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The Siemens 3VA5140-4ED12-0AA0 is a 1-pole molded-case circuit breaker designed for system protection. It operates with a rated insulation voltage of 500V and a maximum operational voltage of 125V DC. The breaker has a rated operational voltage of 415V AC and an operational current of 40A at 40°C, with derating at higher temperatures.
This circuit breaker offers a breaking capacity of 25kA at 277V according to UL 489 standards and 5kA at 415V according to IEC 60947. It features overload protection with Ir=40A and fixed short-circuit protection with Ii=10 x In. The mechanical service life is rated at a typical 20,000 switching cycles, with electrical endurance varying based on voltage and load conditions.
Designed for front connection and DIN rail mounting, the unit has dimensions of 140mm height, 25.4mm width, and 76.5mm depth. It is classified as HACR Type according to UL 489. The breaker has a net weight of 0.407 kg.
| 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 40A at 40°C, derating to 36A at 70°C.
The rated insulation voltage is 500V, with a maximum operational voltage of 125V DC and a rated operational voltage of 415V AC.
The breaking capacity is 25kA at 277V according to UL 489, and 5kA at 415V according to IEC 60947.
This circuit breaker is designed for DIN rail mounting.
The dimensions are 140mm in height, 25.4mm in width, and 76.5mm in depth.