Maintenance teams planning replacements for MLC300T30-450 frequently review Omron Safety Light Curtain, Leuze Proximity Sensor and Leuze Safety Light Curtains to prevent downtime, checking availability and compatibility with existing systems.
Leuze MLC300T30-450 Safety Light Curtain
The Leuze MLC300T30-450 Safety Light Curtain (Part No: 68090304 ) offers a Hand protection, 450 mm protective height, M12 Connector 5-pin . Manufactured by Leuze under the Leuze Safety Light Curtain category, this model belongs to the ELC Series.

| Brand | Leuze |
| Product Type | Safety Light Curtain |
| Product | MLC300T30-450 |
Leuze MLC300T30-450 Safety Light Curtain – Technical Specifications
| Specification | Value |
|---|---|
| Series | MLC 300 |
| Device type | Transmitter |
| Contains | 2x BT-NC sliding block |
| Application | Hand protection |
| Resolution | 30 mm |
| Protective field height | 450 mm |
| Operating range | 0 ... 10 m |
| Synchronization | Optical between transmitter and receiver |
| Light source | LED, Infrared |
| Wavelength | 940 nm |
| Mean power of transmitter diode | 50 µW |
| Transmitted-signal shape | Pulsed |
| Protective circuit | Overvoltage protection, Short circuit protected |
| Supply voltage UB | 24 V, DC, -20 ... 20 % |
| Current consumption, max. | 50 mA |
| 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 516 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 | 0 ... 55 °C |
| Ambient temperature, storage | -30 ... 70 °C |
| Relative humidity (non-condensing) | 0 ... 95 % |
| Net weight | 600 g |
The Leuze MLC300T30-450 is part of the trusted MLC 300 series and delivers reliable 30 mm resolution across a protective field height of 450 mm, making it ideal for detecting hands and small objects. This safety light curtain uses a pulsed infrared LED light source operating at 940 nm wavelength to deliver consistent detection over an operating range of up to 10 meters, even in challenging lighting environments.
The transmitter operates on a robust 24 V DC power supply (±20%) with a low current draw of just 50 mA, enabling energy-efficient operation around the clock. It is protected against short circuits and overvoltage, ensuring stable performance in industrial-grade applications. With optical synchronization between the transmitter and receiver, installation is streamlined and requires fewer cables, reducing setup time.
Built for longevity, the device features a rugged aluminum housing with diecast zinc end caps and a high-clarity PMMA lens cover to withstand dust, vibrations, and mechanical impacts. The compact form factor—just 29 mm x 516 mm x 35.4 mm—allows integration in space-constrained machines. It connects via a standard M12 5-pin male connector and includes two bright LED indicators for real-time status feedback. Rated to IP65, it operates reliably in humid environments (up to 95% RH) and temperatures ranging from 0°C to 55°C, fulfilling demanding industrial safety requirements. The MLC300T30-450 stands as a robust and reliable solution in the category of safety light curtains, manufactured by Leuze.
The Leuze MLC300T30-450 Safety Light Curtain is engineered specifically for industrial machines where hand protection is critical but space is limited. Its 450 mm height and 30 mm resolution strike the right balance for guarding low-height hazardous points such as machine access doors, assembly fixtures, and compact robotic arms.
Maintenance engineers appreciate the easy groove mounting and M12 plug-and-play connector, which reduce installation time. The optical synchronization feature eliminates the need for signal cables between the transmitter and receiver, further simplifying the wiring and boosting reliability. The dual LED indicators give technicians instant visual feedback for alignment and troubleshooting, making field maintenance quicker and safer.
Whether you're designing a new machine or upgrading a legacy safety system, the Leuze MLC300T30-450 is a smart choice for ensuring compliance with safety standards without compromising on space or performance. This safety light curtain is trusted in industries like packaging, automotive, and material handling where worker safety and machine uptime go hand-in-hand.







