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This Siemens 3VA5280-5EF32-0AA0 is a 3-pole molded-case circuit breaker from the 3VA5 series, designed for system protection applications. It features an 80A operational current rating at 40°C, with derated values at higher temperatures.
The circuit breaker operates at a rated voltage of 690V AC and has a maximum DC operational voltage of 750V. It provides a breaking capacity of 35kA at 480V according to UL 489 standards, and 55kA at 415V according to IEC 60947 standards. The overcurrent release is of type TM240 with LI protection function.
With a mechanical service life of 20,000 switching cycles, this breaker is built for durability. It has a net weight of 2.252 kg and dimensions of 185mm height, 105mm width, and 83mm depth. The mounting type is DIN Rail.
This model is HACR Type compliant, suitable for Heating, Air Conditioning, and Refrigeration circuits. It does not feature communication or other measurement functions. The adjustable response value for short-circuit protection ranges from 56A to 80A.
| Qty | Low | High |
|---|---|---|
| 1+ | $0.99 | $0.99 |
Estimated market price range - modelled values for guidance only, not live distributor offers.
The operational current is 80A at 40°C, 50°C, and 45°C, derating to 70.4A at 70°C.
The rated operational voltage at AC is 690 V, and the maximum rated operational voltage with DC is 750 V.
According to UL 489, the breaking capacity is 35kA at 480V. According to IEC 60947, it is 55kA at 415V and 7kA at 690V.
It features a TM240 overcurrent release with LI protection function.
The dimensions are 185 mm in height, 105 mm in width, and 83 mm in depth.