Schneider Electric is the first choice for all of your circuit breaker and equipment needs. We offer the largest selection in the industry, from the latest NSXm Moulded Case Circuit Breaker (MCCB) to the high-current Masterpact Air Circuit Breaker (ACB) range. Our products deliver the reliability and performance that you and your customers expect.

A circuit breaker is a safety device that interrupts abnormal current flow to protect electrical systems from damage. Unlike fuses, which must be replaced after operation, circuit breakers can be reset and used multiple times, providing long-term protection and control. They are essential for preventing equipment damage and ensuring user safety across residential, commercial, and industrial settings.

Working principle of a circuit breaker:

• Consists of two key contacts: moving and fixed
• When closed, current flows through the contacts under spring pressure
• During a fault, the trip coil energises, separating the contacts to interrupt current
• Electromagnets or bimetallic strips trigger the switch mechanism when current reaches unsafe levels

Types of circuit breakers and protection devices:

• Moulded Case Circuit Breakers (MCCBs) — protect cables sized for 100A to 3200A with high breaking capacities; ideal for industrial applications and energy management
• Switch Disconnectors — combine the properties of a breaker and load switch; low-maintenance, durable, and cost-efficient
• Earth Leakage Protection — residual current relays and devices detect stray voltages and cut circuits to prevent fire and electric shock; Vigirex range ensures comprehensive protection
• Motor Circuit Breakers and Switches — prevent damage to motors and wiring; Compact NS80H MA designed for motor protection up to 37kW, with disconnector switches available up to 1250A

Benefits of Schneider Electric circuit breakers:

• Reliable protection against overloads, short circuits, and leakage currents
• Reusable safety mechanism compared to single-use fuses
• Advanced designs for residential, commercial, and industrial use
• Wide range of models, including MCCBs, ACBs, and motor protection breakers
• Proven quality and performance backed by over 65 years of expertise

With Schneider Electric circuit breakers, you can ensure the safety, reliability, and efficiency of your electrical systems while benefiting from innovative technology and unmatched experience in power distribution.