Crydom propak 50a solid state load relay 4 to 32v dc zero cross panel mount crydom cmd6050 a solid state relay from the crydom propak range that has an scr output suitable for heavy industrial loads this panel mounting relay has mounting holes for easy installation and connection is quick and easy via cage clamps suitable for a wide range of resistive load applcations including lighting heating ventilation drives etc crydom cmd6050 propak electronic load relay