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This Siemens 3VA5140-4EC41-0AA0 is a 4-pole molded-case circuit breaker from the 3VA5 series, designed for system protection. It has a maximum rated operational current of 125A frame size and a continuous operational current (Iu) of 40A at 40°C.
The circuit breaker operates at a maximum rated operational voltage of 690V AC and 600V DC, with an insulation rated voltage (Ui) of 800V. It provides overload protection with Ir=40A and fixed short-circuit protection with Ii ranging from 5 to 10 times the rated current. The breaking capacity according to UL 489 is 25kA at 480V and 14kA at 600Y/347V. According to IEC 60947, the breaking capacity (Icu) is 36kA at 415V and 5kA at 690V.
Key electrical features include a TM230 overcurrent release with LI protection function. The mechanical service life is typically 15,000 switching cycles, with electrical endurance varying based on voltage and load conditions. This HACR Type circuit breaker is suitable for Heating, Air Conditioning, and Refrigeration applications.
It is designed for DIN rail mounting and has a height of 5.5 inches. The N-conductor protection is not included, and it does not feature ground-fault monitoring or communication functions. The breaker is marked with UL file SEAS and complies with various approval agencies including 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 continuous operational current (Iu) is 40A at 40°C.
The maximum rated operational voltage (Ue) for AC is 690V, and for DC is 600V.
The breaking capacity according to UL 489 is 25kA at 480V.
This circuit breaker has 4 poles.
It uses DIN Rail mounting.
The typical mechanical service life is 15,000 switching cycles.