3VA5112-4EC31-0AA0
Siemens
The Siemens 3VA5112-4EC31-0AA0 is a 3-pole molded-case circuit breaker with a 125A current rating and a 690V maximum operational voltage. It offers a breaking capacity of 25kA at 480V.
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This Siemens 3VA5212-5EC31-0AA0 is a molded-case circuit breaker from the SENTRON series, designed for system protection applications. It features a 3-pole configuration and a permanent rated current (Iu) of 125A, with operational current ratings varying by temperature from 125A at 40°C down to 99A at 70°C.
The circuit breaker has a maximum rated operational voltage of 690V AC and 750V DC, with a rated insulation voltage (Ui) of 800V. It offers a breaking capacity (Icu) of 55 kA at 415V and 35 kA at 480V, with a switching capacity class of M. The overcurrent release type is TM230 with LI protection function.
Mechanically, the unit has a height of 185 mm (7.3 in), a width of 105 mm (4.1 in), and a depth of 83 mm (3.3 in). It is designed for DIN rail mounting. The typical mechanical service life is 20,000 switching cycles, with electrical endurance ratings of 8,000 cycles at 380/415V and 480V, and 4,000 cycles at 600V.
This breaker is UL 489 listed and suitable for HACR type applications. It features adjustable short-circuit protection with an instantaneous trip range (li) from 625A to 1250A.
| Qty | Low | High |
|---|---|---|
| 1+ | $0.99 | $0.99 |
Estimated market price range - modelled values for guidance only, not live distributor offers.
The maximum rated operational voltage is 690 V AC and 750 V DC.
The breaking capacity according to UL 489 at 480V is 35 kA.
The permanent rated current (Iu) is 125 A.
This circuit breaker has 3 poles.
It offers LI protection function with a TM230 overcurrent release.
The dimensions are 185 mm height, 105 mm width, and 83 mm depth.
