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This Siemens SENTRON 3VA5 series molded case circuit breaker, part number 3VA5145-5EC31-1AA0, is a 3-pole device designed for robust electrical protection. It features a current rating of 45A and a voltage rating of 690V.
The circuit breaker provides a breaking capacity of 35kA at 480V, with other ratings including 85kA at 240V and 18kA at 600Y/347V. It is equipped with a thermal magnetic tripping mechanism and offers adjustable short-circuit protection (Ii) from 225A to 450A, and overload protection (Ir) set at 45A.
Designed for reliability, it has a mechanical service life of up to 20,000 cycles and electrical endurance ratings of 8,000 cycles at 380/415V and 480V. The unit has a maximum power loss of 10.2W and an active power loss of 3.4W per pole. It operates within an ambient temperature range of -25°C to 70°C and has an IP40 protection class.
Mountable via DIN rail or cable/panel, this circuit breaker is suitable for various industrial applications, including heating, air conditioning, and refrigeration (HACR Type). It does not feature communication or measurement functions.
| Qty | Low | High |
|---|---|---|
| 1+ | $0.99 | $0.99 |
Estimated market price range - modelled values for guidance only, not live distributor offers.
The current rating is 45A.
The voltage rating is 690V.
The breaking capacity at 480V is 35kA.
The operating temperature ranges from -25°C to 70°C.
The protection class is IP40.
No, this circuit breaker does not have a communication function.