Siemens 3VA4150-5ed24-0AA0 Molded Case Circuit Breaker

Siemens 3VA4150-5ED24-0AA0 is a two-pole molded‑case circuit breaker in the 3VA4 UL frame, rated for 50 A with a 35 kA short‑circuit breaking capacity at 480 V. It employs a TM210 thermal‑magnetic trip mechanism, providing overload protection set at In = 50 A and an instantaneous trip setting Ii = 10 × In (approximately 500 A), with Ir representing the permanent short‑circuit protection. This MCCB is designed for line protection in distribution panels and feeders, offering reliable protection for electrical installations up to 50 A per pole in industrial and commercial applications. The model is documented in Siemens’ 3VA molded‑case family and is listed for UL frame 125 with a 35 kA @ 480 V rating, aligning with typical 2‑pole, 50 A configurations used to safeguard motors, feeders, and other AC circuits in controlled environments. Applications include protecting feeders and single‑/multi‑line circuits in switchgear, electrical panels, and industrial control panels that require a compact, mechanically robust MCCB with a thermal‑magnetic trip and a defined instantaneous trip characteristic.