Home Products Photoelectric Sensors Omron E3FA Series E3FA-RN21 Omron E3FA-RN21 Photoelectric Sensor Omron E3FA-RN21 is an NPN retro-reflective photoelectric sensor with a 0.1–4 m sensing distance and an M12 connector. It works with the E39-R1S reflector, its MSR (mirror surface rejection) function prevents shiny objects from being mistaken for the reflector, and the connector lets you replace the sensor while keeping the machine-side cable. For the same sensor with a fixed cable, see the E3FA-RN11 2M. It is part of the Omron E3FA Series . Explore more Omron photoelectric sensors .
Brand Omron Product Photoelectric Sensors Model Number E3FA-RN21
Omron E3FA-RN21 Photoelectric Sensor – Technical Specifications Specification Value Sensing Method Retro-reflective with MSR function Sensing Distance 0.1 to 4 m with E39-R1S Standard Sensing Object Opaque: 75 mm dia.min Light Source Red LED (624 nm) Power Supply Voltage 10 to 30 VDC (include voltage ripple of 10%(p-p) max.) Output Configuration NPN Connection Method M12 Connector Current Consumption 25 mA max. Control Output Load current: 100 mA max. (Residual voltage: 2 V max.), Load power supply voltage: 30 VDC max. Operation Mode Light-ON/Dark-ON selectable by wiring Response Time 0.5 ms Sensitivity Adjustment One-turn adjuster Indicators Operation indicator (orange) Stability indicator (green) Ambient Illumination Incandescent lamp: 3,000 lx max./ Sunlight: 10,000 lx max. Ambient Temperature Range Operating: -25 to 55°C/ Storage: -40 to 70°C (with no icing or condensation) Ambient Humidity Range Operating: 35 to 85%/ Storage: 35 to 95% (with no condensation) Insulation Resistance 20 MΩ min. at 500 VDC Dielectric Strength 1,000 VAC at 50/60 Hz for 1 min. between current-carrying parts and case Vibration Resistance Destruction: 10 to 55 Hz, 1.5 mm double amplitude for 2 hours each in X, Y and Z directions Shock Resistance Destruction: 500 m/s2 3 times each in X, Y and Z directions Protection Circuits Power supply reverse polarity protection, Output short-circuit protection, and Output reverse polarity protection Degree Of Protection IEC: IP67, DIN 40050-9: IP69K Material ABS, PMMA, POM, POM Weight Approx. 20 g/ Approx. 10 g
