Residual current circuit breakers and RCDs

Residual Current Circuit Breakers and RCDs: Reliable Protection for Your Electrical Network

Residual current circuit breakers (RCBs) and residual current devices (RCDs) are key elements of modern electrical safety. They instantly disconnect the power supply upon detecting a current leak, preventing electric shock and fires due to damaged wiring insulation. These devices are indispensable for protecting both residential and commercial properties, guaranteeing the peace of mind and safety of your family and property.

When choosing RCDs and RCDs, it is important to consider the technical parameters to ensure maximum protection effectiveness:

• Rated Current (A): Selected in accordance with the maximum load of the protected circuit, for example, from 6A for lighting to 125A for high-power consumers.
• Leakage Current (mA): Determines the sensitivity of the device. 10 mA is ideal for rooms with high humidity (baths), 30 mA - for general protection of household sockets, 100-300 mA - for input RCDs.
• Device type (AC, A): Type AC responds only to alternating sinusoidal leakage current, type A - to alternating and pulsating direct current, which is important for modern electronics.
• Number of poles: 2-pole for single-phase networks, 4-pole for three-phase.
• Selectivity: Devices with delayed tripping (type S) are used for step-by-step protection, preventing complete de-energization of the facility.

The Svet-Expert online store offers a wide range of residual current circuit breakers and RCDs from the world's leading manufacturers. We guarantee high product quality, confirmed by an official warranty. Our experts are always ready to help you choose the best solutions for your electrical system. Order from us with fast delivery in Kyiv and throughout Ukraine, receiving reliable protection at competitive prices.