Circuit Breaker

UL Certified Circuit Protection Solutions for North American Market Our American-style circuit breakers are designed and manufactured to comply with US electrical standards, widely used in residential load centers, commercial distribution panels and industrial power systems. We provide reliable over current, short-circuit and overload protection.Contact Now！

Mertal Circuit Breaker Product Purchase For Industry Clients

Mertal Electrical INC provides a Comprehensive Range of Circuit Breaker Purchase designed for Residential, Commercial And Industrial Power Applications.

UL listed plug-in circuit breakers

Overload protection: Automatically cuts off power when sustained overcurrent occurs to prevent wire overheating. Short-circuit protection: Instantly trips under short-circuit conditions to safeguard wiring and electrical equipment. Manual isolation: Acts as a switch for power on/off and creates a safe isolation gap during equipment maintenance.

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Power Transmission & Distribution Product Customized for Your Market

Tell us your project requirements and specifications. Our team will help you select the right product and provide a fast quotation.

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Power Distribution Circuit Breaker Sourcing

Mertal Electrical INC Circuit Breaker are designed to meet diverse residential, commercial and utility applications.

Overload Protection
Automatically cuts off the circuit when continuous overcurrent occurs, preventing wire overheating and insulation damage caused by long-term overload operation, avoiding electrical fire risks.
Short Circuit Protection
Instantly trips to disconnect the power supply under short-circuit conditions with huge instantaneous current. It effectively protects electrical wires, distribution equipment and terminal loads from severe damage.
Manual On/Off & Isolation Function
Works as a controllable switch for daily circuit power supply switching. When equipment needs maintenance, it can cut off the power to form a safe isolation gap, ensuring construction and maintenance safety.

Solutions for Different Electrical Applications

Circuit Breaker solutions for dependable electrical metering and service entrance applications.

Your Reliable Power Distribution product Purchase Partner

Mertal focuses on electrical metering, power distribution and wiring products for customers North American Market

we work closely with distributors, electrical brands, contractors and project customers to deliver products that meet demanding electrical applications.

Our transmission and distribution product range covers key components used in overhead lines, distribution networks, substations, service entrances, and electrical infrastructure.

We help customers build safer, more reliable and more competitive electrical product portfolios.

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Cooperative Suppliers Testimonials

Mertal provides reliable electrical products for power metering, distribution and connection applications.

The UL circuit breakers work perfectly and match our load centers well. Stable tripping performance, reliable quality.

Electrical Contractor

boss

Fast sample delivery and professional technical support. We are satisfied with the consistent product quality for bulk orders.

Electrical Distributor

Technical Specialist

AFCI & GFCI dual function breakers meet our North American project requirements. Good pricing and responsive communication.

OEM / Project Buyer

sale

Cooperative suppliers and cooperative customers

Mertal partners with North American distributors and panel builders. Our UL certified circuit breakers support residential and commercial projects. We offer samples, and stable supply to help clients expand their local electrical business.

01

Electrical Contractor

We highly recommend Mertal as our trusted circuit breaker supplier.** Their UL-listed breakers match our load centers perfectly. Consistent quality and stable tripping performance help us pass local electrical inspections smoothly.

02

Electrical Distributor

Mertal’s AFCI & GFCI dual function breakers are our top pick for residential projects.** They fully meet North American NEC requirements. The team provides fast technical support and flexible OEM service, which saves us a lot of project time.

03

OEM / Project Buyer

We have partnered with Mertal for years and would recommend their circuit breakers to any North American distributor.Products are well tested, lead time is reliable, and their one-stop power distribution solution makes procurement much easier.

Frequently asked questions

What is the difference between MCB, AFCI and GFCI breakers?

MCB (Standard Circuit Breaker): Basic overcurrent and short-circuit protection, used for general lighting and power circuits.
GFCI: Focuses on ground leakage protection, specially designed for wet areas such as kitchens, bathrooms and outdoors to prevent electric shock accidents.
AFCI: Detects dangerous arc faults in wires, effectively avoiding electrical fires caused by aging wiring and poor contact, suitable for residential living areas and bedrooms.

Are your American circuit breakers UL and CSA certified?

Yes. All our American-style circuit breakers comply with North American electrical standards. The products have passed UL489, UL943, UL1699 and CSA certification, fully meeting residential, commercial and industrial electrical installation requirements in the US and Canada.

What are the types of American circuit breakers in terms of installation?

We provide two mainstream installation types for North American markets:
• Plug-in type: Easy and fast installation, widely used in household standard distribution boxes.
• Bolt-on type: Firm fixed connection, high stability and impact resistance, suitable for commercial and industrial heavy-duty power systems.

What current specifications and poles do you support?

Miniature circuit breakers cover 10A–60A, and main circuit breakers support 80A–200A. Conventional poles include 1P, 2P and 3P, which can meet single-phase and three-phase power distribution needs of different scenarios. Custom current specifications are acceptable for bulk orders.

Can AFCI and GFCI breakers be used universally?

No. They have different protection targets and application scenarios. GFCI is dedicated to anti-electric shock protection in wet environments, while AFCI is dedicated to anti-arc fire protection. We also provide dual-function AFCI+GFCI breakers, which integrate two protection functions and are applicable to new residential standard wiring systems.