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Leuze MLC310R20-1350 Safety Light Curtain

| Brand | Leuze |
| Product Type | Safety Light Curtain |
| Model Number | MLC310R20-1350 |
Leuze MLC310R20-1350 Safety Light Curtain – Technical Specifications
| Specification | Value |
|---|---|
| Series | MLC 300 |
| Device type | Receiver |
| Contains | 2x BT-NC sliding block |
| Application | Hand protection |
| Functions | Automatic start/restart, Transmission channel changeover |
| Resolution | 20 mm |
| Protective field height | 1,350 mm |
| Synchronization | Optical between transmitter and receiver |
| Protective circuit | Overvoltage protection, Short circuit protected |
| Supply voltage UB | 24 V, DC, -20 ... 20 % |
| Current consumption, max. | 150 mA |
| Number of safety-related switching outputs (OSSDs) | 2 Piece(s) |
| Safety related switching output Type | Safety-related switching output OSSD |
| Switching voltage high, min. | 18 V |
| Switching voltage low, max. | 2.5 V |
| Switching voltage, typ. | 22.5 V |
| Voltage type | DC |
| Current load, max. | 380 mA |
| Load inductivity | 2,000 µH |
| Load capacity | 0.03 µF |
| Residual current, max. | 0.2 mA |
| Voltage drop | 1.5 V |
| O/P 1: Switching Principle | 24 V switching |
| O/P 1: Switching Output | Transistor, PNP |
| O/P 2: Switching Principle | 24 V switching |
| O/P 2: Switching Output | Transistor, PNP |
| Response time | 24 ms |
| Restart delay time | 100 ms |
| Number of connections | 1 Piece(s) |
| Function | Machine interface |
| Type of connection | M12 Connector 5-pin |
| Type | Male |
| Dimension (W x H x L) | 29 mm x 1,416 mm x 35.4 mm |
| Housing material | Metal: Aluminum |
| Lens cover material | Plastic / PMMA |
| Material of end caps | Diecast zinc |
| Housing color | Yellow, RAL 1021 |
| Type of fastening | Groove mounting, Mounting brackets, Mounting on Device Column, Swivel mount |
| Type of display | LED |
| Number of LEDs | 2 Piece(s) |
| Degree of protection | IP 65 |
| Protection class | III |
| Ambient temperature, operation | -15 ... 55 °C |
| Ambient temperature, storage | -30 ... 70 °C |
| Relative humidity (non-condensing) | 0 ... 95 % |
| Net weight | 1,500 g |
The Leuze MLC310R20-1350 Safety Light Curtain offers a resolution of 20 mm and a protective field height of 1,350 mm, making it ideal for hand detection in high-risk zones of industrial machinery. It operates on a 24 V DC supply with a wide voltage tolerance range of ±20% and consumes a maximum of 150 mA, ensuring both energy efficiency and reliable performance. The receiver uses optical synchronization with its transmitter unit, simplifying wiring and reducing setup time during installation.
This model includes 2 PNP OSSD outputs with a typical switching voltage of 22.5 V and maximum current load of 380 mA, offering fast and dependable machine stop signals. Its response time is 24 ms, helping to meet stringent safety regulations without sacrificing cycle times. Built-in protections such as short circuit protection, overvoltage protection, and compliance with Protection Class III standards ensure long-term stability in tough working environments.
Mechanically, the device is housed in a durable aluminum body with diecast zinc end caps and an IP65-rated enclosure that resists dust and water ingress. It measures 29 mm x 1,416 mm x 35.4 mm and features a 5-pin M12 male connector for plug-and-play integration. LED indicators provide real-time status updates, reducing troubleshooting time for maintenance teams. These robust design elements make the Leuze MLC310R20-1350 a dependable choice for factories focused on enhancing worker safety and reducing downtime.
The Leuze MLC310R20-1350 Safety Light Curtain is specifically designed for hand protection in automated manufacturing lines, where operator safety is critical during machine interaction. It is widely used in packaging machines, robotic cells, CNC systems, and press applications that require dependable sensing across tall machine openings. The 1,350 mm sensing height ensures complete vertical coverage, protecting operators as they load, unload, or adjust components near moving parts.
Thanks to its 24 ms response time, this light curtain stops machine motion almost instantly when an obstruction enters the protected field. The 20 mm resolution supports precise hand detection, making it compliant with global safety regulations such as EN ISO 13849 and IEC 61496. The model’s sturdy construction and optical sync technology minimize wiring complexity and increase reliability — especially in Indian factory conditions where humidity, dust, or vibration may be present.
For engineers, the Leuze MLC310R20-1350 is not just a safety device—it’s a productivity enabler. With fast commissioning, intuitive LED feedback, and minimal maintenance needs, this model allows teams to maintain high output while protecting people. Whether you're upgrading old safety systems or designing new machinery, this model delivers proven performance and peace of mind.




