SENTRON 3VA2 MCCB with ETU320 — 250 A, 3-Pole, Line Protection
The Siemens 3VA2225-7HL32-0JL0 is a SENTRON molded case circuit breaker (MCCB) rated for a continuous current Iu of 250 A across a 40 °C to 50 °C ambient, with a 3-pole configuration and an ETU320 electronic overcurrent release. Breaking capacity reaches 330 kA at 240 V and 242 kA at 415 V, with a steep drop to 6.3 kA at 690 V, so the part is sized for low-voltage distribution panels where high fault currents at 240/415 V are the design case.
The 3VA2225-7HL32-0JL0 delivers 330 kA at 240 V, 242 kA at 415 V and 440 V, 187 kA at 500 V, and 6.3 kA at 690 V. At 690 V the 6.3 kA rating is modest — the breaker is not intended for 690 V main service; it is a downstream feeder or branch device at that voltage.
Maximum power loss is 48 W, so ventilation or derating within the enclosure should account for that thermal load.