UL; CSA; VDE. Derating will limit the maximum load current at temperatures above 25 °C. Heat sink not included. For load current de-rating and heat sink details see manufacturers datasheet. D/TD 20-40A, 240Vac, ac O/P, Dual & Quad SSRs. Zero Voltage Switching Integral snubber circuit Dimensions: H33.2 x W45.7 x D58.4mm Terminal Type Fastons; Square Pins 8pF Input-Output Capacitance