Omron E3JM-R4M4-US Photoelectric Sensor
The Omron E3JM-R4M4-US Photoelectric Sensor offers retro-reflective with MSR function , ensuring accurate object detection up to a 4 m sensing distance when using the E39-R1 reflector. It operates on 12 to 240 VDC and 24 to 240 VAC power, providing a durable relay output connection through a terminal block design. Belonging to the Omron automation range under the Omron Photoelectric Sensors category and the Omron E3JM Series, it includes a SPDT control output (250 VAC, 3A max.), Light-ON/Dark-ON selectable mode, 30 ms response time, and IP66 protection for reliable industrial use.
| Brand | Omron |
| Product | Photoelectric Sensors |
| Model Number | E3JM-R4M4-US |
Omron E3JM-R4M4-US Photoelectric Sensor – Technical Specifications
| Specification | Value |
|---|---|
| Sensing Method | Retroreflective with MSR function |
| Sensing Distance | 4 m (When using E39-R1) |
| Standard Sensing Object | Opaque: 75-mm dia. min. |
| Light Source | Red LED (660 nm) |
| Power Supply Voltage | 12 to 240 VDC, ripple (p-p): 10% max. 24 to 240 VAC, 50/60 Hz |
| Output Configuration | Relay |
| Connection Method | Terminal block |
| Power Consumption | 2 W max., 2 W max. |
| Control Output | SPDT, 250 VAC, 3A (cosφ=1) max., 5 VDC, 10 mA min. |
| Operation Mode | Light-ON Dark-ON (switch selectable) |
| Response Time | Operate or reset: 30 ms max. |
| Timer Function | ON-delay/OFF-delay/One-shot delay switch selectable |
| Ambient Illumination | Incandescent lamp: 3,000 lx max. |
| Ambient Temperature Range | Operating: −25°C to 55°C, Storage: −30°C to 70°C (with no icing or condensation) |
| Ambient Humidity Range | Operating: 45% to 85% (with no condensation), Storage: 35% to 95% (with no condensation) |
| Insulation Resistance | 20 MΩ min. at 500 VDC |
| Dielectric Strength | 2,000 VAC, 50/60 Hz for 1 min. |
| Vibration Resistance | 10 to 55 Hz, 1.5-mm double amplitude for 2 hours each in X, Y, and Z directions |
| Shock Resistance | 500 m/s2 3 times each in X, Y, and Z directions, 100 m/s2 3 times each in X, Y, and Z directions |
| Degree Of Protection | IEC 60529: IP66 |
| Material | ABS (Acrylonitril Butadiene Styrene), Methacrylic resin, Polycarbonate, Iron |
| Weight | Approx. 160 g |
The Omron E3JM-R4M4-US Photoelectric Sensor delivers exceptional sensing performance with a retroreflective MSR configuration, capable of detecting opaque objects up to 4 meters using the E39-R1 reflector. Powered by a wide voltage range of 12 to 240 VDC/AC, it provides versatile integration across various control systems. Its SPDT relay output supports up to 250 VAC at 3A, ensuring reliable switching for industrial loads.
This sensor includes a Red LED light source (660 nm) and a selectable Light-ON/Dark-ON mode, giving engineers flexible deployment options in manufacturing lines and packaging systems. The integrated delay timer supports ON-delay, OFF-delay, and one-shot configurations, allowing for fine-tuned response control. The robust IP66-rated housing, built with ABS and polycarbonate, withstands tough environmental conditions, including vibration, shock, and ambient illumination up to 3,000 lx.
With a fast 30 ms response time, high mechanical durability, and compact terminal block design, the E3JM-R4M4-US remains a trusted solution for material handling, logistics, and industrial sensing applications.
