Hongfa 1rm single pole relay interface modules 16a coilcontact separated hongfa 1rm 110a 16a 3 a 16a 110v ac single pole relay interface module that features coilcontact separation the module is supplied complete with relay socket led ejector clip and identification label making it easy to order all these components with just one part number suitable for many applications eg industrial automation heating and cooling systems elevators etc hongfa 1rm 110a 16a 3 spco 110vac 16a si