Siemens 3VA4140 6ED34 0AA0 Molded Case Circuit Breaker

Siemens 3VA4140-6ED34-0AA0 is a three-pole molded-case circuit breaker from Siemens’ Sentron 3VA4 family, built for 125H-frame installations and rated to interrupt 65 kA at 480 V. This In=40 A device uses a TM210 thermal-magnetic trip unit with FTFM, providing 40 A overload protection and a permanently set short-circuit rating Ir=40 A (Ii=10 × In); the 3-pole assembly accepts secure lug-type terminations (LD/LUG). In typical use within 480 V systems, it protects branch circuits in electrical distribution panels or motor feeders, offering fast isolation and coordination with upstream protection. The 125 frame size aligns with the 3VA4 family’s standard mounting dimensions, enabling straightforward replacement in compatible Siemens or third-party panels. This model is commonly chosen when a compact 3P, 40 A protection device with high short-circuit capability is required for industrial or commercial distribution, where reliable thermal-magnetic protection and a robust interrupting rating are essential.