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This Siemens SENTRON 3VA51 molded-case circuit breaker, part number 3VA5170-4EF32-0AA0, is engineered for system protection applications. It operates with a rated insulation voltage of 800V and a maximum operational voltage of 500V DC, with a rated AC operating voltage of 690V.
The breaker has a 70A current rating at 40°C, with adjustable overload and short-circuit protection settings. It offers a breaking capacity of 25kA at 480V according to UL 489 standards and 55kA at 240V according to IEC 60947.
With a mechanical service life of 20,000 switching cycles and electrical endurance ratings up to 8,000 cycles, this circuit breaker is built for durability. Its dimensions are 140mm in height, 76.2mm in width, and 76.5mm in depth, with a net weight of 0.811 kg. It is designed for DIN rail mounting.
The TM240 trip unit provides LI protection functionality. The breaker is HACR Type compliant. It does not feature communication or other measurement functions, nor integrated earth-fault protection.
| Qty | Low | High |
|---|---|---|
| 1+ | $0.99 | $0.99 |
Estimated market price range - modelled values for guidance only, not live distributor offers.
The rated operating voltage for AC is 690 V, and the maximum operational voltage with DC is 500 V.
The current rating is 70A at 40°C, with adjustable overload release current setting starting at 49A.
The breaking capacity according to UL 489 is 25 kA at 480 V.
This circuit breaker has 3 poles.
It supports DIN rail mounting.
The RoHS status is RoHS3 Compliant.
The Moisture Sensitivity Level is 1 Unlimited.