Siemens 5SN7G10A Circuit Breaker

Siemens 5SN7G10A circuit breaker is a three-pole protective device with a 10 A current rating, designed for use in 220–380 V three-phase electrical systems. The part number is 5SN7G10A (also listed as 5SN7 G10A). With its 3P configuration, it interrupts current on all three phase conductors to provide protection for multi-phase circuits. The 10 A rating indicates the nominal current at which the device operates to limit excess current, while the specified voltage range (220–380 V) describes the operating window for standard three-phase service. This specification makes the 5SN7G10A appropriate for installations that require a Siemens-branded protective device in a three-phase 220–380 V system. When selecting components, ensure the panel or distribution setup supports a 3P 220–380 V arrangement and that the 10 A rating matches the protected circuit’s load.