Procurement teams shortlist E3JK-RN12-2M 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 E3JK-RN12 2M Photoelectric Sensor
The Omron E3JK-RN12 2M Photoelectric Sensor features retro-reflective with MSR function, NPN output, and 100 mm to 6 m range when using the E39-R1 reflector. It operates on DC power supply (10–30 VDC) and belongs to the Omron industrial automation range under the Omron Photoelectric Sensors category and the Omron E3JK Series. Equipped with a red LED light source, 2 m pre-wired cable, and without reflector, it ensures stable object detection and dependable operation in industrial environments.
| Brand | Omron |
| Product Type | Photoelectric Sensor |
| Model Number | E3JK-RN12 2M |
Omron E3JK-RN12 2M Photoelectric Sensor – Technical Specifications
| Specification | Value |
|---|---|
| Sensing Method | Retro-reflective with MSR function |
| Sensing Distance | When using the E39-R1: 100 mm to 6 m; When using the E39-R2: 100 mm to 10 m |
| Light Source | Red LED (624 nm) |
| Power Supply Voltage | 10 to 30 VDC, including ripple (p-p): 10% |
| Output configuration | NPN |
| Connection Method | Pre-wired 2 M Cable |
| Power Consumption | 30 mA max. |
| Control Output | Load power supply voltage: 30 V max., Load current: 100 mA max., Residual voltage: 3 V max. |
| Operation Mode | Light-ON/Dark-ON selectable |
| Response Time | 1 ms max. |
| Sensitivity Adjustment | One-turn adjuster |
| Ambient Illumination | Incandescent lamp: 3,000 lx max., Sunlight: 11,000 lx max. |
| Ambient Temperature Range | Operating: −25°C to 55°C, Storage: −40°C 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 | 1,500 VAC, 50/60 Hz for 1 min |
| Vibration Resistance | 10 to 55 Hz with a 1.5 mm double amplitude for 2 hours each in X, Y, and Z directions |
| Shock Resistance | 500 m/s2 for 3 times each in X, Y, and Z directions |
| Protection Circuits | Power supply reverse polarity protection, Output short-circuit protection, Mutual interference, prevention function, and Output reverse polarity protection |
| Degree of Protection | IEC 60529 IP64 |
| Material | ABS (Acrylonitrile Butadiene Styrene), Methacrylic resin, POM, PVC |
| Weight | Approx. 160 g |
The Omron E3JK-RN12 2M Photoelectric Sensor is a long-range retro-reflective sensor designed for stable object detection in industrial automation. It operates within a 10–30 VDC supply range and delivers NPN output switching performance suitable for various control circuits. With a 6–10 meter sensing distance when paired with the E39-R2 reflector, this model provides consistent results even in environments with fluctuating light conditions. The sensor’s IP64 protection rating ensures durability against dust and splashes, making it reliable for continuous factory operation. Belonging to the Omron E3JK Series, it combines simplicity with performance consistency across different automation applications.
This Omron E3JK-RN12 2M model supports Light-ON/Dark-ON selectable modes and includes protection features such as output short-circuit protection and power supply reverse polarity protection. It also features an adjustable sensitivity control through a one-turn adjuster, allowing precise calibration for different target materials and distances. The compact ABS body and pre-wired 2 m cable make installation straightforward while maintaining robust mechanical resistance. As part of Omron’s proven photoelectric sensing technology, the E3JK-RN12 2M offers dependable sensing for both reflective and non-reflective surfaces.
In industrial applications, this sensor is ideal for conveyor systems, automated packaging lines, material handling equipment, and robotic work cells. It helps detect products, verify positioning, and control machine operations with minimal human intervention. The long detection distance allows flexible installation while maintaining high accuracy in object detection. Industries such as food processing, automotive, and logistics benefit from its ability to function reliably under variable lighting and ambient conditions.
The Omron E3JK-RN12 2M Photoelectric Sensor is a retro-reflective DC sensor equipped with an MSR (Mirror Surface Rejection) function, ensuring stable detection even on shiny surfaces. It offers a sensing distance of 100 mm to 6 m when used with the E39-R1 reflector, featuring a red LED light source, NPN output, and a pre-wired 2 m cable. For users needing a similar NPN type without the MSR feature, the Omron E3JK-RN11 2M Photoelectric Sensor provides a slightly extended sensing range of 100 mm to 7 m using the same E39-R1 reflector. If infrared LED detection is preferred for reduced ambient light interference, the Omron E3JK-RN13 2M Photoelectric Sensor delivers reliable performance across a 7 m range. Meanwhile, for applications requiring AC/DC versatility and relay output, the Omron E3JK-RR12 2M Photoelectric Sensor supports a 6 m sensing range with the E39-R1 and extends up to 10 m with the E39-R2 reflector, offering broader compatibility for industrial automation setups.
The Omron E3JK-RN12 2M Photoelectric Sensor is a trusted solution for engineers who require stability and performance in optical sensing. Its combination of 6–10 m detection range, 10–30 VDC operation, and NPN output provides compatibility with most industrial controllers and PLCs. As a part of the E3JK Series, it reinforces Omron’s reputation for durable and consistent sensors in automation systems. With IP64 protection and a reliable optical system, it remains a preferred choice for long-term and maintenance-free operation across multiple industries.
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