Siemens 3VA5215-5EC31-0AA0 Low Voltage Circuit Breaker

Siemens 3VA5215-5EC31-0AA0 is a 150 A, three‑pole molded‑case circuit breaker from the SENTRON 3VA family, designed to protect three‑phase low‑voltage distributions up to 600 V AC. It uses a TM230 FTAM thermal‑magnetic trip unit that provides long‑time and instantaneous protection, with AIC ratings of 18 kA at 600 V and 35 kA at 480 V to suit different system voltages. The breaker features a feed‑through connection for DIN rail mounting and is supplied without lugs, simplifying installation in standard panels. Built on the 3VA52 frame (250 A class), it measures 4.1 in W × 7.3 in H × 4.2 in D and is suitable for integration into Siemens or compatible low‑voltage distribution assemblies. Typical applications include protecting feeder circuits, motor feeders, and branch circuits in commercial and light industrial environments, where reliable thermal‑magnetic protection and compatibility with common control wiring are required.