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Miniature Circuit Breakers
Our MCB series stands as a cornerstone of electrical safety, engineered to deliver consistent overload and short-circuit protection across residential, commercial, and industrial environments. Compliant with global standards, these circuit breakers adapt seamlessly to AC 50/60Hz systems, offering versatile solutions for diverse voltage and current requirements.
CNC MCB
The YCB7-125N Miniature Circuit Breaker (MCB) is designed for AC 50/60Hz circuits with rated voltage up to 400V and rated current ranging from 10A to 125A, providing overload and short-circuit protection. Suitable for industrial, commercial, high-rise, and residential applications.
Core Specs:
Compliance: IEC 60947-2, IEC 60898-1.
Poles: 1P/2P/3P/4P.
Rated voltage: AC230V/400V (1P/2P), AC400V (3P/4P).
Thermo-magnetic release: Type C (8In) or D (12In).
Insulation voltage: 500V; impulse withstand voltage: 6kV.
Installation: DIN rail EN 60715 (35mm).
About CNC Electric
CNC Electric was founded in 1988 with the launch of our inaugural molded case circuit breakers — marking the beginning of our journey in power solutions. With a focus on product development and manufacturing, we reorganized into a corporate group by 1995 and introduced our first full low-voltage series, earning a reputation for rugged reliability.
Many of our products are CE, TUV, and RoHS certified, ensuring reliability and compliance. We focus on both efficient production and environmental responsibility, integrating sustainable practices into our processes.
Solution
We provide our customer with profitable growth by offering integrated comprehensive electrical solution.
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Global supply chain support with competitive pricing for large quantity orders. Dedicated account managers and flexible delivery terms.
WhatsApp: +8618958711903 E-mail: [email protected]OEM Partnership
Custom manufacturing solutions tailored to your brand requirements with strict quality control and confidential production.
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FAQ
1. What is a Miniature Circuit Breaker?
A Miniature Circuit Breaker (MCB) is an automatic electrical protection device designed to cut off power supply when detecting overloads or short circuits in low-voltage circuits (up to 1000V). It ensures safety for home, commercial, and industrial electrical systems.
2. What is the difference between a mini circuit breaker and a RCD?
- MCB: Protects circuits from overloads and short circuits by tripping when current exceeds safe limits.
- RCD (Residual Current Device): Detects earth leakage (e.g., human contact with live wires) and cuts power to prevent electric shock. Often combined as RCBO (MCB + RCD) for dual protection.
3. What is MCB and MCCB?
- MCB (Miniature Circuit Breaker): Compact, for low-current applications (≤125A), used in homes/offices.
- MCCB (Molded Case Circuit Breaker): Larger, for high-current systems (up to 2500A), designed for industrial machinery and heavy-duty circuits.
4. What are mini breakers used for?
MCBs protect electrical circuits in residential, commercial, and light industrial settings. Common uses: lighting systems, power outlets, small appliances, and HVAC units.
5. What types of MCB are available?
Types include B-type (low inrush, lighting), C-type (moderate inrush, motors), D-type (high inrush, transformers), and pole configurations (1P, 2P, 3P, 4P).
6. What is the lead time for MCB orders?
Lead time varies by region: typically 1–2 weeks for standard models. Custom orders may take 3–4 weeks. Contact sales for exact timelines.
7. Do you support OEM for MCB products?
Yes, we offer OEM services, including custom branding, packaging, and specifications tailored to your needs.
8. What certifications do your MCBs have?
Our MCBs comply with global safety standards (e.g., IEC, CE) to ensure reliability and regulatory compliance.
9. How to contact a distributor for MCB purchases?
For local distributor info or bulk inquiries, please contact our sales team via email ([email protected]) or WhatsApp (+86 18958711903).
