The Siemens 3RG7401-7CH61 is a SIMATIC PXO320 K20 retro reflective sensor with an integrated polarisation filter. It operates on DC 10-30 V, provides a sensing range of 3.5 m, and delivers a PNP output rated at 100 mA. The output is programmable for light-on or dark-on operation. The housing measures 31 x 20 x 12 mm, terminates in an M8 4-pole connector, and carries an IP67 rating. The description notes an extended sensing range.
Siemens 3RG7401-7CH61 Retro Reflective Sensor, EOL Hot
MPN3RG7401-7CH61
End of Life
Siemens SIMATIC PXO320 K20 retro reflective sensor, 31x20x12 mm, DC 10-30V, 3.5 m range, PNP, light/dark-on programmable, 100 mA, M8 4-pole, IP67, extended sensing range.
Sourced new & surplus through independent channelsAuthenticity-screened · ESD-safe packingListing updated Jul 2026
Product details
Frequently asked questions
What is the supply voltage and connector type?
It operates on DC 10-30 V and terminates in an M8 4-pole connector.
MPN
3RG7401-7CH61