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This is 400A 4 Fused Switch Disconnector manufactured by Siemens. The manufacturer part number is 3KF4440-2LF11. The product 3kf4, is a highly preferred choice for users. It has equipped with 4 poles. It also carries 400a maximum current. Its fuse current rating is approximately 37 100a .
For more information please check the datasheets.
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