---
product_id: 449799650
title: "DIHOOL Heavy Duty Battery Disconnect Switch, 300 Amp DC Circuit Breaker for Power Station Solar System"
brand: "dihool"
price: "₩168804"
currency: KRW
in_stock: true
reviews_count: 8
url: https://www.desertcart.kr/products/449799650-dihool-heavy-duty-battery-disconnect-switch-300-amp-dc-circuit
store_origin: KR
region: South Korea
---

# 300A Power Circuit Protection Easy Install DIHOOL Heavy Duty Battery Disconnect Switch, 300 Amp DC Circuit Breaker for Power Station Solar System

**Brand:** dihool
**Price:** ₩168804
**Availability:** ✅ In Stock

## Summary

> 🔋 Power Up Your Peace of Mind!

## Quick Answers

- **What is this?** DIHOOL Heavy Duty Battery Disconnect Switch, 300 Amp DC Circuit Breaker for Power Station Solar System by dihool
- **How much does it cost?** ₩168804 with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.kr](https://www.desertcart.kr/products/449799650-dihool-heavy-duty-battery-disconnect-switch-300-amp-dc-circuit)

## Best For

- dihool enthusiasts

## Why This Product

- Trusted dihool brand quality
- Free international shipping included
- Worldwide delivery with tracking
- 15-day hassle-free returns

## Key Features

- • **User-Friendly Design:** Front-accessible installation for hassle-free setup.
- • **Thermal Magnetic Trip:** Advanced protection against overloads and shorts.
- • **Versatile Voltage Range:** Compatible with 12V-30V and 32-400V systems.
- • **Unmatched Power Handling:** 300 Amp capacity for robust performance.
- • **Ideal for Diverse Applications:** Perfect for solar, UPS, and datacenter needs.

## Overview

The DIHOOL Heavy Duty Battery Disconnect Switch is a high-performance 300 Amp DC circuit breaker designed for solar power systems and other DC applications. It features thermal magnetic trip technology for superior overload and short circuit protection, ensuring your systems run safely and efficiently. With a versatile voltage range and easy front-access installation, this switch is perfect for professionals looking to enhance their power management solutions.

## Description

Full description not available

## Features

- Function: Thermal Magnetic Trip, circuit overload protection, isolation circuit, circuit short circuit protection;12V-30V Without Short Circuit Protection, 32-400V With Short Circuit Protection
- Easy installation of electrical accessories in compartments and that too accessible from the front
- Suitable for DC application such as photovoltaic / UPS / battery / Datacenter etc.
- Size: 73MMx163MMx86MM

## Product Details

- **Brand:** DIHOOL
- **Current Rating:** 300 Amps
- **Product Dimensions:** 5.91"D x 7.87"W x 5.51"H
- **Circuit Breaker Type:** Standard
- **Mounting Type:** Screw Mount

## Images

![DIHOOL Heavy Duty Battery Disconnect Switch, 300 Amp DC Circuit Breaker for Power Station Solar System - Image 1](https://m.media-amazon.com/images/I/61S1E91WrtL.jpg)

## Available Options

This product comes in different **Lens Color** options.

## Questions & Answers

**Q: Hello, is it possible to select the off position manually?**
A: Yes ,it is possible

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

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

**Q: What does it mean when it says no short circuit protection at 12-32v?  It sounds non-functional.**
A: Correct. They are no good as actual breakers, better off with a knife switch and fusible links!

## Customer Reviews

### ⭐⭐⭐⭐⭐ Great DC breakers
*by R***H on May 26, 2025*

We buy these all the time off of Amazon I've had zero issues with any of the breakers. They're all installing industrial equipment the clients love how they look and work so I guess I love how they look and work

### ⭐⭐⭐⭐⭐ Good quality
*by B***H on May 10, 2025*

Sturdy build and performs as intended!

### ⭐ Protecciones DIHOOL
*by Y***O on April 22, 2025*

Estas protecciones me salieron pesimanete mal, no operan con 48V y cuando dejas en OFF te deja pasar voltaje...

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**Shop now:** [https://www.desertcart.kr/products/449799650-dihool-heavy-duty-battery-disconnect-switch-300-amp-dc-circuit](https://www.desertcart.kr/products/449799650-dihool-heavy-duty-battery-disconnect-switch-300-amp-dc-circuit)

---

*Product available on Desertcart South Korea*
*Store origin: KR*
*Last updated: 2026-02-09*