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This is 3+N Pole Type A Residual Current Circuit Breaker 63A 5SM3 300mA manufactured by Siemens. The manufacturer part number is 5SM3 6466KK12. The product has a current rating of 63a. Moreover, the product has a nominal 400v voltage rating. Allows up to 300ma trip sensitivity. The product 5sm3, is a highly preferred choice for users. It allows type a tripping features. It has equipped with 3+n poles.
For more information please check the datasheets.
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