What this breaker is and what it handles
The Siemens 3VA1032-4ED32-0DH0 is a SENTRON molded case circuit breaker (MCCB) built for line protection — meaning it sits upstream protecting a feeder or a distribution panel, not a specific motor or drive. It's a 3-pole unit rated 32 A continuous at 40 °C, and it holds that same 32 A rating all the way up to 50 °C before it starts to derate; at 65 °C it's still good for 30 A. That thermal stability matters when you're packing breakers tight in a warm enclosure. The breaking capacity is the headline number here. At 240 V it interrupts 121 kA — that's a serious fault-current rating for a 32 A frame. At 415 V it's still 75.6 kA, and at 500 V it drops to 11.9 kA. That tells you this breaker is sized for a high-available-fault panel, likely fed by a transformer in the 500–1000 kVA range. The rated insulation voltage is 800 V, so it's comfortable on 480 V or 600 V class systems.
What's built in and what you add
This order code comes factory-fitted with an undervoltage release (UVR) — so if your control voltage drops, the breaker trips open. That's a common requirement for safety disconnects or emergency-stop chains where loss of control power should kill the load. It also carries a 2-auxiliary-switch plus 1-trip-alarm-switch (HQ) configuration, meaning you get position feedback and a separate alarm signal when the breaker trips on fault. That's enough for a PLC to know the breaker state and log the trip event. The breaker measures 76.2 mm wide by 130 mm tall by 70 mm deep. It is a panel-mount design. The power loss is 13.1 W maximum at rated load.