---
product_id: 450675571
title: "DC Circuit Breaker 2P 20Amp 12V 24V 36V 48V DC MCB Short Circuit Protection Disconnect Switch Isolator for Solar Panel Battery UPS Inverter Photovoltaic PV System"
brand: "dihool"
price: "€ 23.30"
currency: EUR
in_stock: true
reviews_count: 13
category: "Dihool"
url: https://www.desertcart.nl/products/450675571-dc-circuit-breaker-2p-20amp-12v-24v-36v-48v-dc
store_origin: NL
region: Netherlands
---

# 20A rated current 12-240V DC voltage range 4kA breaking capacity DC Circuit Breaker 2P 20Amp 12V 24V 36V 48V DC MCB Short Circuit Protection Disconnect Switch Isolator for Solar Panel Battery UPS Inverter Photovoltaic PV System

**Brand:** dihool
**Price:** € 23.30
**Availability:** ✅ In Stock

## Summary

> 🛠️ Power up your solar setup with confidence and style!

## Quick Answers

- **What is this?** DC Circuit Breaker 2P 20Amp 12V 24V 36V 48V DC MCB Short Circuit Protection Disconnect Switch Isolator for Solar Panel Battery UPS Inverter Photovoltaic PV System by dihool
- **How much does it cost?** € 23.30 with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.nl](https://www.desertcart.nl/products/450675571-dc-circuit-breaker-2p-20amp-12v-24v-36v-48v-dc)

## 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

- • **Dual-Pole Power Shield:** Protects both positive & negative poles for total system safety
- • **Modular DIN Rail Ready:** Snap-on installation for sleek, professional setups
- • **Built to Last & Perform:** 10,000 mechanical cycles & 4,000 electrical cycles reliability
- • **Magnetic Arc Extinguisher:** Advanced magnetic system tames tough DC arcs effortlessly
- • **Solar & Battery Optimized:** Engineered for solar panels, batteries, UPS & hybrid systems

## Overview

The DZ47B-63 2P 20A DC Circuit Breaker offers robust short circuit and overload protection across a wide 12-240V DC range. Featuring a magnetic arc extinguishing system and modular DIN rail mounting, it’s engineered for solar, battery, and hybrid power systems. With a 4kA breaking capacity and durable design rated for 10,000 mechanical cycles, it ensures reliable, professional-grade safety for your renewable energy installations.

## Description

Model: DZ47B 2P 20A Rated Operating Voltage : DC12V-240V Poles: 2P Rated Current: 20A breaking capacity: 4 kA Ics=Icu Trip Curve: B Mechanical Life: 10,000 times Electrical Life: 4,000 times Installation Method: 35MM DIN Rail Standard: IEC60898 / GB10936 Operating Temperature: -30℃ to +70℃ Operating Altitude: 2000 MeterCircuit Breaker Purchase Instructions The cause of the circuit breaker fire 1. The current is high and the cable is thin, and the cable heats up and causes a fire 2. Poor contact, the screws of the circuit breaker are not tightened, causing the screw part of the circuit breaker to heat up and catch fire (90% of the fire causes) Note: Be sure to tighten the screws -- important!!! 3. The quality of circuit breakers is poor. Our company selects A-level standard materials and flame-retardant shells for production. Each product is tested, and the quality pass rate reaches 99.5%. 4. Dust enters, humid environment; the circuit breaker is not waterproof and dustproof, try to use it in a waterproof box. Note：If you find that the screw part of the circuit breaker is burned, 99% of it is because the screw is not tightened How to choose the current of the circuit breaker The current of the circuit breaker needs to be 20% larger than the working current. If the working current is 20A, Please choose 25A circuit breaker. If choose 20A, the circuit will trip and power off

