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This Siemens 3VA5 series molded-case circuit breaker, part number 3VA5140-1MU32-0AA0, is engineered for starter protection applications. It features a 3-pole configuration and a rated operational current of 40A, suitable for use up to 70°C.
The breaker operates at a rated voltage of 690V AC and boasts a high breaking capacity, with a maximum short-circuit current (Icu) of 150 kA at 240V and 70 kA at 415V. It also has a making capacity (Icm) of 330 kA at 240V.
Designed for reliability, it has a mechanical service life of 20,000 switching cycles and electrical endurance ratings of up to 8,000 cycles at 380/415V. The unit is built with front connections and a nut keeper kit for secure termination.
Key electrical specifications include a rated insulation voltage of 800V and a maximum power loss of 5W. The dimensions are 140mm in height, 76.2mm in width, and 76.5mm in depth, with a net weight of 1.034 kg. It is HACR Type listed according to UL 489.
| Qty | Low | High |
|---|---|---|
| 1+ | $0.99 | $0.99 |
Estimated market price range - modelled values for guidance only, not live distributor offers.
The operating voltage for this circuit breaker at AC rated value is 690 V.
The maximum short-circuit current breaking capacity (Icu) at 240V is 150 kA.
The mechanical service life of this circuit breaker is typically 20,000 switching cycles.
The RoHS status is RoHS3 Compliant.
The Moisture Sensitivity Level (MSL) is 1 Unlimited.
The REACH status is REACH Unaffected.