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

Siemens 3VA4120-4ED34-0AA0 is a three-pole molded‑case circuit breaker from the Sentron 3VA41 family, designed for low‑voltage power distribution in commercial and industrial panels. Rated for up to 600 V AC, it provides a nominal 20 A current rating with a TM210 thermal‑magnetic trip unit that handles overload protection and short‑circuit interruption. The 3VA41 frame (125) is UL 489 listed and configured for standard Class S protection in industrial panels. Its interrupting capacity is 25 kAIC at 480 V and 14 kAIC at 600 V, making it suitable for feeders and branch circuits across those voltage ranges. This 3‑pole device is intended for three‑phase circuits and ships with a factory‑set protection level of 20 A; padlocking options are available (3VA9038‑0LB11) for lockout during maintenance. Part of Siemens Sentron offerings, it integrates with other 3VA devices in panel assemblies and is commonly used to protect motors, lighting, and general distribution circuits where reliable, code‑compliant protection is required.