HS191DR • 1.9°C/W Thermal resistance • Suitable for 1 Single Phase or Dual SSR • DIN-Rail mounting GENERAL SPECIFICATIONS Description Model Number Thermal Resistance (°C/W) Surface area (in²/cm²) Heat Sink Mounting Style Weight (lbs/grs) Material Finish SSR Mounting Holes/threads Number and type of relay accepted Mounting screw torque (in lbs/nm) Accepts Fan/size (mm) if applicable Din-Rail Mount HS191DR 1.9 79/512 Din Rail 0.63 / 286 Aluminum Black Anodized 2/M4 1, Singel or Dual 15-20/1.7-2.2 No MECHANICAL SPECIFICATIONS Rev. 031312 ANNEX - ENVIROMENTAL INFORMATION