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This Siemens 3VA5 series molded-case circuit breaker, part number 3VA5120-4ED31-1AA0, is designed for system protection. It is a 3-pole breaker with a rated operational current of 20A at 40°C and a maximum voltage rating of 690V.
The breaker features a breaking capacity of 25kA at 480V and 14kA at 600Y/347V. The overcurrent release function is LI, with adjustable short-circuit protection (Ii) from 300A to 300A and adjustable overload protection (Ir) set at 20A. It has a maximum power loss of 12W.
Mechanically, the unit has a typical service life of 15,000 switching cycles. Electrically, it offers endurance ratings of 8,000 cycles at 380/415V and 480V, and 4,000 cycles at 690V. The dimensions are 76.2mm width, 76.5mm depth, and 140mm height. It is designed for DIN rail mounting and has an IP40 protection class on the front.
Additional features include HACR Type compliance and the option for a motor drive accessory. The operating temperature ranges from -25°C.
| Qty | Low | High |
|---|---|---|
| 1+ | $0.99 | $0.99 |
Estimated market price range - modelled values for guidance only, not live distributor offers.
The rated operational current is 20A at 40°C, with a maximum rated operational current of the frame size being 125A.
The voltage rating is 690V.
The breaking capacity is 25kA at 480V, 65kA at 240V, and 14kA at 600Y/347V.
It is a 3-pole circuit breaker.
It offers LI protection function with adjustable short-circuit protection (Ii) from 300A to 300A and adjustable overload protection (Ir) set at 20A.
The dimensions are 76.2mm in width, 76.5mm in depth, and 140mm in height.
The minimum operating ambient temperature is -25°C.