西门子5SJ4211-7HG42小型断路器480Y/277V 2极 5A 5SJ42117HG42

5SJ42117HG42【MCB 5SJ4 2P 480/277 5A 10K C-TRI】

5SJ42108HG42 | 5SJ42117HG41 | 5SJ42117HG42

5SJ42117HG42/正MCB 5SJ4 2P 480/277 5A 10K C-TRI品

SIEMENS西门子 5SJ4211-7HG42小型断路器5SJ42117HG42全新原装正