Review: Great for campervan 12v DC solar circuits. - Working well in my campervan solar power installation. Used the 2 pole switch a a breaker for the solar panel before it goes to the charge controller and several single pole switches on the positive lines of various appliances and for protecting the leisure battery. All clipped on to a length of DIN rail. Each box includes a small strip of DIN rail and some screws but I chose to install a longer rail to hold all the switches. I can recommend this item for campervan solar installations as it has a reasonable build quality, low price, and B curve trip characteristic is suited to this type of installation.
Review: Great DC breaker - Great for the price I'll use again

## Features

- Model: DZ47B-63; Rated Current: 20A; Rated Voltage: 12-240V; Breaking capacities:4kA; 2 Pole DC breaker:Protect The Postive And Negative Pole
- ARC EXTINGUISHING: DC arc extinguishing is more difficult than AC. This DC mini circuit breaker has a magnetic system to assist arc extinguishing.
- Easy Installation: Modular sturcture, can be easily installed on the DIN standard guide rail in distribution box, bistable locking clip.
- as solar breaker,battery breaker Widely used for solar panel grid system, wind and solar hybrid system and other DC circuit system from damage caused by excess current resulting from an overload or short circuit. 12V-30V Without Short Circuit Protection, 32-240V With Short Circuit Protection
- Size: 36MM x 80MM x 75MM, Fit for 35mm DIN rail.

## Technical Specifications

| Specification | Value |
|---------------|-------|
| ASIN | B09VYKHBLM |
| Batteries Required? | No |
| Batteries included? | No |
| Best Sellers Rank | 5,066 in DIY & Tools ( See Top 100 in DIY & Tools ) 1 in Circuit Breakers |
| Colour | DC12V-240V 2P |
| Customer Reviews | 4.6 4.6 out of 5 stars (216) |
| Date First Available | 18 Mar. 2022 |
| Included components | Circuit Breaker*1;Din rail mount*1;terminal*4 |
| Item Weight | 190 g |
| Item model number | DZ47B 63 |
| Manufacturer | DIHOOL |
| Part number | DHO-DZ47B-2P-20A |
| Plug profile | DIN Rail Mount |
| Product Dimensions | 3.6 x 3.6 x 7.5 cm; 190 g |
| Shape | DC12V-240V 2P |
| Voltage | 240 Volts |

## Product Details

- **Brand:** DIHOOL
- **Circuit breaker type:** Standard
- **Current rating:** 20 Amps
- **Mounting type:** DIN Rail Mount
- **Product dimensions:** 36D x 36W x 75H millimetres

## Images

![DC Circuit Breaker 2P 20Amp 12V 24V 36V 48V DC MCB Short Circuit Protection Disconnect Switch Isolator for Solar Panel Battery UPS Inverter Photovoltaic PV System - Image 1](https://m.media-amazon.com/images/I/61KKOmfJ5WL.jpg)

## Available Options

This product comes in different **Item Shape, Lens Color** options.

## Customer Reviews

### ⭐⭐⭐⭐⭐ Great for campervan 12v DC solar circuits.
*by U***R on 12 February 2026*

Working well in my campervan solar power installation. Used the 2 pole switch a a breaker for the solar panel before it goes to the charge controller and several single pole switches on the positive lines of various appliances and for protecting the leisure battery. All clipped on to a length of DIN rail. Each box includes a small strip of DIN rail and some screws but I chose to install a longer rail to hold all the switches. I can recommend this item for campervan solar installations as it has a reasonable build quality, low price, and B curve trip characteristic is suited to this type of installation.

### ⭐⭐⭐⭐⭐ Great DC breaker
*by E***H on 20 February 2026*

Great for the price I'll use again

### ⭐⭐⭐⭐⭐ Solar isolator
*by T***D on 22 February 2026*

Good product and fast delivery

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**Shop now:** [https://www.desertcart.nl/products/450675571-dc-circuit-breaker-2p-20amp-12v-24v-36v-48v-dc](https://www.desertcart.nl/products/450675571-dc-circuit-breaker-2p-20amp-12v-24v-36v-48v-dc)

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*Product available on Desertcart Netherlands*
*Store origin: NL*
*Last updated: 2026-03-19*