What this breaker carries
The Siemens 3VA1050-4ED32-0DC0 is a 3VA1 frame 100 IEC molded case circuit breaker, 3-pole, with a 50 A fixed thermal-magnetic overload (TM210) and fixed short-circuit protection set at 10 x In. Its breaking capacity class S delivers Icu = 36 kA at 415 V AC — enough to handle high-fault industrial panel feeds without cascading upstream.
Integrated accessories
This order code ships with a factory-fitted undervoltage release (UVR) rated 208–230 V AC 50/60 Hz, two HQ auxiliary switches, and a nut keeper kit. The UVR trips the breaker on voltage loss or intentional drop-out; the aux switches report breaker position back to the PLC or status lamp. The nut keeper kit secures the line/load lug connections against vibration in transport or high-vibration installations.