Series 318BOperating principle Throughbeam principleDevice type ReceiverOperating range 0 ... 10 mOperating range limit 0 ... 15 mProtective circuit Polarity reversal protectionShort circuit protectedSupply voltage UB 10 ... 30 V, DC, Incl. residual rippleResidual ripple 0 ... 15 %, From UBOpen-circuit current 0 ... 15 mANumber of digital switching outputs 2 Piece(s)Switching element Transistor, PNPSwitching principle Light switchingSwitching element Transistor, PNPSwitching principle Dark switchingSwitching frequency 500 HzResponse time 1 msType of connection ConnectorThread size M12Material PlasticNo. of pins 4 -pin