Miniature Circuit Breaker (MCB)
MCBs, essential for circuit protection in residential and commercial applications.
- Conforms to IEC60898-1 / IEC60947-2 standards Conforms to IEC60898-1 / IEC60947-2 standards
- Rated voltage range from 240V to 415V Rated voltage range from 240V to 415V
- Available with B, C, and D tripping curves Available with B, C, and D tripping curves
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Family Catalog
Miniature Circuit Breaker (MCB) SKU Pages
This family belongs to Modular DIN Rail Products. Open a product detail page below for detailed specifications, files, and inquiry access.
Family Overview
Selection And Application Context
Our Miniature Circuit Breakers (MCBs) are designed for robust and reliable performance in diverse electrical environments. These essential protective devices are engineered to safeguard circuits from both overloads and short circuits, ensuring the integrity of your electrical infrastructure. Each MCB is built for DIN-rail mounting, facilitating straightforward installation and integration into existing or new distribution boards and electrical panels.
We offer MCBs with rated voltages ranging from 240V to 415V and compatible with 50Hz to 60Hz frequencies, accommodating various regional electrical specifications. Our product line includes options with B, C, and D tripping curves to match specific application requirements: B curves (3-5xIn) for resistive loads, C curves (5-10xIn) for general-purpose protection, and D curves (10-20xIn) for high inrush current loads.
With an electrical and mechanical life of 10,000 cycles and an IP20 degree of protection, our MCBs are constructed for durability and consistent operation. We support ODM and private label manufacturing, providing flexible solutions for OEM panel builders and electrical contractors seeking high-quality, standards-compliant circuit protection devices. Our focus is on delivering components that meet the rigorous demands of residential distribution boards and commercial building electrical panels.
Selection Guide
How to choose the right modular protection device
Use this guide to narrow down the product family by protection function, installation type, and special requirements.
Step 2: Choose installation type
Step 3: Choose special function
Step 4: Choose control or accessories
Select one option in each step to preview matched products.
Feature
Why choose our MCB?
Conforms to IEC60898-1 / IEC60947-2 standards
Conforms to IEC60898-1 / IEC60947-2 standards
Rated voltage range from 240V to 415V
Rated voltage range from 240V to 415V
Available with B, C, and D tripping curves
Available with B, C, and D tripping curves
Designed for DIN-rail mounting
Designed for DIN-rail mounting
Use Cases
Typical Applications
Residential distribution boards
Best for homes and basic distribution boards.
Commercial building electrical panels
Best for offices and commercial electrical panels.
OEM panel builder solutions
Best for industrial control panels and OEM integration.
General electrical circuit protection
Suitable for low-voltage distribution and panel integration projects.
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TDM3 Miniature Circuit Breaker (MCB)
TDM3 is part of the Miniature Circuit Breaker (MCB) range for modular low-voltage distribution systems. The model family includes 4 variant option(s) to support practical project selection.
240/415V / 50/60Hz / 1-63A
Best for: Final distribution boards in residen... / Commercial branch circuit protection
[Drawing]
TDM4 Miniature Circuit Breaker (MCB)
TDM4 is part of the Miniature Circuit Breaker (MCB) range for modular low-voltage distribution systems. The model family includes 4 variant option(s) to support practical project selection.
240/415V / 50/60Hz / 1-63A
Best for: Final distribution boards in residen... / Commercial branch circuit protection
[Drawing]
TDM5-125 Miniature Circuit Breaker (MCB)
TDM5-125 is part of the Miniature Circuit Breaker (MCB) range for modular low-voltage distribution systems. The model family includes 4 variant option(s) to support practical project selection.
240/415V / 50/60Hz / 63-125A
Best for: Final distribution boards in residen... / Commercial branch circuit protection
[Drawing]
TDM4-125 Miniature Circuit Breaker (MCB)
TDM4-125 is part of the Miniature Circuit Breaker (MCB) range for modular low-voltage distribution systems. The model family includes 4 variant option(s) to support practical project selection.
240/415V / 50/60Hz / 63-125A
Best for: Final distribution boards in residen... / Commercial branch circuit protection
[Drawing]
TDM3-125 Miniature Circuit Breaker (MCB)
TDM3-125 is part of the Miniature Circuit Breaker (MCB) range for modular low-voltage distribution systems. The model family includes 4 variant option(s) to support practical project selection.
240/415V / 50/60Hz / 63-125A
Best for: Final distribution boards in residen... / Commercial branch circuit protection
[Drawing]
TDM5 Miniature Circuit Breaker (MCB)
TDM5 is part of the Miniature Circuit Breaker (MCB) range for modular low-voltage distribution systems. The model family includes 4 variant option(s) to support practical project selection.
240/415V / 50/60Hz / 1-63A
Best for: Final distribution boards in residen... / Commercial branch circuit protection
[Drawing]
TDM7 Miniature Circuit Breaker (MCB)
TDM7 is part of the Miniature Circuit Breaker (MCB) range for modular low-voltage distribution systems. The model family includes 4 variant option(s) to support practical project selection.
240/415V / 50/60Hz / 1-63A
Best for: Final distribution boards in residen... / Commercial branch circuit protection
FAQ
Frequently Asked Questions
What is a Miniature Circuit Breaker (MCB)?
An MCB is an electromechanical device designed to protect an electrical circuit from overcurrent, which can result from an overload or short circuit. It automatically switches off the...
What are the common tripping curves for MCBs?
MCBs typically come with B, C, or D tripping curves. B-curve MCBs trip quickly for small overloads, suitable for resistive loads. C-curve MCBs are general-purpose, tripping for moderate...
What standards do your MCBs comply with?
Our Miniature Circuit Breakers are manufactured to comply with international standards IEC60898-1 and IEC60947-2, ensuring their quality and performance for various applications.
Can these MCBs be used in both residential and commercial settings?
Yes, our MCBs are suitable for a wide range of applications, including residential distribution boards, commercial building electrical panels, and industrial control systems, providing essential circuit protection.
Do you offer customization or private label options for MCBs?
Yes, we provide ODM and private label manufacturing support for Miniature Circuit Breakers, allowing businesses to offer products under their own brand specifications.
Project Inquiry
Need Reliable Circuit Protection?
Contact Engineer today to discuss your Miniature Circuit Breaker requirements and receive a tailored quote.
Not sure which model to choose? Talk to an engineer
Visual References
Family Gallery
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INDUSTRIAL INTEGRITY
STANDARD COMPLIANCE
All components meet IEC 60947-2 and CE certification standards. ISO 9001:2015 certified manufacturing.
OEM/ODM CAPABILITIES
Custom electrical configurations and private labeling for global infrastructure projects.
ENGINEERING ASSETS
Immediate access to 2D/3D CAD models, STEP files, and detailed technical datasheets.
REQUIRE CUSTOM SPECIFICATIONS?
Consult with our lead engineers for a specialized BOM or system architecture review.