Siemens 3VA6225-6HL31-0AA0 3-Phase Circuit Breaker

Siemens 3VA6225-6HL31-0AA0 is a three‑phase molded‑case circuit breaker (MCCB) in the UL 3VA6 frame rated for up to 250 A with an electronic trip unit for precise protection in industrial power systems. It uses an electronic trip module (ETU320) with line indication (LI) and a selectable overload setting in a 3‑pole configuration, adjustable from 100 to 250 A to suit downstream protection and coordination with upstream devices. The device provides a short‑circuit breaking capacity of 65 kA at 480 V and is rated for a maximum switching voltage up to 480 VAC, making it suitable for transformer, generator, and plant protection in distribution gear; typical power loss can reach up to about 42 W under full load. Delivery commonly notes that units are shipped without terminal connections (without lugs), so field wiring must be completed per installation requirements. This Siemens MCCB is part of the SENTRON protection components line and is designed for reliable protection in medium‑power industrial switchgear where clear status indication and UL‑listed protection are important for transformer and equipment protection applications.