Crydom HS103DR, Din Rail Mount Heat sink, for 3 x single or 1 x 3 phase Solid State Relay, 55Amp @ 40 Deg, 1°C/W Features DIN Rail or Panel Mount heat sink types Suitable for SSR Mounting Pre drilled for 3 x single or 1 x 3 phase SSR Black anodised for professional look Spec Crydom Part Number HS103DR Mounting Type Din Rail Suitable SSR Rating 75/90 Amp Dimensions (without SSR) L:132.1mm x W:60.2mm x 121.7mm Thermal Impedance 1°C/W Load Current @ 40 Deg C 55 Amp Load Current @ 50 Deg C 46 Amp Unit Weight 631g Factory Pack Qty 10 Datasheet Product Datasheet App Notes Why Use SSR's? The inside story Selecting a SSR DC Output SSR's Selecting a Suitable Heatsink Use of Thermal Interface Material How to Verify the Proper Heatsink Effect of Forced Air Cooling Fuse Protection of SSR's Overvoltage Protection "P" Option MOV SSR Reliability Whitepaper 3 Phase Motors and Heating Applications 3 Phase Motor Reversing How to test a SSR SSR Precautions SSR Life Expectancy MTBF ROHS & Reach Statement Heatsink SSR and Heatsink Assemblies