M18x55mm metal surface proximity switch proximity switch M18mm diameter metal surface diameter: 18mm Installation: flush / non-flush sensing distance: 5mm/8mm / 8mm/16mm Case Material: Stainless steel work instructions: With LED working voltage :10-30V DC lines Wave: <10% No load current <10mA maximum load current: 200mA Leakage current: <0.01mA Voltage drop: <1.5V switching frequency: 2KHZ Response Time: 0.2ms / 0.5ms switching hysteresis: <15% (Sr) repeat Accuracy: <1.0% (Sr) Protection: IP67 job stability: -25 - +70 (Celsius) temperature drift: <10% (Sr) Short circuit protection: Reverse polarity protection: Yes Overload Protection: Yes sensing face material: stainless steel Specifications Model: 10-30V DC 3-wire NPN normally open: MB5A-1805N-A3W2 / MB5A-1808N-A3W2 (flush) MB5B-1808N-A3W2 / MB5B-1816N-A3W2 (non-flush) 10-30V DC 3-wire NPN normally closed: MB5A-1805N-BEW4 / MB5A-1808N-BEW4 (flush) MB5B-1808N-BEW4 / MB5B-1816N-BEW4 (non-flush) 10-30V DC 3-wire PNP normally open: MB5A-1805P-A3W2 / MB5A-1808P-A3W2 (flush) MB5B-1808P-A3W2 / MB5B-1816P-A3W2 (non-flush) 10-30V DC 3-wire PNP normally closed: MB5A-1805P-BEW4 / MB5A-1808P-BEW4 (flush ) MB5B-1808P-BEW4 / MB5B-1816P-BEW4 (non-flush) Wiring: Brown Line (+), Blue Line (-), black line (load) connection: 2M PVC cable, M12 connector Weight: about 153g