Best Type D Circuit Breakers of 2025

Jennifer Fraser Avatar
Jennifer Fraser
Last Updated: 31 Jan 2025

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Type D circuit breakers are an essential component of any electrical system, providing protection against overloading and short circuits. These circuit breakers are designed to handle higher levels of current than their counterparts, making them ideal for use in industrial and commercial applications. They offer reliable performance and are available in a range of sizes to suit different requirements. Type D circuit breakers are a smart investment for anyone looking to ensure the safety and stability of their electrical system.

At a Glance: Our Top Picks

Square D 16 Amp Type B Circuit Breaker Cover #TOP 1
Square D 16 Amp Type B Circuit Breaker
ftb score rating icon 9.9
Square D 20 Amp Type B Circuit Breaker Cover #TOP 2
Square D 20 Amp Type B Circuit Breaker
ftb score rating icon 9.8
SCHNEIDER 20 AMP TYPE D MCB 10kA Cover #TOP 3
SCHNEIDER 20 AMP TYPE D MCB 10kA
ftb score rating icon 9.6

Top 10 Type D Circuit Breakers

#TOP 1

Square D 16 Amp Type B Circuit Breaker

SQUARE D
BS EN 60898
Square D 16 Amp Type B Circuit Breaker Cover
SQUARE D 16 AMP TYPE B 6 KA MCB CIRCUIT BREAKER 220/240V QOE BS EN 60898

The Square D 16 Amp MCB is a reliable circuit breaker designed for various installations, including domestic, commercial, and industrial settings. It features a single pole design, allowing for easy integration into your electrical system. With a breaking capacity rated at 6k amps, it ensures robust protection against overloads. Additionally, its lockable ON or OFF position gives you the convenience of securing the breaker while maintaining its operational capability. This means you can rest assured knowing it will function effectively, even when locked in position.

What We Like
High breaking capacity
Lockable ON/OFF position
Easy installation
Suitable for various settings
#TOP 2

Square D 20 Amp Type B Circuit Breaker

SQUARE D
934175031
Square D 20 Amp Type B Circuit Breaker Cover
SQUARE D 20 AMP TYPE B 6 kA MCB CIRCUIT BREAKER QOE QO120EB6 6000

The Square D QO120EB6 is a 20 Amp Type B single pole circuit breaker, designed with a 6 kA breaking capacity, ensuring reliable protection for your electrical systems. It conforms to BSEN 60898:1991, which guarantees its quality and performance. You can conveniently lock it in either the ON or OFF position, providing peace of mind. This feature allows the device to function even when locked ON, making it suitable for various settings, including domestic, commercial, and industrial use.

What We Like
High breaking capacity
Lockable ON or OFF
Meets BSEN standards
Versatile for multiple settings

SCHNEIDER 20 AMP TYPE D MCB 10kA

SCHNEIDER 20 AMP TYPE D MCB 10kA Cover
SCHNEIDER 20 AMP TYPE D 10kA MCB CIRCUIT BREAKER C60HD 25702 MULTI9

The SCHNEIDER MCB 20 AMP is a reliable circuit breaker designed to protect your electrical system. With a capacity of 20 amps, it ensures that your devices receive the right amount of current, preventing overloads. The C60HD model provides excellent tripping characteristics, offering peace of mind in case of electrical faults. Its 10kA breaking capacity means it can handle high fault currents, ensuring safety and durability. This circuit breaker is a vital component for maintaining a safe electrical environment in your home or workplace.

What We Like
Reliable circuit protection
Prevents electrical overloads
Handles high fault currents
Easy installation
Durable design
#TOP 4

Square D 6A Type B Single Pole MCB

SQUARE D
SQO106EB6
Square D 6A Type B Single Pole MCB Cover
Square D SQO106EB6 6A Type B SP MCB

The Square D 6A MCB is a reliable circuit breaker designed for safety and convenience. With a 6kA breaking capacity, it effectively protects your electrical circuits from overloads. The Type B rating ensures it is suitable for general applications, making it versatile for various uses. It can be locked in both ON and OFF positions, providing you with peace of mind as you can ensure safety during maintenance. Additionally, the prong type "plug on" busbar attachment simplifies installation, allowing you to set it up quickly and efficiently.

What We Like
High breaking capacity
Lockable ON/OFF position
Easy installation
Versatile for various applications
#TOP 5

Square D 6 Amp Type B Circuit Breaker

Square D Qwikline
QO106EB6
Square D 6 Amp Type B Circuit Breaker Cover
SQUARE D 6 AMP TYPE B 6KA MCB CIRCUIT BREAKER SINGLE POLE 240V QOE QO106EB6

The Square D QO106EB6 is a reliable 6 Amp Type B single pole miniature circuit breaker (MCB) designed to protect your electrical circuits. With a breaking capacity of 6kA, it ensures safety against overloads and faults. You will appreciate the ability to lock the device in the ON or OFF position, providing added convenience and security. This MCB conforms to BSEN 60898: 1991 standards, making it suitable for domestic, commercial, and industrial applications. Its robust design ensures that your electrical systems remain protected at all times.

