The MCPC4850C from Sensata / Crydom is single pole single throw SPST (1 Form A) solid state relay with NO contact configuration and screw terminal termination. This hockey puck package relay has AC, proportional control output, 0 to 10VDC input, 50A load current and 300 to 530V load voltage range. The MCPC4850C is solid state relay with 0-100% control range. For use with resistive loads only. Dimensions of this relay are: 1.78" (45.3mm) x 2.31" (58.8mm) x 0.86" (21.8mm).