The Siemens 3RG7420-0GB00 is a SIMATIC PXO310 K21R diffuse photoelectric sensor, built for energetic detection in the 31x20x12 mm housing. It runs on DC 10-30V, switches NPN light-on at 150 mA, and sees targets out to 500 mm. The cable is 2 m of PUR-jacketed 3x0.14 sqmm, and the optics are M18 threaded, sealed to IP68.

Siemens 3RG7420-0GB00 SIMATIC PXO310 K21R Diffuse Sensor, NP
MPN3RG7420-0GB00
End of Life
Siemens SIMATIC PXO310 K21R, 3RG7420-0GB00, diffuse sensor, energetic, DC 10-30V, 500mm range, NPN light-on, 150mA, cable 2m PUR, 3x0.14 sqmm, IP68, M18 optics.
Source DocumentedChannel stated on listing & quote
Condition PhotosReal unit photos / video on request
WhatsApp AnswersFast human replies for machine-down parts
Worldwide DispatchDHL/FedEx — transit quoted per order
Independent China distributor & sourcing agent· Listing updated Sep 2026
Product details
Frequently asked questions
What is the sensing range and output type of this sensor?
It is a diffuse sensor with a 500 mm range, NPN output, light-on switching, rated at 150 mA. Supply is DC 10-30V.
What is the IP rating and cable specification?
IP68, with a 2 m PUR cable, 3x0.14 sqmm conductors. The optics are M18 threaded.
MPN
3RG7420-0GB00