High-Power-Solid-State-Load-Relays-with-Integrated-Heatsink-DIN-Rail-Mounting-Crydom-CKRD2420-p-This-20A-solid-state-relay-has-a-control-voltage-range-of-4-to-32V-DC-&-features-an-integrated-heatsink-that-provides-efficient-thermal-management-The-safe-&-easy-to-use-terminal-connections-&-the-DIN-rail-mounting-design-make-this-SSR-quick-&-efficient-to-install-Optically-isolated-SCR-output-enables-high-switching-load-capacity-in-industrial-applications-p-Crydom-CKRD2420-Solid-State