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This Siemens 3VA5145-4EC31-1AA0 is a molded-case circuit breaker designed for system protection. It features a 3-pole configuration with a rated operational current of 45A at 40°C and a voltage rating of 690V.
The circuit breaker provides a breaking capacity of 25kA at 480V, 65kA at 240V, and 14kA at 600Y/347V. It includes overload protection with Ir=45A and fixed short-circuit protection with Ii=5...10 x In. The overcurrent release type is TM230 with LI protection function.
With a mechanical service life of typically 15,000 switching cycles and electrical endurance ratings of up to 8,000 cycles, this breaker is built for durability. It has a maximum power loss of 10.2W and an active power loss of 3.4W per pole. The unit is designed for DIN rail mounting and has a protection class of IP40 on the front.
Additional features include HACR Type compliance and an operating temperature range from -25°C. It is approved by CCC, CE, CSA, EAC, UL489, and VDE.
| Qty | Low | High |
|---|---|---|
| 1+ | $0.99 | $0.99 |
Estimated market price range - modelled values for guidance only, not live distributor offers.
The rated operational current is 45A at 40°C, 45°C, and 50°C.
The voltage rating is 690V.
The breaking capacity at 480V is 25kA.
It uses DIN Rail mounting.
The operating temperature range is from -25°C upwards.