Omron E3NC-LA21 2M Photoelectric Sensor
The Omron E3NC-LA21 2M Photoelectric Sensor offers Compact Laser Sensor, Amplifier Unit, 2 outputs + 1 input, NPN output, Pre-wired 2 M Cable, 10 to 30 VDC
Power supply voltage. Manufactured by Omron under the Omron Photoelectric Sensors category, this model belongs to the Omron E3NC Series.
| Brand | Omron |
| Product | Photoelectric Sensors |
| Model Number | E3NC-LA21 2M |
Omron E3NC-LA21 2M Photoelectric Sensor – Technical Specifications
| Specification | Value |
|---|---|
| Separate Amplifier Classification | Amplifier Unit |
| Input/Output | 2 outputs + 1 input |
| Power Supply Voltage | 10 to 30 VDC |
| Output Configuration | NPN |
| Connection Method | Pre-wired 2 M Cable |
| Power Consumption | At Power Supply Voltage of 24 VDC , Normal mode: 1,560mW max. (Current consumption: 65mA max.), Eco ON: 1,320 mW max. (Current consumption: 55 mA max.), Eco LO: 1,440 mW max. (Current consumption: 60 mA max.) |
| Control Output | Load power supply voltage: 30 VDC max., open-collector output Load current: Groups of 1 to 3 Amplifier Units: 100 mA max., Groups of 4 to 30, Amplifier Units: 20 mA max. |
| Response Time | Operate or reset: 1 ms |
| Sensitivity Adjustment | Smart Tuning (2-point tuning, full auto tuning, position tuning, maximum sensitivity tuning, power tuning, or percentage tuning (−99% to +99%)), or manual adjustment. |
| Timer Function | Select from timer disabled, OFF-delay, ON-delay, one-shot, or ON-delay + OFF-delay timer: 1 to 9,999 ms |
| Indicators | 7-segment displays (Sub digital display: green, Main digital display: white) Display direction: Switchable between normal and reversed. OUT indicator (orange), L/D indicator (orange), ST indicator (blue), DPC indicator (green), and OUT selection indicator (orange, only on models with 2 outputs) |
| Ambient Temperature Range | Operating: −25 to 40°C Storage: −30 to 70°C (with no icing or condensation) |
| Ambient Humidity Range | Operating and storage: 35% to 85% (with no condensation) |
| Insulation Resistance | 20 MΩ (at 500 VDC) |
| Dielectric Strength | 1,000 VAC at 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, and output reverse polarity protection |
| Material | Polycarbonate (PC), Vinyl chloride (PVC) |
| Weight | Approx. 115 g/approx. 75 g |
The Omron E3NC-LA21 2M Photoelectric Sensor operates with a power supply voltage of 10 to 30 VDC, incorporating reverse polarity protection to ensure safe integration. This model uses an NPN output configuration and comes pre-wired with a durable 2-meter cable, suitable for fast, secure installation. Its smart tuning features—including 2-point, full auto, and percentage tuning—allow for adaptive sensitivity adjustments based on diverse object types and distances.
Designed for real-time responsiveness, the sensor boasts a 1 ms response time, while power consumption modes like Eco ON and Eco LO help reduce energy draw to as low as 1,320 mW. The device includes advanced timer functions ranging from 1 to 9,999 ms and features a multi-color digital display for clear feedback. Its robust build ensures shock resistance up to 500 m/s², vibration tolerance from 10 to 55 Hz, and reliable performance across a wide ambient range of −25 to 40°C.
With protection circuits for overcurrent and polarity errors, and high insulation resistance of 20 MΩ at 500 VDC, this laser sensor offers industrial-grade durability in a lightweight (approx. 115 g) polycarbonate housing. Trusted across machine vision, part detection, and edge positioning applications, the E3NC-LA21 2M stands as a smart investment for engineers requiring precision and reliability.
