Omron E3T-ST13 2M Photoelectric Sensor
The Omron E3T-ST13 2M Photoelectric Sensor is an ultracompact through-beam offering a 1 m sensing distance, PNP output, Light-ON operation, and a red LED (650 nm) light source. It operates on a 12 to 24 VDC power supply and includes a 2 m pre-wired cable for secure connectivity. Part of the Omron automation lineup under the Omron Photoelectric Sensors category and the Omron E3T Series, it supports opaque objects of 2 mm dia. minimum, ensures IP67 protection, 1 ms response time, and 30 mA max. current consumption for reliable and durable industrial performance.
| Brand | Omron |
| Product | Photoelectric Sensors |
| Model Number | E3T-ST13 2M |
Omron E3T-ST13 2M Photoelectric Sensor – Technical Specifications
| Specification | Value |
|---|---|
| Sensing Method | Through-beam |
| Sensing Distance | 1 m |
| Standard Sensing Object | Opaque, 2-mm dia. min. |
| Light Source | Red LED (650 nm) |
| Power Supply Voltage | 12 to 24 VDC , ripple (p-p) 10% max. |
| Output Configuration | PNP |
| Connection Method | Pre-wired 2 M cable |
| Current Consumption | 30 mA max. (Emitter 10 mA max., Receiver 20 mA max.) |
| Control Output | Load power supply voltage: 26.4 VDC max. Load current: 50 mA max. (residual voltage: 2 V max. for load current of 10 to 50 mA, 1 V max. for load current of less than 10 mA) Open-collector output |
| Operation Mode | Light-ON |
| Response Time | Operate or reset: 1 ms max. |
| Indicators | Operation indicator (orange), Stability indicator (green) |
| Ambient Illumination | Incandescent lamp: 5,000 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 | AC1,000V, 50/60 Hz for 1 min. |
| Vibration Resistance | 10 to 2,000 Hz, 1.5-mm double amplitude or 300 m/s2 for 0.5 hours each in X, Y, and Z directions |
| Shock Resistance | 1,000 m/s2 3 times each in X, Y, and Z directions |
| Protection Circuits | Power supply and control output reverse polarity protection, Output short-circuit protection |
| Degree Of Protection | IEC 60529 IP67 |
| Material | PBT (polybutylene terephthalate), Denatured polyarylate |
| Weight | Approx. 40 g |
The Omron E3T-ST13 2M operates using a through-beam detection method, allowing it to detect opaque objects as small as 2 mm at distances up to 1 meter. It features a red LED light source (650 nm), Light-ON mode configuration, and PNP open-collector output to suit a range of automation control systems. Powered by a 12 to 24 VDC supply, this sensor supports fast and accurate detection cycles with a 1 ms response time—ideal for sorting, material handling, and robotic applications.
It includes orange operation and green stability indicators for real-time diagnostics and is fitted with a 2-meter pre-wired cable for easy field installation. Energy efficiency is ensured with a max current consumption of 30 mA shared across the emitter and receiver. Integrated reverse polarity protection and short-circuit protection help maintain system safety and stability even in high-interference environments.
Built with rugged PBT and denatured polyarylate housing, the Omron E3T-ST13 2M Photoelectric Sensor is IP67-rated under IEC 60529, delivering reliable operation under exposure to water, dust, vibration (up to 2,000 Hz), and shock (up to 1,000 m/s²). Its ultracompact footprint and lightweight 40 g build make it perfect for space-constrained industrial panels.
