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This Siemens 3VA5170-4EC31-1AA0 is a 3-pole molded-case circuit breaker designed for system protection. It features a permanent rated current (Iu) of 70A, with an operational current of 70A at 40°C, 45°C, and 50°C, and slightly reduced ratings at higher temperatures.
The circuit breaker has a voltage rating of 690V and a breaking capacity of 25kA at 480V, and 65kA at 240V. The overcurrent release is of type TM230 with LI protection function. Adjustable parameters for short-circuit response range from 350A to 700A.
Mechanically, the unit has a typical service life of 15,000 switching cycles. Its dimensions are 5.5 inches in height, 3 inches in width, and 3 inches in depth. The ingress protection rating on the front is IP40. Mounting is via DIN rail.
This model is suitable for applications requiring UL 489 compliance, including HACR Type circuits. It does not have communication or other measurement functions. An optional motor drive accessory is available.
| Qty | Low | High |
|---|---|---|
| 1+ | $0.99 | $0.99 |
Estimated market price range - modelled values for guidance only, not live distributor offers.
The permanent rated current (Iu) is 70A, and the operational current is 70A at temperatures up to 50°C.
The voltage rating is 690 V.
The breaking capacity current at 480V is 25 kA.
This circuit breaker has 3 poles.
The mounting type is DIN Rail.
The minimum operating temperature is -25 °C.