Circuit breaker 3VA2225-5KP32-0JD0 — IEC frame 250, class M breaking capacity
The Siemens 3VA2225-5KP32-0JD0 is a 3-pole IEC frame 250 molded case circuit breaker (MCCB) with a class M breaking capacity of Icu=55kA at 415V AC. The ETU850 electronic trip unit provides LSI protection: long-time (Ir) adjustable 100A to 250A, short-time (Isd) 0.6 to 10x In, and instantaneous (Ii) 1.5 to 10x In. The Ir range lets you dial in the exact overload pickup for the downstream load, while the Isd and Ii bands give coordination headroom for motor-starting inrush or transformer magnetizing current.
Integration and accessory fit
The N-conductor protection option requires an external current transformer, up to 160% of In. Mounts in a standard Siemens 3VA2 panelboard or individual enclosure; the frame 250 footprint matches the 3VA2 family, so busbar and handle-mechanism accessories are shared across the series.