Hongfa rmtfl 8a double pole relay interface modules hongfa 2rmtfl 110a an 8a 110v ac double 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 2rmtfl 110a dpco 110vac 8a double pole relay interface mod