Rs422 spd

16 rs422 spd products are offered for sale by suppliers on Alibaba.com, of which surge protection devices accounts for 31%, other electrical equipment accounts for 25%, and plc, pac, & dedicated controllers accounts for 6%. A wide variety of rs422 spd options are available to you, You can also choose from 20, 5 and 10 rs422 spd,as well as from 10ka rs422 spdand whether rs422 spd is 2p, or 1.