SSR 20/21 SERIES SOLID STATE RELAYS       - Pin to Pin compatible with electromechanical relays - Led input voltage - Non polarized input - Rated operational current up to 5A DC or 3A AC - Zero crossing commutation for models with AC voltage output   or instantaneous for DC voltage output models - Output voltage from 12 to 275 VAC or from 0 to 35V DC - 2500V input-output insulation - RC filter protection for AC models    Technical data (PDF Format)    Models SSR21-3240B5   SSR21-3240C5   SSR21-3240D5 SSR21-3240B     SSR21-3240C     SSR21-3240D SSR20-524B5     SSR20-524C5     SSR20-524D5 SSR20-524B       SSR20-524C       SSR20-524D