---
product_id: 49108896
title: "MK Electric Sentry 20A Single Pole Type B MCB"
brand: "mk"
price: "€ 22.79"
currency: EUR
in_stock: true
reviews_count: 7
url: https://www.desertcart.hr/products/49108896-mk-electric-sentry-20a-single-pole-type-b-mcb
store_origin: HR
region: Croatia
---

# 20A high current capacity 35mm² tunnel terminals Thermo-magnetic dual protection MK Electric Sentry 20A Single Pole Type B MCB

**Brand:** mk
**Price:** € 22.79
**Availability:** ✅ In Stock

## Summary

> ⚡ Power up your safety game with MK Electric Sentry!

## Quick Answers

- **What is this?** MK Electric Sentry 20A Single Pole Type B MCB by mk
- **How much does it cost?** € 22.79 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/49108896-mk-electric-sentry-20a-single-pole-type-b-mcb)

## Best For

- mk enthusiasts

## Why This Product

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

## Key Features

- • **Compact DIN Rail Mount Design:** Space-saving 1.8 x 7.4 x 8.3 cm footprint fits effortlessly into modern electrical panels.
- • **Robust 35mm² Tunnel Terminals:** Supports heavy-duty wiring for seamless, professional-grade installations.
- • **Secure Lockable Operating Dolly:** Lock the switch On or Off without compromising trip functionality—ultimate control and safety.
- • **Reliable 20A Overcurrent Defense:** Engineered to instantly detect and interrupt overloads, safeguarding your electrical setup.
- • **Dual Thermal & Magnetic Protection:** Combines heat and magnetic sensors for precise, fail-safe circuit breaking.

## Overview

The MK Electric Sentry 20A Single Pole Type B MCB by Honeywell is a compact, thermo-magnetic miniature circuit breaker designed for reliable overcurrent protection. Featuring a 20A rating, lockable operating dolly, and robust 35mm² tunnel terminals, it ensures professional-grade safety and easy installation on DIN rails.

## Description

MK Electric Sentry 20A Single Pole Type B MCB

## Features

- Thermo-magnetic 20A single pole 230V type B miniature circuit breaker
- Designed and engineered using thermal and magnetic elements to detect overcurrents
- Operate and interrupt the supply to prevent damage to the installation
- Features tunnel terminals of 35mm² capacity on all ratings
- Operating dolly may be locked in either the On or Off position without affecting the ability of the trip mechanism

## Technical Specifications

| Specification | Value |
|---------------|-------|
| Manufacturer | Honeywell |
| Part Number | 5920S |
| Product Dimensions | 1.8 x 7.4 x 8.3 cm; 100 g |
| Item model number | 5920S |
| Colour | White |
| Item Package Quantity | 1 |
| Plug profile | DIN Rail Mount |
| Included Components | 1 x MK Electric Sentry 20A Single Pole Type B MCB |
| Batteries included? | No |
| Batteries Required? | No |
| Item Weight | 100 g |

## Product Details

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

## Images

![MK Electric Sentry 20A Single Pole Type B MCB - Image 1](https://m.media-amazon.com/images/I/8112HvT9GbL.jpg)

## Customer Reviews

### ⭐⭐⭐⭐⭐ Good stuff
*by D***N on 15 April 2025*

MCB was good and service was spot on.

### ⭐⭐⭐⭐⭐ Mk mcb
*by M***K on 1 November 2024*

Good quality as with MK works as it should

### ⭐⭐⭐⭐⭐ What you expect from MK
*by D***E on 8 January 2023*

Cost a little more, but fits and works as expected. Well worth the money

## Frequently Bought Together

- MK Electric Sentry 20A Single Pole Type B MCB
- MK Electric Sentry 32A Single Pole Type B MCB
- MK Sentry 5940s - 40a Type B Single Pole MCB

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**Shop now:** [https://www.desertcart.hr/products/49108896-mk-electric-sentry-20a-single-pole-type-b-mcb](https://www.desertcart.hr/products/49108896-mk-electric-sentry-20a-single-pole-type-b-mcb)

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*Product available on Desertcart Croatia*
*Store origin: HR*
*Last updated: 2026-02-20*