Siemens 3VA4120-4ED34-0AA0 Molded Case Circuit Breaker

Siemens 3VA4120-4ED34-0AA0 Molded Case Circuit Breaker is a 3-pole protective device rated for 20 A at up to 600 V, designed for overcurrent protection in three‑phase electrical distribution systems. This molded‑case breaker is part of Siemens’ 3VA family, intended for use in commercial and light‑industrial panel assemblies to reliably interrupt fault currents across all three phases. The compact construction supports straightforward installation in standard enclosures and eases replacement alongside other 3VA4 breakers in existing installations. For enhanced safety during maintenance and lockout procedures, Siemens offers a compatible padlocking accessory for 3VA4 breakers (catalog 3VA9038-0LB11). The 3VA4120-4ED34-0AA0 is specified for AC systems up to 600 V and provides synchronized protection across three conductors, helping protect downstream equipment such as motors, pumps, and processing gear in appropriate applications within power distribution and control systems.