---
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: "€ 27.44"
currency: EUR
in_stock: true
reviews_count: 6
url: https://www.desertcart.com.cy/products/450675571-dc-circuit-breaker-2p-20amp-12v-24v-36v-48v-dc
store_origin: CY
region: Cyprus
---

# 20A rated current 12-240V wide 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:** € 27.44
**Availability:** ✅ In Stock

## Summary

> 🛠️ Power up your system with confidence — Breaker that means business!

## 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?** € 27.44 with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.com.cy](https://www.desertcart.com.cy/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

- • **Built to Last:** 10,000 mechanical & 4,000 electrical cycles ensure long-term durability
- • **Plug & Play DIN Rail:** Modular design for quick, secure installation on standard rails
- • **Dual-Pole Power Shield:** Protects both positive & negative poles for ultimate safety
- • **Solar-Ready Reliability:** Engineered for solar, battery & hybrid DC systems with robust overload defense
- • **Magnetic Arc Extinguisher:** Advanced magnetic system tames tough DC arcs effortlessly

## Overview

The DZ47B-63 2P 20A DC Circuit Breaker offers a broad 12-240V range and a strong 4kA breaking capacity, designed specifically for solar panels, batteries, UPS, and photovoltaic systems. Featuring a magnetic arc extinguishing system and easy DIN rail installation, it safeguards both poles against overloads and short circuits, ensuring reliable, long-lasting protection in demanding DC environments.

## 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

## 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 |
|---------------|-------|
| Manufacturer | DIHOOL |
| Part number | DHO-DZ47B-2P-20A |
| Item Weight | 190 g |
| Product Dimensions | 3.6 x 3.6 x 7.5 cm; 190 g |
| Item model number | DZ47B 63 |
| Colour | DC12V-240V 2P |
| Shape | DC12V-240V 2P |
| Voltage | 240 Volts |
| Plug profile | DIN Rail Mount |
| Included components | Circuit Breaker*1;Din rail mount*1;terminal*4 |
| Batteries included? | No |
| Batteries Required? | No |

## Product Details

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

## 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

### ⭐⭐⭐⭐⭐ 5.0 out of 5 stars







  
  
    Does the job well
  

*by D***. on Reviewed in the United Kingdom on 19 July 2023*

Ordered as circuit breaker/isolator to sit between 2 160W solar panels and Epever solar controller on my narrowboat solar setup. Good design with track supplied so easy to install. Easy access terminal slots so no issues with cables and connectors supplied in separate packet. Ensure cable firmly gripped to 'spade end' connector so doesn't pop out. Easy to operate manually, have not had a 'forced' disconnect yet. Recommended.

### ⭐⭐⭐⭐⭐ 5.0 out of 5 stars







  
  
    Great Value high amp DC breaker
  

*by J***R on Reviewed in the United Kingdom on 10 July 2023*

I think this breaker is great...Current has only gotten to 97a so far so breaker hasn't been tripped but it carries the current fine. Use inline with my 2500w 24v electric outboard.(Technically it should draw 105ah) For lower rated breakers Iv'e always used hager as they are all dc/ac rated aswell

### ⭐⭐⭐⭐⭐ 







  
    Elektronik
  
  

*by A***E on Reviewed in Germany on 23 January 2023*

Tut was er soll, auch der Preis ist o.k

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

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*Product available on Desertcart Cyprus*
*Store origin: CY*
*Last updated: 2026-02-21*