Technical FAQs 4

Where can I buy a circuit breaker in Singapore?

You can find great deals on circuit breakers from the best-selling brands like & , 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.

What is a RCCB (residual current circuit breaker)?

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.

What is a MCB breaker?

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.

Are residual current circuit breakers mandatory in Singapore?

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.

Microgrid & Energy Storage Technical Resources


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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:

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