In most procurement cycles, E3T-FT21-2M is considered with Omron SMPS 24V 10A, E3Z D61 2M and Omron Sensors, giving decision-makers confidence that theyβve chosen the most dependable component.
Omron E3T-FT21 2M Photoelectric Sensor
The Omron E3T-FT21 2M Photoelectric Sensor offers Through-beam, 300 mm Sensing distance, NPN Output, Pre-wired 2 M Cable, Red LED (650 nm), 12 to 24 VDC Power supply voltage, Light-ON mode. Manufactured by Omron under the Omron Photoelectric Sensors category, this model belongs to the Omron E3T Series.
| Brand | Omron |
| Product Type | Photoelectric Sensor |
| Model Number | E3T-FT21 2M |
Omron E3T-FT21 2M Photoelectric Sensor β Technical Specifications
| Specification | Value |
|---|---|
| Sensing Method | Through-beam |
| Sensing Distance | 300 mm |
| Standard Sensing Object | Opaque, 1.3-mm dia. min. |
| Light Source | Red LED (650 nm) |
| Power Supply Voltage | 12 to 24 VDC |
| Output configuration | NPN |
| 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: β25 to 55Β°C Storage: β40 to 70Β°C (with no icing or condensation) |
| Ambient Humidity Range | Operating: 35% to 85% Storage: 35% to 95% (with no condensation) |
| Insulation Resistance | 20 MΞ© 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 |
Built for precise and stable detection, the Omron E3T-FT21 2M delivers a compact yet powerful sensing solution using a through-beam sensing method with a 300 mm detection range. This model utilizes a Red LED (650 nm) light source and can detect opaque objects as small as 1.3 mm in diameter, making it suitable for fine object sensing in packaging, electronics, or assembly lines. The NPN open-collector output provides seamless integration with standard control systems.
With a fast 1 ms response time and robust design, this photoelectric sensor is designed to operate reliably in harsh environments. It features IP67 protection, advanced reverse polarity and short-circuit protection circuits, and withstands high vibration and shock levels (up to 1,000 m/sΒ²). A pair of indicators (orange for operation and green for stability) simplifies on-site diagnostics. Its pre-wired 2-meter cable and lightweight body (approx. 40 g) ensure easy mounting in tight spaces. Backed by Omronβs industrial-grade quality, the E3T-FT21 2M stands out for compact, accurate, and durable sensing.
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