SENTRON 3VA2225-5HL32-0CL0 — 250 A MCCB with ETU320 Release
The Siemens SENTRON 3VA2225-5HL32-0CL0 is a 3-pole molded case circuit breaker (MCCB) rated for 250 A continuous current, configured as a line-protection device with an ETU320 electronic trip unit. It carries a maximum interrupting capacity of 187 kA at 240 V AC, derating to 121 kA at 415 V and 440 V, 79 kA at 500 V, and 5.1 kA at 690 V — the voltage-dependent curve governs where this breaker can be applied in a distribution panel without exceeding its SCCR. Thermal derating is minimal up to 50 °C (full 250 A), then drops to 241 A at 55 °C, 232 A at 60 °C, 222 A at 65 °C, and 213 A at 70 °C. The operating temperature range spans -25 °C to +70 °C, with storage from -40 °C to +80 °C. Maximum power dissipation is 50.5 W — account for that heat load in a sealed enclosure. The auxiliary contact configuration includes 2 auxiliary switches, 1 trip alarm switch, and 1 electrical alarm switch (HQ type). A trip indicator is present, and an undervoltage release (UVR) is integrated as the auxiliary release design. The basic switch supplied is 3VA2225-5HL32-0AA0, and the integrated auxiliary trip is 3VA9608-0BB24.
Mounting and Integration
Dimensions are 181 mm height, 105 mm width, and 86 mm depth — fits standard MCCB panel cutouts and busbar arrangements for 250 A frames. Rated insulation voltage is 800 V, so it handles 690 V line-to-line systems with margin.