Procurement teams shortlist E3FA-BP21 with Omron SMPS 24V 10A, E3Z D61 2M and Omron Sensors, aligning budget approvals, warranty terms, and multisite availability for smoother rollout across plants.
Omron E3FA-BP21 Photoelectric Sensor
The Omron E3FA-BP21 Photoelectric Sensor provides transparent object detection with P-opaquing function, offering a 100–500 mm sensing range (with E39-RP1), PNP output, and M12 connector. Operating on a 10–30 VDC power supply, it belongs to the Omron automation range under the Omron Photoelectric Sensors category and the Omron E3FA Series. Designed with a plastic M18 threaded barrel, this sensor ensures a fast 0.5 ms response and reliable operation for industrial automation applications.
| Brand | Omron |
| Product Type | Photoelectric Sensor |
| Model Number | E3FA-BP21 |
Omron E3FA-BP21 Photoelectric Sensor – Technical Specifications
| Specification | Value |
|---|---|
| Sensing Method | Transparent detected with P-opaquing function |
| Sensing Distance | 100 to 500 mm |
| Standard Sensing Object | glass(t = 1.0 mm): 150 × 150 mm |
| Light Source | Red LED (624 nm) |
| Power Supply Voltage | 10 to 30 VDC (include voltage ripple of 10%(p-p) max.) |
| Output configuration | PNP |
| Connection Method | M12 Connector |
| Current Consumption | 25 mA max. |
| Control Output | Load current: 100 mA max. (Residual voltage: 3 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. 60 g/ Approx. 50 g |
The Omron E3FA-BP21 Photoelectric Sensor offers reliable detection for transparent materials through its retro-reflective sensing method with P-opaquing function. It provides a 100 to 500 mm sensing range using the E39-RP1 reflector, operates on 10 to 30 VDC, and delivers a PNP output suitable for automation systems. Belonging to the Omron E3FA Series, this sensor is widely used in industrial automation applications requiring precision and environmental resistance with IP67 and IP69K protection ratings.
Within industrial automation, this sensor is utilized across packaging machinery, conveyor lines, and assembly systems where object transparency makes detection difficult. Its P-opaquing function ensures stable output even when working with glass or PET materials. The plastic housing provides mechanical strength while the M12 connector simplifies installation and maintenance. Its 0.5 ms response time supports fast-moving production lines, ensuring reliable and consistent sensing across variable lighting and environmental conditions.
The Omron E3FA-BP21 Photoelectric Sensor ensures dependable transparent object detection, while related models provide variant configurations for diverse setups. The Omron E3FA-BN21 Photoelectric Sensor offers a similar 100 to 500 mm range with NPN output instead of PNP, suitable for systems requiring sinking signals. The Omron E3FA-BP11 2M Photoelectric Sensor features a shorter 0.1 to 2 m sensing distance with a pre-wired 2 m cable connection. For installations preferring a detachable setup, the Omron E3FA-BP22 Photoelectric Sensor maintains the PNP output with an M12 connector and the same transparent detection capabilities. The Omron E3FA-BP21 thus fits mid-range detection applications in automated environments.
Engineered for reliability and precision, the Omron E3FA-BP21 Photoelectric Sensor provides stable detection for transparent targets within packaging, labeling, and assembly lines. Its robust housing, red LED light source, and compact M18 cylindrical design ensure performance stability even under washdown or dusty conditions. With its combination of sensitivity, speed, and protection, it represents Omron’s trusted quality for industrial automation across India, offering consistent detection accuracy and long operational life for process optimization.
