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3VA1 - is it possible to reverse the power supply and the load?

8/16/2022 10:11 AM	Rate (0)
archibald Advanced Member Joined: 7/2/2012 Last visit: 5/9/2025 Posts: 32 Rating: (0)	Hello, On a machine tool, I have to replace an old circuit breaker by a siemens 3VA1225-4EF32-0AA0 max curent 250A. The problem is that the load (output) of the circuit breaker arrives from the top with fixed bars. The arrival of the power supply is comming from the bottom with a cable. Is it possible to connect the power supply inlet to terminals 2-4-6 of 3VA1 and the load (outlet) to terminals 1-3-5 of 3VA1 or is this a bad idea? Best regards, Michaël

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8/16/2022 11:42 AM	Rate (3)
PISCEAN 2010 Posts: 8092 Rating: (884)	Yes, you can connect as per your requirement. Please refer attached sheet, extracted from manual. Attachment 3VA MCCB connection.jpg (649 Downloads)
PISCEAN 2010 Posts: 8092 Rating: (884)
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This contribution was helpful to 2 thankful Users archibald mindware

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