AC MCCB

GDM1-125 AC Molded Case Circuit Breaker 3P/4P

Reliable 125A molded case circuit breaker for 400V AC systems. Available in 3P or 4P versions with overload and short-circuit protection for industrial use.

Product Overview

The GDM1-125 AC Molded Case Circuit Breaker (MCCB) is designed to provide reliable protection for AC power distribution systems.
With a rated current of 125A and insulation voltage up to 800V/1000V, it effectively safeguards electrical circuits against overload, short-circuit, and isolation faults.

This 3-pole and 4-pole MCCB is suitable for industrial control panels, distribution boxes, and commercial power systems. Its compact and durable molded case design ensures long-term reliability even in harsh environments.

Product Features

  • ⚙️ Comprehensive Protection: Offers overload, short-circuit, and isolation protection for AC power systems.
  • 🔋 High Voltage Endurance: Supports 400V operational voltage and 800V/1000V insulation for enhanced safety.
  • 🧩 Flexible Configuration: Available in 3P (three-pole) and 4P (four-pole) options for versatile electrical designs.
  • 🧱 Compact Molded Case Design: Ensures space efficiency and easy installation in panel-mounted or OEM systems.
  • 🌍 Stable Performance: Built with high-quality, flame-retardant materials to ensure consistent performance and longevity.

Technical Specifications

ParameterDescription
ModelGDM1-125
TypeAC Molded Case Circuit Breaker
Rated Current125A
Rated Voltage400V AC
Insulation Voltage800V / 1000V
Poles3P / 4P
Frequency50/60Hz
Breaking CapacityUp to 25kA
Trip UnitThermal-Magnetic
Mounting TypePanel Mount / DIN Rail
Operating Temperature-25°C ~ +55°C
ComplianceIEC 60947-2 Standard

Applications

The GDM1-125 MCCB is ideal for power distribution, equipment protection, and industrial automation systems that require high reliability and insulation strength.

Typical Applications Include:

  • Industrial control panels and switchboards
  • Power distribution in factories and workshops
  • HVAC and lighting control systems
  • Motor and generator protection units
  • OEM electrical cabinet integration

Why Choose Us

As a professional MCCB manufacturer and exporter, we specialize in high-performance circuit protection products for industrial and commercial applications.
We ensure every unit meets international quality standards (IEC 60947-2) and supports custom voltage and current configurations.

Our Advantages:

  • ISO-certified production facilities
  • OEM/ODM support with private labeling options
  • Fast delivery and competitive factory pricing
  • Comprehensive quality testing and inspection
  • Global export experience and technical support

Partner with a trusted electrical protection solutions provider to ensure reliable performance and safety across your power systems.

FAQ

What is the Minimum Order Quantity (MOQ)?

The MOQ for the GDM1-125 MCCB is typically 50 pieces, with flexible options for trial or mixed orders.

Is the MCCB available in both 3P and 4P versions?

Yes. The GDM1-125 can be supplied as 3-pole or 4-pole, depending on your electrical system’s configuration.

Can it be used in 400V or 800V systems?

Absolutely. The breaker is rated for 400V operational and 800V/1000V insulation voltage, suitable for demanding industrial applications.

How long is the delivery time?

Standard delivery takes 10–15 working days, depending on order quantity and customization.

Do you offer OEM/ODM branding options?

Yes. We provide custom branding, labeling, and configuration services for OEM customers worldwide.

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