MLC511R30-900.1 — technical product overview
Selecting Leuze MLC511R30-900.1 starts with the relationship between its 900 mm nominal field and 30 mm resolution. The 16 ms response assigned to order code 68025309 concerns the receiver, not the complete machine safety loop.
This MLC511.1 variant has two PNP OSSDs, a 24 V DC ±20% supply and a four-pin M12 male connector. Its Basic package includes DoubleScan, automatic start/restart and transmission channel selection. A five-pin MLC510 receiver cable must not be assumed to have the same pin assignment; integration requires the diagram for the exact model.
The 900 mm nominal field is not the overall device height; this receiver has a mechanical height of 966 mm. Connector clearance, optical alignment and access around the protected opening belong in the same installation review.
The 30 mm resolution is relevant to a hand-protection assessment. Layouts that allow someone to remain behind the field may require additional measures.
Include the safety-controller delay when calculating total response together with measured machine stopping time. The Type 4 / PL e / SIL 3 device classification does not by itself establish compliance of the complete machine. This record is for the receiver only; a compatible transmitter is selected separately.
Technical specifications
| Order number | 68025309 |
|---|---|
| Model | MLC511R30-900.1 |
| Series | MLC 500 |
| Device type | Safety light curtain receiver |
| Function package | Basic / DoubleScan |
| Nominal protective field | 900 mm |
| Resolution | 30 mm |
| Sensor type | Type 4; IEC 61496 |
| Performance level | PL e; ISO 13849-1 |
| Category | 4; ISO 13849-1 |
| SIL | SIL 3; IEC 61508 / IEC 62061 |
| Mission time | 20 years |
| Receiver response | 16 ms |
| Control interface | 2 PNP OSSD |
| Supply | 24 V DC ±20% |
| Receiver current, max. | 150 mA |
| Connector | M12 male; 4 pins |
| Connector material | Metal |
| Start behavior | Automatic start/restart |
| Restart delay | 100 ms |
| Synchronization | Optical between transmitter and receiver |
| Transmission channel | Selectable |
| Dimensions (W × H × D) | 29 × 966 × 35.4 mm |
| Approximate mass | 1.05 kg |
| Housing | Aluminum |
| Optical cover | PMMA |
| Color | Yellow; RAL 1021 |
| Indicators | 2 LEDs |
| Ingress protection | IP65 |
| Protection class | III |
| Supplied component | Receiver; not a transmitter-receiver kit |
| Number of OSSDs | 2 |
| OSSD type | PNP; +24 V switching |
| OSSD load, max. | 380 mA per output |
| Scanning function | DoubleScan |
Selection and commissioning
Use the exact-model wiring diagram, isolate energy before work, and have a competent person validate both the protection function and the restart behavior. Verify the required safety distance with the actual machine stopping time.
Frequently asked questions
Is MLC511R30-900.1 a transmitter-receiver kit?
No. Order code 68025309 specifies the receiver only. Select a compatible transmitter and connection accessories separately.
Is 900 mm the overall body height?
No. The nominal field is 900 mm; the mechanical height is 966 mm, excluding installation clearance.
How is MLC511R30-900.1 connected?
It uses 2 PNP OSSD with a 4-pin M12 male connector. Supply: 24 V DC ±20%. Check the exact-model pin assignment before connection.
Does 16 ms describe the complete stopping time?
No. It is the receiver response. Add controller/network delays and the measured stopping time of the machine.
Automation engineering support
For MLC511R30-900.1 (68025309), specify quantity, access geometry, required safety level and control interface. Quote the receiver, transmitter, cable and mounting scope separately. Price and delivery are confirmed during quotation.
