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This Siemens 3VA5145-4ED12-1AA0 is a 1-pole molded-case circuit breaker from the 3VA5 series, designed for system protection applications. It features a nominal current rating of 45A at 40°C, with a breaking capacity of 25kA at 277V AC.
The circuit breaker operates at a rated voltage of 415V AC and includes overload protection with an adjustable response value and fixed short-circuit protection. It is built for durability with a typical mechanical service life of 20,000 switching cycles.
Designed for easy installation, this unit features DIN rail mounting and front connections. It meets UL489 standards and is suitable for HACR and HID type applications. The compact dimensions of 140mm height, 25.4mm width, and 76.5mm depth make it suitable for various panel configurations.
| Qty | Low | High |
|---|---|---|
| 1+ | $0.99 | $0.99 |
Estimated market price range - modelled values for guidance only, not live distributor offers.
The operational current rating is 45A at 40°C.
The breaking capacity is 25kA at 277V.
This circuit breaker has 1 pole.
The rated operating voltage at AC is 415V.
It uses DIN rail mounting.
Yes, it is designed for HACR type applications.
The typical mechanical service life is 20,000 switching cycles.