5408 relay output plc module products are offered for sale by suppliers on Alibaba.com, of which plc, pac, & dedicated controllers accounts for 75%, relays accounts for 4%.
A wide variety of relay output plc module options are available to you, such as new, 100% original.You can also choose from industrial, automated and industrial automation relay output plc module,as well as from black, white, and gray relay output plc module,