Siemens 3VA1332-6MH32-0AA0 3VA1 3P 320A 70kA 415V TM120M I Molded Case Circuit Breaker

The Siemens 3VA1332-6MH32-0AA0 is a three-pole molded case circuit breaker (MCCB) from the SENTRON 3VA1 series, rated 320 A with a breaking capacity of 70 kA (Icu) at 415 V AC (utilisation class H). It is equipped with the TM120M I thermal-magnetic trip unit providing overload and short-circuit protection. Rated for distribution and motor-feeder protection in low-voltage switchgear up to 690 V AC.

Technical Specifications

Certifications & Standards

• IEC 60947-2

Applications & Use Cases

At 320 A rated current and 70 kA breaking capacity, the 3VA1332-6MH32-0AA0 is dimensioned for feeder, sub-distribution and motor-circuit protection in low-voltage main and sub-distribution boards. The TM120M I trip unit provides fixed overload and short-circuit protection matched to the rated current.

The IEC Frame 400 enclosure supports fixed mounting in form-separated switchgear (form 2–4) and accepts a range of Siemens 3VA accessories — auxiliary and alarm switches, shunt and undervoltage releases, rotary and motor operators — for adaptation to the specific installation and control scheme.