter, higher will be the amps it pull from the batteries that can be in serie for those DC voltage. If you are pulling 3500 watts in DC from batteries, just calculate an average of 100 watts per amp. 3500 watts can be 350 amps.

Q: I am looking for a drawing of the hole pattern to incorporate the parts in an assemlby kit. do you have a step file or such of the part.

L 3" x W 1 3/4" H 1 1/4" mounting holes are 1 1/2" diagonal. Make sure you read other people questions just not the reviews. Cheers

4.5/5

Product ID: 445725368

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Details

Brand
Hamolar
Current Rating
300 Amps
Product Dimensions
43D x 49W x
Circuit Breaker Type
Standard
Mounting Type
Panel Mount

⚡300A high current rating

🔋12-48V DC wide voltage range

🛠️Manual reset with push-button kill switch

Frequently Bought Together

Hamolar 3 Pack 300A Circuit Breaker with Manual Reset Fuse Holder for Car Audio Marine Boat Stereo Switch, with Wire Lugs Copper Washer

TKDMR 10pcs 1/0 AWG-3/8 Battery Lugs,Heavy Duty Wire Lugs,Ring Terminals,Battery Cable Ends,0 Guage terminals,Battery Terminal Connectors with 10pcs 3:1 Heat Shrink Tubing

TKDMR 160Pcs Copper Wire Lugs AWG2 4 6 8 10 12 with Heat Shrink Set, 80Pcs Battery Cable Ends Ring Terminals Connectors Tubing Assortment Kit

Description

⚡ Reset, Protect, Dominate – Power Control Made Effortless

POWERHOUSE PROTECTION - Safeguards your amps and batteries from overloads and short circuits with a robust 300A rating.
BUILT TO BRAVE EXTREMES - Operates reliably from -32°C to 82°C, ensuring performance in the harshest environments.
INSTANT RESET CONTROL - Unique push-button manual reset doubles as a kill switch for quick, hassle-free power management.
COMPLETE INSTALLATION KIT - Includes wire lugs and copper washers for a professional, secure panel mount setup.
VERSATILE VOLTAGE COMPATIBILITY - Seamlessly integrates with any 12V, 24V, or 48V DC system—perfect for cars, boats, and RVs.

The Hamolar 3 Pack 300A Circuit Breaker is a heavy-duty, manual reset fuse holder designed for 12-48V DC systems. Engineered to protect amplifiers, batteries, and electrical components from overloads and short circuits, it features a push-button reset that doubles as a kill switch. Built for extreme temperatures and equipped with wire lugs and copper washers, it’s ideal for automotive, marine, and recreational vehicle audio and power systems.

Specifications

Brand	Hamolar
Current Rating	300 Amps
Product Dimensions	43D x 49W x 43H Millimeters
Circuit Breaker Type	Standard
Mounting Type	Panel Mount
Number Of Poles	1
UPC	721703426408
Manufacturer	Hamolar
Item model number	CB5-300A
Manufacturer Part Number	CB5-300A
Voltage	48 Volts, 24 Volts, 12 Volts
Item Weight	110 g

Have a Question? See What Others Asked

Can electricity flow in both directions through this circuit breaker - charge and discharge?

Will 3/8"lugs work on this

what size is recommended for a 3500 watt set up?

I am looking for a drawing of the hole pattern to incorporate the parts in an assemlby kit. do you have a step file or such of the part.

Reviews

4.5

All from verified purchases

D**K

Satisfactory

First order got cancelled and refunded, second time delivered before expected date. Product just put into use. Will update usage after 3 months.

8.04.2024

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