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This Siemens 3VA5170-5EC32-0AA0 is a 3-pole molded-case circuit breaker designed for system protection. It operates with a rated voltage of 690V AC and has a maximum operational voltage of 500V DC.
The breaker features a 70A operational current at 40°C, with a rated permanent current (Iu) of 70A. Its breaking capacity according to UL 489 is 35kA at 480V and 18kA at 600Y/347V. According to IEC 60947, the breaking capacity (Icu) is 55kA at 415V and 7kA at 690V. The short-circuit current making capacity (Icm) is 121kA at 415V and 11.9kA at 690V.
It utilizes a TM230 trip unit with LI protection function, featuring fixed overload protection (Ir=70A) and adjustable short-circuit protection (Ii=5...10 x In). The mechanical service life is rated at a typical 20,000 switching cycles, with electrical endurance varying by voltage and load conditions.
The dimensions are 76.2mm in width, 140mm in height, and 76.5mm in depth. It is designed for DIN rail mounting and features screw connections for the main circuit. The degree of protection is IP40.
| Qty | Low | High |
|---|---|---|
| 1+ | $0.99 | $0.99 |
Estimated market price range - modelled values for guidance only, not live distributor offers.
The rated operational voltage is 690 V AC.
The breaking capacity current at 480V according to UL 489 is 35 kA.
The operational current at 40°C is 70 A.
The dimensions are 76.2 mm in width, 140 mm in height, and 76.5 mm in depth.
The degree of protection is IP40.