The RS Pro DC switching for solid state relays with integral heatsink offer the user an excellent alternative to conventional relays. Comes equipped with an IP20 touch-safe cover can be easily detached to accommodate Ring Terminal connections and then be added back onto the relay. Integrated cooling fans are supplied with higher-rated relays, such as 20A rated current.DC Panel Mount SSR High voltage 200VDC 20A 4.5 - 32VDC Control Voltage, with LED indication High switching frequency 1000Hz Clip on IP20 terminal Cover Self-lifting terminals Isolation input / output 3750 Vrms Operational voltage 1 VDC -60 VDC Leakage current @ rated voltage 0.1 mADC Pickup voltage 4 VDC Dropout voltage 1.2 VDC Response pickup <100 Us Operating Temp -200°C to 800°C (-40°F - 1760°F)