Siemens 3VA4145-5ED34-0AA0 Soft Starter Module

Siemens 3VA4145-5ED34-0AA0 is a 3-pole molded-case circuit breaker (MCCB) from the 3VA4 family, part of the UL Frame 125 series, rated for 45 A and a maximum line voltage of 480 V, with a 35 kA short-circuit breaking capacity at 480 V. Designed for industrial and commercial power-distribution panels, the device uses Siemens' rugged 3VA4 frame and provides three-phase protection with a compact, modular form factor. It employs a TM210 thermal-magnetic trip system and FTFM characteristics, with trip settings specified as In = 45 A for overload protection, Ir = 45 A for long-time protection, and Ii = 10 × In for instantaneous fault protection (approximately 450 A). The MCCB features standard three-pole compatibility for typical three-phase wiring and is intended for use in low-voltage distribution networks, where it serves as a protective device against overcurrents and short circuits in motor and equipment circuits.