Product Overview
The GDL7-63 AC Miniature Circuit Breaker (MCB) is designed to provide overload and short-circuit protection in AC electrical circuits up to 400V. With a rated current up to 63A and breaking capacity up to 10kA, this compact breaker ensures safe and reliable power distribution for both industrial control panels and residential electrical systems.
Engineered for high performance and long service life, this AC MCB features a thermo-magnetic trip mechanism and B, C, D curve characteristics to meet a wide range of application requirements.
Product Features
- Wide Range of Ratings – Available in 1P, 2P, and 4P versions up to 63A for flexible system design.
- High Breaking Capacity – Rated at 6000A / 10000A, ensuring dependable protection under fault conditions.
- Compact DIN Rail Design – Easy to install on 35mm EN60715 rail, suitable for space-limited control cabinets.
- Thermo-Magnetic Trip Curves (B, C, D) – Offers accurate and fast protection against overload and short-circuits.
- Durable and Safe Construction – IP20 protection class with contact position indicator for operational safety.
- Extended Service Life – With 10,000 mechanical and 8,000 electrical operations, built for industrial-grade reliability.
Technical Specifications
| Parameter | Description |
|---|---|
| Type | GDC3-63 |
| Rated current (In) | 10A, 16A, 20A, 25A, 32A, 40A, 50A, 63A |
| Pole | 1P, 2P, 4P |
| Rated voltage (Ue) | 1P: 250V, 2P: 500V, 4P: 1000V |
| Insulation voltage (Ui) | 1000V |
| Rated frequency | 50/60Hz |
| Rated breaking capacity | 6000A / 10000A |
| Impulse withstand voltage (Uimp) | 6kV |
| Dielectric test voltage (1 min) | 2kV |
| Thermo-magnetic release characteristic | B, C, D |
| Electrical life | 8,000 operations |
| Mechanical life | 10,000 operations |
| Contact position indicator | YES |
| Protection class | IP20 |
| Reference temperature | 30°C |
| Ambient temperature | -5°C to +40°C |
| Storage temperature | -25°C to +70°C |
| Terminal connection type | Cable / U-type busbar / Pin-type busbar |
| Terminal size | 25mm²; 18–3 |
| Tightening torque | 2.5 N·m |
| Mounting | DIN rail EN60715 (35mm) |
| Connection | Top and bottom |
Applications
The GDL7-63 AC MCB is widely used in industrial automation, residential distribution panels, and commercial electrical systems. It ensures stable protection for circuits operating under 230V or 400V AC.
Typical Applications:
- Electrical protection in control cabinets and lighting systems
- Industrial machinery and motor control circuits
- Power distribution in commercial buildings
- Residential and apartment electrical panels
- OEM and panel builder applications
Why Choose Us
As a trusted AC miniature circuit breaker manufacturer and supplier, we provide OEM/ODM customization, strict quality control, and fast delivery to global customers.
Our products meet IEC/EN standards and are widely exported to Europe, the Middle East, and Asia, offering durable performance for both residential and industrial applications.
We are committed to providing reliable electrical protection solutions with competitive pricing and professional technical support.
FAQ
What is the minimum order quantity (MOQ)?
Our standard MOQ is 100 units per model, but trial orders for new clients are welcome.
Can I request OEM branding or packaging?
Yes, we offer custom logo printing, packaging design, and label customization.
How long is your delivery time?
Generally 15–25 working days after order confirmation, depending on quantity and model.
What certifications do your AC MCBs have?
Our products comply with IEC/EN standards and can be supplied with CE, CB, or TUV certificates.
Can I get samples before placing a bulk order?
Yes, samples are available for performance testing and quality evaluation.
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