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What is a low-voltage circuit breaker?

2025-10-25

Low-Voltage Circuit Breaker: Global-Grade Electrical Safety Guard

What is a mcb?
As a leading manufacturer, our low-voltage circuit breakers (LVCBs) are the first line of defense for electrical safety, tailored for global industries, commercial buildings, and homes.

What It Is

An auto-interrupt device for abnormal conditions (overload/short circuit/undervoltage). Reusable (no replacement like fuses) , operating at AC 230V-1000V/DC 12V-1500V (covers most low-voltage systems).

Key Protective Functions

  1. Overload Protection: Cuts current to avoid wire overheating.
  2. Short-Circuit Protection: Responds in ms to reduce fire/equipment damage.
  3. Voltage Protection: Shuts off for undervoltage/overvoltage (protects sensitive devices).
  4. Manual Control: Easy toggle/rotary switch for maintenance/emergencies.

Core Technical Advantages

  • High Breaking Capacity: Up to 150kA (handles extreme currents for industrial use).
  • Energy-Saving: Low resistance cuts power loss, meets sustainability goals.
  • Durable: Flame-retardant materials, 10,000+ operations, IP20/IP40 rated.
  • Global Certifications: IEC 60898, UL 489, CSA C22.2 No.5, GB 10963.1 (fits EU/NA/Asia markets).
Versatile Applications
Perfect for:
Industrial: Manufacturing plants, data centers (protects motors, generators)
✅Commercial: Malls, hotels (manages lighting, HVAC, elevators)                                                                                                                                                             
✅Residential: Homes/apartments (paired with distribution boxes)
✅Renewable Energy: Solar/wind systems (guards inverters, energy storage)

Why Choose Us?

  • Customizable: Tailored current, terminals, auxiliary functions.       
  • Reliable Supply: On-time delivery via global logistics.
  • After-Sales: 1-year warranty + technical support/installation guidance.
Contact us for details or samples!