The Siemens SENTRON 3VA2225-8HL32-0AC0 is a 3-pole molded case circuit breaker (MCCB) rated for 250 A continuous current, designed for line protection. Breaking capacity reaches 440 kA at 240 V and 330 kA at 415 V — figures that govern its ability to safely interrupt high-fault currents in distribution panels without cascading upstream.
Thermal derating and enclosure fit
The MCCB carries its full 250 A rating up to 50 °C ambient; at 60 °C it derates to 232 A, and at 70 °C to 213 A. When sizing for a sealed or high-ambient panel, use the 60 °C or 70 °C figure — not the 40 °C number. Dimensions are 181 mm high, 105 mm wide, 86 mm deep, which places it in the standard SENTRON 3VA2 footprint for DIN-rail or mounting-plate integration.
Auxiliary switching and variants
This order code includes 2 auxiliary switches (HQ type). The basic switch variant is 3VA2225-8HL32-0AA0. There is no undervoltage release, no ground-fault monitoring, and no communication function on this variant. Maximum power loss is 48 W — a figure to budget for in panel thermal calculations.