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This Siemens 3VA5120-4ED16-0AA0 is a 1-pole molded-case circuit breaker from the 3VA51 series, designed for system protection applications. It operates with a rated voltage of 415V AC and has a current rating of 20A at 40°C, with derating at higher temperatures.
The circuit breaker offers a breaking capacity of 25kA at 277V and 5kA at 415V according to UL 489 standards. It is equipped with a TM210 trip unit providing LI protection functions, with fixed overload (Ir=20A) and short-circuit (Ii=15 x In) settings.
Designed for durability, it boasts a typical mechanical service life of 20,000 switching cycles and electrical endurance ratings of up to 8,000 cycles at 380/415V. The breaker supports DIN rail mounting and features a lever actuator.
It is compliant with UL 489 standards, including HACR, HID, and SWD type designations. The unit has an insulation voltage rating of 500V and a maximum operational voltage of 125V DC.
| 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, with derating to 18A at 70°C.
The breaking capacity is 25kA at 277V and 5kA at 415V according to UL 489.
It uses a TM210 trip unit with LI protection functions.
The rated operating voltage at AC is 415V.
The typical mechanical service life is 20,000 switching cycles.
It is designed for DIN rail mounting.