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The Siemens 3VA5120-4ED36-0AA0 is a 3-pole molded-case circuit breaker from the SENTRON series, designed for system protection applications. It features a thermal magnetic trip unit (TM210) with overload protection set at Ir=20A and fixed short-circuit protection at Ii=15 x In.
This circuit breaker operates at a rated voltage of 690V AC and has a maximum DC operational voltage of 500V. Its breaking capacity according to UL 489 is 25kA at 480V, and according to IEC 60947, it is 36kA at 415V. The device has a mechanical service life of 20,000 switching cycles and electrical endurance ratings that vary by voltage and load type.
With dimensions of 140mm height, 76.2mm width, and 76.5mm depth, it is suitable for DIN rail mounting. The connection type utilizes aluminum lugs on both line and load sides. The enclosure is rated IP40, and it operates within a temperature range of -25°C to 70°C.
| 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 20A at 40°C and 45°C, decreasing slightly at higher temperatures.
The rated operational voltage at AC is 690V, and the maximum rated operational voltage with DC is 500V.
The breaking capacity according to UL 489 at 480V is 25kA.
This circuit breaker is designed for DIN rail mounting.
The operating temperature range is from -25°C to 70°C.