187357 plc module products are offered for sale by suppliers on Alibaba.com, of which plc, pac, & dedicated controllers accounts for 86%, other electronic components accounts for 2%, and relays accounts for 1%.
A wide variety of plc module options are available to you, such as new, 100% original.You can also choose from low power, high power plc module,as well as from pcb, general purpose, and protective plc module, and whether plc module is electromagnetic relay, standard, or voltage relay.