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The Siemens 3VA5120-5EC41-0AA0 is a 4-pole molded-case circuit breaker from the 3VA5 series, designed for system protection applications. This breaker features a fixed short-circuit protection setting and a TM230 overcurrent release with LI protection function.
Key electrical specifications include a maximum rated operational voltage of 690V AC and 600V DC. The continuous rated current (Iu) is 20A, with operational current ratings varying slightly with temperature, down to 18.1A at 70°C. The breaking capacity according to IEC 60947 is 55kA at 415V AC, and according to UL 489, it is 35kA at 480V AC.
This circuit breaker has a mechanical service life of typically 15,000 switching cycles and an electrical endurance of 8,000 cycles at 380/415V AC. It supports DIN rail mounting and has a height of 5.5 inches. The power loss is a maximum of 12W, with 4W active power loss per pole under hot operating conditions.
Additional features include adjustable short-circuit response current (li) from 150A to 300A. It is designed for line protection and is HACR Type rated.
| Qty | Low | High |
|---|---|---|
| 1+ | $0.99 | $0.99 |
Estimated market price range - modelled values for guidance only, not live distributor offers.
The permanent rated current (Iu) is 20A, and the operational current at 40°C is also 20A.
The maximum rated operational voltage is 690 V with AC 50/60Hz and 600 V with DC.
The breaking capacity according to UL 489 at 480 V is 35 kA.
This circuit breaker has 4 poles.
The mounting type is DIN Rail.