Hongfa rmtfl 16a single pole relay interface modules hongfa 1rmtfl 12 a 16a 12v dc 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 1rmtfl 12 spco 12vdc 16a single pole relay interface module