The Siemens 3RG4014-0KB60 is an M31 inductive proximity switch in a stainless steel housing, rated for 20-265 V AC/DC supply and offering a 10 mm sensing range. This is a wide-voltage universal sensor that works across both AC and DC control circuits without needing a separate power supply variant.
The 20-265 V AC/DC supply range means this sensor can be dropped into panels running 24 VDC control, 120 VAC lighting circuits, or 230 VAC motor control without a transformer swap. The 10 mm sensing distance is standard for an M31 inductive prox — enough for detecting ferrous targets through a thin non-ferrous barrier, but not for flush-mount applications where derating applies.