The Siemens 3VA2225-6KP32-0JH0 is a SENTRON 3VA2 molded case circuit breaker (MCCB) rated for 250 A continuous current at 40 °C, with a 3-pole configuration and line protection design. Its interrupting capacity reaches 242 kA at 240 V AC, 187 kA at 415/440 V, and 121 kA at 500 V — figures that define the available fault-current headroom for the downstream panel.
The 250 A rating holds flat from 40 °C to 50 °C, then derates linearly: 238 A at 55 °C, 225 A at 60 °C, 213 A at 65 °C, and 200 A at 70 °C. Maximum power loss is 48 W.
That 86 mm depth is the key dimension for enclosure depth planning — it determines gland-plate clearance and whether the breaker fits a shallow 200 mm deep panel without a sub-panel extension. Width and height are standard for a 250 A frame in the 3VA2 family; the 105 mm width occupies three 35 mm DIN positions if mounted on a DIN rail adapter, though the 3VA2 is typically bolted directly to a mounting plate for high-fault applications.
Breaking capacity by voltage
Interrupting capacity varies sharply with system voltage: 242 kA at 240 V, 187 kA at 415 V and 440 V, 121 kA at 500 V, and 4.5 kA at 690 V. At 480 V (common in North American industrial systems), the 500 V rating of 121 kA provides substantial headroom for most service-entrance applications.
Integrated functions and accessories
It does not include undervoltage release or ground-fault monitoring. The base switch is order code 3VA2225-6KP32-0AA0. For a controls integrator, the communication function and auxiliary contacts allow the breaker to report its state to a PLC or SCADA system without an external interposing relay.