Sick IN4000 Inductive Safety Switch, 24 V dc, 3NO, Plastic, M12 Plug, Switch Type: Cuboid, Actuator Type: Magnetic, Switching Distance: 15 (On) mm, 30 (Off) mm, Terminal Type: 4-Pin M12 Connector, IP Rating: IP67, Depth: 66mm, Dimensions: 40 x 40 x 66 mm, Length: 40mm, MPN: IN40-D0101K