Siemens SENTRON 5SV3 RCCBs, type A/AC

Residual current circuit breakers (RCCBs) enhance electrical safety by quickly disconnecting power when they detect a current imbalance, preventing electric shocks and fires. They are essential in both residential and commercial electrical installations.

The Siemens SENTRON 5SV3 RCCBs, type A/AC, meet the criteria of Siemens’ recently introduced EcoTech label. ‘TECHNYL 4EARTH C 52G1 V25 CR GY 2747’ is the material used for most parts of the covers and housings of the RCCBs, which are produced in high quantities.

Developed by DOMO Chemicals for Siemens applications, TECHNYL 4EARTH is a polyamide 6 (PA6) material that incorporates recycled content. It is UL certified, and uses a phosphorous- and halogen-free flame-retardant system. The material has good moulding and electrical properties, making it suitable for demanding applications. It can be easily customised to match specific colour requirements.

Besides using sustainable materials, the RCCBs are designed to exceed the standard lifetime expectations set by IEC 61008-1. With 10,000 operating cycles, the devices should offer good mechanical and electrical life. The standardised accessory system enables smooth hardware upgrades, including auxiliary switches, undervoltage releases and more. This unified system of function extensions allows machines and switchboards to remain productive and cost-effective for long periods.