SERVICE CONTINUITY

Type A residual current protection

Type A residual current protection is a key element in ensuring electrical safety in installations. It is designed to detect earth leakage currents in both alternating current and pulsating DC currents generated by electronic loads commonly found in industrial, commercial and service-sector installations.

Circutor’s solutions provide effective protection, safeguarding both people and the installation itself against earth leakage currents and insulation faults. Thanks to their high reliability and super-immunized design, Type A RCDs maintain continuity of supply in the presence of non-hazardous leakage currents and leakage currents with high harmonic content, while also preventing nuisance trips caused by transient effects, minimizing electrical risk without compromising continuity of service.

SERVICE CONTINUITY

Type B residual current protection

Type B residual current protection is a key element in ensuring electrical safety in installations with loads that may produce DC leakage currents. It is designed to protect both people and equipment in circuits where there is a risk of earth leakage involving direct current (DC), alternating current (AC), pulsating AC, or mixed leakage currents comprising both AC and DC components. These types of leakage currents are common in electronic loads used throughout industrial, commercial and service-sector installations.

Type B residual current protection is used as a universal solution for protecting loads such as variable speed or frequency drives, inverters, cold storage systems, HVAC systems, UPSs and electric vehicle charging equipment.