Circuit Breakers

Looking for the best circuit breaker for residential use? A circuit breaker is a crucial component of any electrical system, designed to protect against electrical overloads and short circuits. Horme Hardware carries an enormous variety of circuit breakers. There are various types of circuit breakers, including the MCB breaker (miniature circuit breaker), the MCCB breaker (molded case circuit breaker), and the RCCB breaker (residual current circuit breaker).

A circuit breaker, also known as an electric breaker, is an electrical switch designed to protect circuits from damage caused by short circuits, overcurrent, or overloaded circuits.

The basic function is to prevent current from flowing after the protection relay detects a fault. Each circuit breaker served a different purpose. It is designed so that when an overcurrent is detected, a mechanism is activated that essentially interrupts the circuit.

A MCB (miniature circuit breaker) is a type of electrical switch designed to protect electrical circuits from overcurrents and short circuits. It is a critical safety device used in residential, commercial, and industrial electrical distribution systems. MCBs are compact and can fit on standard DIN rails in distribution panels, making them easy to install and replace. MCBs are essential safety devices that protect electrical circuits and equipment from damage due to excessive currents. They play a vital role in protecting against electrical hazards and ensuring the safe and reliable operation of electrical systems.

MCCB (Molded Case Circuit Breaker) is a type of circuit breaker used to protect electrical circuits and equipment from overcurrents, short circuits, and other electrical faults. MCCBs are commonly used in low-voltage electrical distribution systems and can handle higher current ratings than miniature circuit breakers (MCBs).

A RCCB (Residual Current Circuit Breaker) is a type of circuit breaker that cuts off the electricity supply immediately upon detecting leakages that may result in an electric shock.

Note: Singapore has mandated the installation of residual current circuit breakers (RCCBs) in all Housing Board (HDB) flats and private dwellings by July 1, 2025. Non-compliance may result in a fine of $5,000. HDB said it will cover the installation and rewiring cost for one- and two-room flats built in and before July 1985, while those staying in larger flats will get a subsidy of up to 95 per cent.

You can find great deals on circuit breakers from the best-selling brands like Schneider & ABB, whom you know you can trust for high-quality circuit breakers. Other circuit breakers can also be found here in the Horme Hardware Webstore, Singapore's leading online DIY hardware supplier for circuit breakers.