Siemens 3VA6140-6HN31-0AA0 Molded Case Circuit Breaker

Siemens 3VA6140-6HN31-0AA0 is a three-pole molded-case circuit breaker in the 3VA6 frame rated for 40 A, designed for 600 V systems and UL/IEC-listed branch-circuit protection. It delivers a 65 kA short-circuit breaking capacity at 480 V with In = 40 A and an overload setting of Ir = 16 A, using ETU350/LIS trip options for precise coordination. The device supports Ue/Ui ratings up to 600 V and offers a mechanical life of about 20,000 switching cycles, with active power loss around 2.4 W at rated current (0.8 W per pole). It is listed as HACR-type and UL/IEC-approved, making it suitable for HVAC, commercial, and light-industrial electrical distributions.