Crydom HS151DR, Din Rail Mount Heatsink for Solid State Relays, 1.5°C/W Features DIN Rail or Panel Mount heat sink types Suitable for SSR Mounting Pre drilled for single or 3 phase SSR Black anodised for professional look Spec Crydom Part Number HS151DR Mounting Type Din Rail Suitable SSR Rating 125 Amp Dimensions (without SSR) L:152.4mm x W:152.4mm x 88.9mm Thermal Impedance 1.5°C/W Load Current @ 40 Deg C 40 Amp Load Current @ 50 Deg C 35 Amp Unit Weight 437g Factory Pack Qty 10 Datasheet Product Datasheet Mounted 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