The SD425AXA100120VAC is a relay designed by Struthers-Dunn, an industrial automation and control company. It is a 5-pole, AC-actuated, general purpose solid-state relay with a coil voltage of 100-120VAC. It has a maximum voltage of 480VAC, a maximum current of 25A, a power dissipation of 30W, and a switching time of l2ms. It has a minimum operating temperature of -40°C and a maximum of 85°C. It also has screw terminals for easy installation and is UL, CUL, and CE certified.