Through Beam, Retroreflective and Diffuse versions available Food industry compatible ABS Case, acrylics lens, PC Cover. IP66. LED indication N/O and N/C (selectable) Response time 30ms Max (version without delay timer) Load switching relay SPCO type, rated to 3A (resistive) at 250 Vac Delay timer versions have selection of ON delay, OFF delay and ONE-SHOT (except 256-427:256-433 & 256-449) outputs with delay times of 0.1 to 5 seconds (variable) Through beam version supplied as a transmitter and receiver pair Operating mode: Light ON/Dark ON (selectable) Retroreflective version employs polarised light to reduce false triggering. Reflector type E39-R1 included Operating temperature range -25° → +55° C Relay compatibility 5Vac 10A min. Teminal block, PG13.5 entry Power rating: Through beam 3W, remainder 2W Mounting bracket and Cable glands included