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This Siemens 3VA5170-6EF31-0AA0 is a molded-case circuit breaker from the 3VA5 series, designed for system protection applications. It features a 3-pole configuration and a rated operational current of 70A at 40°C, with a maximum frame size current of 125A.
The circuit breaker has a high breaking capacity, rated at 65kA at 480V according to UL 489 standards, and 70kA at 415V according to IEC 60947 standards. It operates with a maximum rated operational voltage of 690V AC and 500V DC, and an insulation voltage of 800V.
Key electrical features include an adjustable overload protection (Ir) from 56A to 70A and short-circuit protection (Ii) from 5 to 10 times the rated current. The device has a mechanical service life of 15,000 switching cycles and electrical endurance ratings that vary by voltage level.
Mechanically, the circuit breaker has dimensions of 140mm in height, 76.2mm in width, and 7 inches in depth. It is designed for DIN rail mounting.
| Qty | Low | High |
|---|---|---|
| 1+ | $0.99 | $0.99 |
Estimated market price range - modelled values for guidance only, not live distributor offers.
The maximum rated operational voltage for this circuit breaker is 690 V AC and 500 V DC.
The permanent rated current (Iu) is 70 A, and the operational current at 40°C is also 70 A.
The breaking capacity according to IEC 60947 is 70 kA at 415 V, and according to UL 489 it is 65 kA at 480 V.
The circuit breaker has a height of 140 mm, a width of 76.2 mm, and a depth of 7 inches.
