---
product_id: 54369125
title: "Crabtree 61/B20 Miniature Circuit Breaker (MCB) - 20amp Type B"
brand: "crabtree"
price: "€ 33.68"
currency: EUR
in_stock: true
reviews_count: 7
category: "Crabtree"
url: https://www.desertcart.hr/products/54369125-crabtree-61-b20-miniature-circuit-breaker-mcb-20amp-type-b
store_origin: HR
region: Croatia
---

# 20A high current rating 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:** € 33.68
**Availability:** ✅ In Stock

## Summary

> ⚡ Protect your power, power your protection!

## Quick Answers

- **What is this?** Crabtree 61/B20 Miniature Circuit Breaker (MCB) - 20amp Type B by crabtree
- **How much does it cost?** € 33.68 with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.hr](https://www.desertcart.hr/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

- • **B Curve Trip Technology:** Protects sensitive electronics with fast, accurate response.
- • **Trusted Crabtree Quality:** Industry-standard durability trusted by professionals.
- • **Compact Single-Pole Design:** Saves space without compromising on performance.
- • **Effortless DIN Rail Mounting:** Streamlines installation for a clean, professional setup.
- • **Reliable 20 Amp Power Control:** Handles your essential circuits with precision and safety.

## 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 ensures precise, fast response to electrical faults while fitting seamlessly into professional electrical setups.

## 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 | 146,316 in DIY & Tools ( See Top 100 in DIY & Tools ) 251 in Circuit Breakers |
| Brand | Crabtree |
| Circuit Breaker Type | Standard |
| Current Rating | 20 Amps |
| Customer Reviews | 4.1 4.1 out of 5 stars (27) |
| Manufacturer | Crabtree |
| Manufacturer Part Number | S61/B20 |
| Model Number | 61/B20 |
| Mounting Type | DIN Rail Mount |
| 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.hr/products/54369125-crabtree-61-b20-miniature-circuit-breaker-mcb-20amp-type-b](https://www.desertcart.hr/products/54369125-crabtree-61-b20-miniature-circuit-breaker-mcb-20amp-type-b)

---

*Product available on Desertcart Croatia*
*Store origin: HR*
*Last updated: 2026-05-25*