3VA5170-6EC31-1AA0

This Siemens 3VA5170-6EC31-1AA0 is a molded-case circuit breaker from the 3VA5 series, designed for system protection applications. It features a 3-pole configuration and a permanent rated current of 70A, with an operational current of 70A at up to 50°C. The breaker offers a significant breaking capacity of 65kA at 480V and 100kA at 240V, adhering to UL 489 standards. It includes overload protection with an adjustable response current (Ir) of 70A and fixed short-circuit protection (Ii) adjustable from 350A to 700A. The device has a mechanical service life of 15,000 switching cycles and electrical endurance ratings suitable for various AC voltage levels. Its dimensions are 140mm in height, 76.2mm in width, and 76.5mm in depth, with a front IP40 protection class. Mounting is facilitated via DIN rail. The breaker is rated for a maximum operating voltage of 690V and has an operating temperature range from -25°C to 70°C.

This circuit breaker is suitable for applications requiring robust protection against overloads and short circuits. Its UL 489 listing, including HACR Type designation, makes it suitable for HVAC, air conditioning, and refrigeration circuits. The LI protection function ensures reliable operation in demanding environments. While it does not feature communication or other measurement functions, its core protective capabilities are well-defined. The product is compliant with RoHS3, REACH Unaffected, and has an MSL of 1.