The Siemens SENTRON 3VA2225-8HL32-0AE0 is a 3-pole molded case circuit breaker (MCCB) rated for 250 A continuous current and designed for line protection. It carries a maximum interrupting capacity of 440 kA at 240 V, derating to 52.5 kA at 690 V. The thermal trip range is 375 A minimum to 2500 A maximum. This is a current-production part (lifecycle stage: current).
Interrupting Capacity and Thermal Derating
Interrupting capacity varies with system voltage: 440 kA at 240 V, 330 kA at both 415 V and 440 V, 220 kA at 500 V, and 52.5 kA at 690 V. These are symmetrical RMS values — the breaker clears faults at those levels without upstream coordination issues. Thermal derating is published per ambient temperature: full 250 A rating holds through 50 °C, then drops to 241 A at 55 °C, 232 A at 60 °C, 222 A at 65 °C, and 213 A at 70 °C. Panel builders should account for the enclosure's internal temperature rise when sizing — the 48 W maximum power loss at full load adds heat inside the cabinet.
Dimensions and Panel Fit
Footprint is 105 mm wide by 181 mm tall, with a depth of 86 mm behind the panel face. This is a standard 3-pole MCCB form factor for DIN-rail or direct-mount panels. The 86 mm depth means it clears most shallow gland plates and back-panel wiring troughs without interference.
Auxiliary Switching and Configuration
This variant ships with 4 auxiliary switches (HQ type) integrated. No undervoltage release, no ground-fault monitoring, and no communication function are fitted. The basic switch module is order code 3VA2225-8HL32-0AA0. No trip indicator or voltage trigger is present on this build.
Environmental and Storage Limits
Operating temperature range is -25 °C to +70 °C. Storage range is wider: -40 °C to +80 °C — the storage limit governs handling and warehousing, not running conditions.