---
product_id: 54369125
title: "Crabtree 61/B20 Miniature Circuit Breaker (MCB) - 20amp Type B"
brand: "crabtree"
price: "€ 16.05"
currency: EUR
in_stock: true
reviews_count: 7
category: "Crabtree"
url: https://www.desertcart.pt/products/54369125-crabtree-61-b20-miniature-circuit-breaker-mcb-20amp-type-b
store_origin: PT
region: Portugal
---

# 20A high current capacity DIN rail mounting for easy install B Curve trip for precise protection Crabtree 61/B20 Miniature Circuit Breaker (MCB) - 20amp Type B

**Brand:** crabtree
**Price:** € 16.05
**Availability:** ✅ In Stock

## Summary

> ⚡ Power up your safety with precision and style!

## Quick Answers

- **What is this?** Crabtree 61/B20 Miniature Circuit Breaker (MCB) - 20amp Type B by crabtree
- **How much does it cost?** € 16.05 with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.pt](https://www.desertcart.pt/products/54369125-crabtree-61-b20-miniature-circuit-breaker-mcb-20amp-type-b)

## Best For

- crabtree enthusiasts

## Why This Product

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

## Key Features

- • **Trusted Crabtree Quality:** Backed by a reputable brand with proven durability and performance
- • **Compact Single-Pole Design:** Space-saving solution ideal for modern electrical panels
- • **Reliable 20 Amp Power Control:** Handles up to 20A to safeguard your circuits with confidence
- • **Effortless DIN Rail Installation:** Streamlined mounting system for quick, professional setup
- • **Precision B Curve Trip Technology:** Protects sensitive electronics with accurate thermal-magnetic response

## Overview

The Crabtree 61/B20 Miniature Circuit Breaker is a 20 Amp, single-pole device designed for reliable circuit protection. Featuring B Curve trip technology and easy DIN rail mounting, it offers precise, space-efficient safeguarding for residential and commercial electrical systems. Trusted by professionals, it ensures dependable performance and peace of mind.

## Description

Crabtree Magneto-Thermal Circuit Breaker, Starbreaker B Curve Series, 20A, 1 pole, 230 VAC, DIN Rail.

Review: Does the job - Not much to say, it does the job intended. Good price & next day delivery.
Review: Five Stars - Genuine part, just the job

## Features

- Starbreaker B Curve Series
- 20A
- 1 pole
- 230 VAC

## Technical Specifications

| Specification | Value |
|---------------|-------|
| ASIN | B009ETYUO0 |
| Best Sellers Rank | 249,432 in DIY & Tools ( See Top 100 in DIY & Tools ) 426 in Circuit Breakers |
| Brand | Crabtree |
| Circuit Breaker Type | Standard |
| Circuit breaker type | Standard |
| Current Rating | 20 Amps |
| Current rating | 20 Amps |
| Customer Reviews | 4.1 out of 5 stars 27 Reviews |
| Manufacturer | Crabtree |
| Manufacturer Part Number | S61/B20 |
| Model Number | 61/B20 |
| Mounting Type | DIN Rail Mount |
| Mounting type | DIN Rail Mount |
| Number of Poles | 1 |
| Number of items | 1 |
| Number of poles | 1 |
| Smart Home Compatibility | Not Smart Home Compatible |
| Unit Count | 1.0 count |

## Product Details

- **Brand:** Crabtree
- **Circuit breaker type:** Standard
- **Current rating:** 20 Amps
- **Mounting type:** DIN Rail Mount
- **Number of poles:** 1

## Images

![Crabtree 61/B20 Miniature Circuit Breaker (MCB) - 20amp Type B - Image 1](https://m.media-amazon.com/images/I/51DKpqi2mxL.jpg)

## Customer Reviews

### ⭐⭐⭐⭐⭐ Does the job
*by A***E on 6 October 2020*

Not much to say, it does the job intended. Good price & next day delivery.

### ⭐⭐⭐⭐⭐ Five Stars
*by K***F on 6 October 2015*

Genuine part, just the job

### ⭐ Part sold by Prime Electrical Group Ltd is NOT new
*by C***N on 27 July 2021*

There is no way the MCB I received sold by Prime Electrical Group Ltd is new. There are marks on it for starters, broken plastic around the lower terminal, and the terminal itself is bent upwards. These are pretty sturdy components so I don't believe this has happened in storage or transit. Buyers beware!

## Frequently Bought Together

- Crabtree 61/B20 Miniature Circuit Breaker (MCB) - 20amp Type B
- Crabtree 61/B16 Miniature Circuit Breaker (MCB) -16amp Type B

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**Shop now:** [https://www.desertcart.pt/products/54369125-crabtree-61-b20-miniature-circuit-breaker-mcb-20amp-type-b](https://www.desertcart.pt/products/54369125-crabtree-61-b20-miniature-circuit-breaker-mcb-20amp-type-b)

---

*Product available on Desertcart Portugal*
*Store origin: PT*
*Last updated: 2026-10-27*