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This Siemens 3VA5145-4ED12-0AA0 is a 1-pole molded-case circuit breaker from the 3VA5 UL frame series, featuring standard (Class S) breaking capacity. It is designed for system protection applications and is suitable for HACR and HID type circuits according to UL 489.
The circuit breaker has a rated insulation voltage of 500V and a maximum rated operational voltage of 125V DC. At AC, the rated operating voltage is 415V. The operational current is rated at 45A at 40°C, with derating at higher temperatures. The TM210 trip unit provides overload protection with a fixed Ir setting and fixed short-circuit protection (Ii = 10 x In).
Switching capacity according to IEC 60947 includes a breaking capacity (Icu) of 25 kA at 240V and 5 kA at 415V. According to UL 489, the breaking capacity at 277V is 25 kA and at 347V is 14 kA. The device has a mechanical service life of 20,000 switching cycles and an electrical endurance of 8,000 cycles at 380/415V.
Mechanically, the unit has a height of 140mm, a width of 25.4mm, and a depth of 76.5mm. It is designed for front connection and features DIN rail mounting. The degree of protection is IP40. The country of origin is CZ.
| 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 45A at 40°C, with a rated permanent current (Iu) of 45A.
The rated insulation voltage is 500V, the maximum rated operational voltage with DC is 125V, and the rated operating voltage at AC is 415V.
The breaking capacity (Icu) is 25 kA at 240V and 5 kA at 415V (IEC). According to UL 489, it is 25 kA at 277V and 14 kA at 347V.
It is designed for DIN rail mounting and has a front connection.
It features a TM210 trip unit with overload protection (Ir) and fixed short-circuit protection (Ii).