What We Like
High breaking capacity
Lockable ON/OFF position
Complies with safety standards
Versatile for various applications
#TOP 6

Square D 32A Type B Single Pole MCB

SQUARE D
SQO132EB6
Square D 32A Type B Single Pole MCB Cover
Square D SQO132EB6 32A Type B SP MCB

The Square D 32A MCB is a reliable circuit breaker designed to enhance your electrical safety. It features a 32A capacity and a 6kA breaking capacity, which means it can handle significant electrical loads while protecting your circuits from overloads. Additionally, it conforms to the BSEN 60898: 1991 standard, ensuring its quality and performance. The lockable ON or OFF position provides you with the flexibility to secure it during maintenance or when it is not in use, giving you peace of mind.

What We Like
High breaking capacity
Lockable ON/OFF position
Standard compliance
Easy installation
#TOP 7

Square D 16Amp Type B Circuit Breaker

SQUARE D
Dom16B6
Square D 16Amp Type B Circuit Breaker Cover
Square D DOM16B6 16a Type B Single Pole MCB

The Square D 16Amp MCB is a reliable circuit breaker designed to protect your electrical circuits. With its 16Amp capacity, it effectively prevents overloads and short circuits, ensuring your home or business remains safe. This Type B circuit breaker is ideal for general applications, providing peace of mind that your devices are safeguarded from electrical faults. Additionally, its robust design ensures durability, making it a long-lasting choice for any electrical system.

What We Like
Reliable circuit protection
Prevents overloads
Durable construction
Ideal for general use
#TOP 8

Square D 50 Amp Type B MCB Circuit Breaker

Square D 50 Amp Type B MCB Circuit Breaker Cover
Square D DOM50B6 - 50a Type B Single Pole MCB

The Square D 50 Amp MCB is designed to provide reliable protection for your electrical circuits. With a rated current of 50 Amps and a trip unit characteristic of Type B, it ensures safety by tripping at the right moments. It operates at a voltage of up to 240 V AC, making it versatile for various applications. The breaking current of 6 kA offers additional reassurance against overloads. You can also lock it in the ON or OFF position, providing you with peace of mind when performing maintenance or adjustments.

What We Like
High breaking current capacity
Lockable for safety
Suitable for domestic use
Complies with safety standards
#TOP 9

Merlin Gerin 32 Amp Type D MCB

Merlin Gerin 32 Amp Type D MCB Cover
MERLIN GERIN C60HD 32 AMP TYPE D 10KA 240V SINGLE POLE MCB CIRCUIT BREAKER 25704

The Merlin Gerin MCB is a robust 32 Amp Type D single pole circuit breaker designed for various applications, including domestic, commercial, and industrial use. With a 10kA breaking capacity, it ensures reliable protection against electrical faults, providing peace of mind for users. Its compliance with BSEN 60898: 1991 standards guarantees quality and safety. Additionally, the MCB can be locked in the ON or OFF position, allowing you to maintain control while ensuring it operates correctly, even when locked ON.

What We Like
High breaking capacity
Lockable ON/OFF position
Complies with safety standards
Suitable for various applications
#TOP 10

Heschen HSB6C-DC Photovoltaic Circuit Breaker

HSB6C-DC
Grey
Heschen HSB6C-DC Photovoltaic Circuit Breaker Cover
Heschen DC Miniature Circuit Breaker, HSB6C-DC, 2 Poles, DC500V 125A, Photovoltaic Circuit Breaker, for Solar PV System Solar Panels Grid System, 35mm DIN Rail Mounting

The Heschen HSB6C-DC Breaker is designed for solar PV systems, offering a current rating of 125A to handle substantial electrical loads efficiently. With a rated voltage of DC500V, it ensures compatibility with high-voltage applications, providing peace of mind. The breaking capacity of 8KA makes it reliable for protecting your system from overloads, thereby enhancing safety. Additionally, its 2-pole configuration allows for versatile installations, making it convenient for various setups.

What We Like
High current rating
Suitable for high-voltage applications
Reliable overload protection
Versatile installation options
Buying Guide Image
Editor's Notes

During our type d circuit breaker research, we found 70 type d circuit breaker products and shortlisted 10 quality products. We collected and analyzed 2,095 customer reviews through our big data system to write the type d circuit breakers list. We found that most customers choose type d circuit breakers with an average price of £6.66.

The type d circuit breakers are available for purchase. We have researched hundreds of brands and picked the top brands of type d circuit breakers, including SQUARE D, Schneider Electric, Square D Qwikline, Heschen. The seller of top 1 product has received honest feedback from 356 consumers with an average rating of 4.8.

Written by
Jennifer Fraser Avatar

Jennifer Fraser is a licensed contractor specializing in sales, maintenance, and kitchen, bathroom, and home appliances, tools, and utilities. She owns a store in Leeds where you can get any home and tool appliance. Jenny has a degree in literature, but she combines her knowledge and experience with her degree to publish DIY articles on solving home appliances issues to keep up the family enterprise.