I use 4/0 cable and the lugs are 1 inch wide, will they fit? The correct answer is NO the widthe of the opening is 11/16 not 3/4 as used on the 4/0 c

i had to use a dremel with a zip bit to make room for the 4/0 lugs

Inverter Manufacturer says I need a 400Amp Breaker between my battery and low frequency inverter! 1-pole I assume?

2 pole is safer, as it interrupts both cables. I have had 2 units of the 400amp single pole fuse open (no current) without ever tripping. I would not trust these units with anywhere near their rated current, which makes them useless as a breaker. Just a giant switch....

What does it mean when it says no short circuit protection at 12-32v? It sounds non-functional.

Correct. They are no good as actual breakers, better off with a knife switch and fusible links!

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DIHOOL Heavy Duty Battery Disconnect Switch, 300 Amp DC Circuit Breaker for Power Station Solar System

DIHOOL Heavy Duty Battery Disconnect Switch, 300 Amp DC Circuit Breaker for Power Station Solar System

Product ID: 449799650

Details

Brand
DIHOOL
Circuit Breaker Type
Standard
Current Rating
300 Amps
Mounting Type
Screw Mount
Product Dimensions
5.91"D x x

⚡300 Amp heavy-duty current

🔋12V-400V versatile voltage range

🛠️Front-accessible easy installation

€ 147.73

Duties & taxes included

In stock

Sold byAmazon CyprusDelivered byDesertcartCustomer service byDesertcartReturns14 days · 30 with PRO

Buyer Protection · Full refund if your order doesn't arrive as described.

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Description

⚡ Cut the power, not the performance — stay in control with DIHOOL!

ROBUST RELIABLE - Built to handle heavy-duty 300 Amp currents ensuring uninterrupted power management.
TRUSTED TOP RANKED - Highly rated with 4.8 stars and a top 15 rank in automotive circuit breakers—join the elite users.
POWERHOUSE PROTECTION - Thermal magnetic trip safeguards your system from overload and short circuits.
EFFORTLESS FRONT ACCESS - Designed for quick, hassle-free installation and maintenance right from the front panel.
VERSATILE VOLTAGE MASTERY - Operates seamlessly from 12V up to 400V DC, perfect for solar, UPS, and datacenter setups.

The DIHOOL Heavy Duty Battery Disconnect Switch is a 300 Amp DC circuit breaker designed for high-demand applications like solar power stations, UPS, and datacenters. Featuring thermal magnetic trip technology, it protects against overloads and short circuits across a wide voltage range (12V-400V). Its compact, front-accessible design ensures easy installation and maintenance, making it a reliable choice for professionals seeking robust power isolation and circuit protection.

Specifications

ASIN	B09P4RSPYY
Best Sellers Rank	#7,219 in Automotive ( See Top 100 in Automotive ) #12 in Automotive Replacement Circuit Breaker Switches
Brand Name	DIHOOL
Circuit Breaker Type	Standard
Current Rating	300 Amps
Customer Reviews	4.8 4.8 out of 5 stars (174)
Included Components	termianl
Item Dimensions D x W x H	5.91"D x 7.87"W x 5.51"H
Item Weight	1.52 Kilograms
Manufacturer	DIHOOL ELECTRIC
Model	DHM1B-2P-300A
Mounting Type	Screw Mount
Number of Poles	2
Part Number	DHM1B-2P-300A
Voltage	400 Volts

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Our prices include the product cost, international shipping, import duties, customs clearance, and local delivery charges. We handle all customs and import procedures, ensuring there are no hidden fees upon delivery. PRO members receive additional benefits including free shipping.

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TrustScore 4.5 | 7,300+ reviews

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€ 147.73

Duties & taxes included

In stock

Sold byAmazon CyprusDelivered byDesertcartCustomer service byDesertcartReturns14 days · 30 with PRO

Buyer Protection · Full refund if your order doesn't arrive as described.

Desertcart purchases this item on your behalf and handles shipping, customs, and support to Cyprus.

Secure transaction

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TrustScore 4.5 | 7,300+ reviews

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