Best MK Circuit Breakers of 2025

The MK Electric Sentry MCB is a thermo-magnetic miniature circuit breaker designed to ensure safety in your electrical installations. It detects overcurrents effectively, which helps prevent damage to your home’s electrical system. Additionally, the device can operate and interrupt the supply, providing peace of mind and reliability. With tunnel terminals of 35mm² capacity, you can connect your wiring easily and securely. The ability to lock the operating dolly in the On or Off position adds convenience, allowing you to maintain control without compromising the trip mechanism.

The MK Sentry 20A MCB is a thermo-magnetic miniature circuit breaker designed to protect your electrical installations. It effectively detects overcurrents, ensuring that the power supply is interrupted to prevent potential damage. This model features tunnel terminals with a 35mm² capacity, making it easy to connect and secure. Additionally, the operating dolly can be locked in either the On or Off position, providing flexibility while maintaining the trip mechanism's effectiveness. This ensures your system remains safe and reliable.

The MK Sentry 5940s MCB is a dependable circuit breaker designed for your electrical safety needs. With a 40a capacity, it operates at 240vac and boasts a breaking capacity of 6kA, ensuring reliable protection against overloads and faults. As a part of the Sentry fourth generation, it conforms to the BSEN 60898: 1991 standard, giving you peace of mind in performance. Additionally, it features a lockable mechanism that allows you to secure it in either the on or off position, providing added convenience and safety for your electrical systems.

The MK LN5930 Fuse Switch is designed for optimal safety in electrical circuits. With a breaking capacity rated at 6kA, it provides robust protection against overloads and short circuits, ensuring that your electrical systems remain safe. This product conforms to BS 3871 Pt 1: 1965 standards, giving you peace of mind regarding its reliability and quality. As a Type 2 device, it offers compatibility with older installations, making it easy for you to replace outdated units with confidence.

The MK Sentry 40A MCB is a reliable miniature circuit breaker designed to protect your electrical installations. Its thermo-magnetic operation detects overcurrents, preventing potential damage to your systems. You will appreciate the convenience of the tunnel terminals, which accommodate 35mm² capacity for all ratings, simplifying your installation process. Additionally, the operating dolly can be locked in either the On or Off position, ensuring that you can maintain control without compromising the trip mechanism's functionality.

The MK Sentry Circuit Breaker offers a robust solution with its 100A and 30mA rating, ensuring safety in your electrical installations. It is compliant with the 18th Edition, giving you peace of mind that it meets the latest safety standards. Designed as a 2-pole unit, it features a single pole and neutral configuration, making it easy to integrate into your existing system. With a single-phase operation at 230V, this circuit breaker is perfect for various domestic and commercial applications, enhancing your electrical safety.

The MK 6 AMP Circuit Breaker is designed for effective electrical protection in your home or office. With a 6 Amp rating, it ensures that circuits are safeguarded against overloads, providing peace of mind. Being a Type 2 breaker, it is ideal for use in various applications, offering versatility. The M6 specification allows for easy installation in standard setups, making it convenient for you to enhance your electrical safety with minimal effort.

The MK 16A MCB is a reliable circuit breaker designed to enhance your electrical safety. With its Type 2 tripping curve, it ensures that your circuits are protected from overloads and short circuits. The device conforms to BS 3871: Pt1: 1965 standards, providing you with peace of mind. Its 6 kA breaking capacity ensures that it can handle significant fault currents, helping to prevent damage to your electrical system. Finally, being DIN rail mounted allows for easy installation and organisation within your electrical setup.

The MK Sentry MCB is a reliable circuit breaker with a rated current of 40 Amp, ensuring your electrical systems are well-protected. Its Type B trip unit characteristic makes it ideal for domestic, commercial, and industrial installations, giving you peace of mind. Operating at a rated voltage of 240V AC and a breaking current of 6 kA, this breaker can handle unexpected surges effectively. Additionally, its lockable feature allows you to secure it in either the on or off position, providing you with flexibility and safety during maintenance.

The MK Sentry 10A MCB is a reliable solution for protecting your electrical installation. It features a thermo-magnetic design that detects overcurrents, ensuring that your system is safeguarded from potential damage. By automatically interrupting the supply when necessary, it helps maintain the safety of your appliances. The product also includes tunnel terminals capable of accommodating 35mm² wiring, making installation straightforward. Additionally, the operating dolly can be locked in either position, offering you flexibility without compromising safety.