Heat Dissipation Sink 10A-40A Solid State Relay - SSR Aluminum Heat Sinks Relay Cooling Fins Uses: Suitable for single-phase solid state relays, can help SSR better heat dissipation, is a good partner for temperature controllers and other mechanical control systems , Size: 4., 2cm x 8cm x 5cm / 1., 7 x 2., 4 x 3., 2 (L*W*H). SSR single-phase relay cooling base suit for relay 10A-40A. Heat Sink only, Relay not included here. Made of durable aluminum material, mountable heat sink design, compact size, easy to install. Fit for: Relay 10A-40A Applicable to: Solid State Relay SSR-10A, 25A, 40A. The controller is designed with integrated heat dissipation mode. There are no movable contact parts on and off. It has high structural strength, dust-proof... Package Includes: 3 x Aluminum Single Phase Solid State Relay , 6 x Screws Aluminum Heat Sink Dissipation Radiator Rail Mount Suitable For Single Phase Solid State Relay Ssr 40da 10a 25a 40a 60a 80a Ssr 2a63c22f 21fe 4398 911e 9de634a21c8d.f23dc41b2a70ac7cf216a8e854bb60cc After-Sales Guarantee: Aracombie has a 24-hour human customer service.