Part in brief
Omron E3SCT61D5MOMS, E3S-C series through-beam photoelectric sensor. Pushes a 30 m sensing distance across the gap, NPN or PNP selectable output, 100 mA max load. Switches in 1 ms. Cable run is 5 m, sealed to IP67. Power from 10 to 30 VDC, temperature range -25 to 55 °C.
Where it fits
DIN-rail or bracket mount, 23 mm wide × 20 mm high × 57 mm deep. Spring terminals on the 5 m cable: brown (10-30 V), blue (common), black (NPN output), white (PNP output). Light-ON / Dark-ON mode selectable via wire connection. Align emitter and receiver within the 30 m range; minimal dead zone. IP67 handles washdown on conveyor or packaging lines.
Sibling delta: E3SCT112MOMS
Same series, same sensing distance (30 m), same output type and speed. The E3SCT112MOMS shrinks the body to 20.4 × 23 × 50 mm and ships with 2 m cable. Choose the 61D5MOMS when you need the full 5 m cable and can accommodate the slightly wider (23 mm vs 20.4 mm) and longer (57 mm vs 50 mm) body. Both sit in the E3S-C family; mounting hole patterns differ.