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This Siemens 3VA5 molded-case circuit breaker, part number 3VA5145-4EC32-1AA0, is engineered for reliable system protection. It operates at a rated voltage of 690V AC and features a 3-pole configuration.
The breaker has a nominal current rating of 45A at 40°C, with derated values at higher temperatures. Its breaking capacity is rated at 25kA at 480V, 65kA at 240V, and 14kA at 600Y/347V according to UL 489 standards. The overcurrent release is of type TM230 with LI protection function.
With a mechanical service life of 20,000 switching cycles and electrical endurance ratings of up to 8,000 cycles, this circuit breaker is built for durability. It supports HACR and HID type applications. The unit has a net weight of 0.951 kg and dimensions of 140mm height, 76.2mm width, and 76.5mm depth.
Mounting is facilitated via DIN rail, and it features front connections with a nut keeper kit on both ends. The conductor cross-section for the connection screw ranges from 12 x 1 mm to 17 x 6.5 mm.
| 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 is 690 V AC.
The operational current rating at 40°C is 45 A.
The breaking capacity is 25 kA at 480 V.
This circuit breaker has 3 poles.
The typical mechanical service life is 20,000 switching cycles.
It uses the TM230 overcurrent release with LI protection function.
The dimensions are 140 mm height, 76.2 mm width, and 76.5 mm depth.