Leuze GSL04B/1.1-30-M8.3 Fork Sensor
The Leuze GSL04B/1.1-30-M8.3 fork sensor detects 0.05 mm objects using laser red light within 30 mm fork width accurately. This Leuze Fork Sensor operates on 10–30 V DC, delivers a 5,000 Hz switching frequency, supports IO-Link with NPN/PNP switching, and uses an M8 3-pin connector. It belongs to the GS Series and features IP67 protection, 0.1 ms response time, and a metal diecast housing for industrial automation environments.
| Brand | Leuze |
| Product Type | Fork Sensors |
| Product | GSL04B/1.1-30-M8.3 |
Leuze GSL04B/1.1-30-M8.3 Fork Sensor – Technical Specifications
| Specification | Value |
|---|---|
| Series | 04B |
| Application | Detection of small parts |
| MTTF | 548.35 years |
| Light source | Laser, Red |
| Wavelength | 655 nm |
| Laser class | 1, IEC/EN 60825-1:2007 |
| Transmitted-signal shape | Pulsed |
| Minimum object diameter | 0.05 mm |
| Power Supply | 10 ... 30 V, DC |
| Open-circuit current | 0 ... 30 mA |
| Switching hysteresis | 20 µm |
| Number of digital switching outputs | 1 Piece(s) |
| Output Type | Digital switching output |
| Switching current, max. | 100 mA |
| Switching voltage | high: ≥(UB-2V) low: ≤ 2 V |
| Switching element | Transistor, Push-pull |
| Switching principle | IO-Link / light switching (NPN) / dark switching (PNP) |
| Switching frequency | 5,000 Hz |
| Response time | 0.1 ms |
| Number of connections | 1 Piece(s) |
| Connection Function | Signal OUT Voltage supply |
| Type of Connection | M8 Connector, 3 -pin |
| Design | Fork |
| Mouth width | 30 mm |
| Mouth depth | 35 mm |
| Dimension (W x H x L) | 10 mm x 50 mm x 60 mm |
| Housing material | Metal; Diecast zinc |
| Lens cover material | Glass |
| Housing color | Black, RAL 9005 |
| Type of fastening | Through-hole mounting |
| Number of LEDs | 1 Piece(s) |
| Ambient temperature | -25 ... 60 °C |
| Degree of protection | IP 67 |
| Net weight | 68 g |
The GSL04B/1.1-30-M8.3 Leuze Laser Fork Photoelectric Sensor is a GS Series fork sensor designed for precise small-part detection in industrial automation systems. The GSL04B/1.1-30-M8.3 uses laser red light at 655 nm, detects objects down to 0.05 mm, and supports IO-Link communication with push-pull digital output. This configuration ensures defined signal behavior and stable integration within automated control architectures.
In industrial applications, the GSL04B/1.1-30-M8.3 Leuze Laser Fork Photoelectric Sensor is used in conveyors, packaging machines, compact assembly lines, and inspection stations. The fork design enables consistent detection without manual alignment, while the 5,000 Hz switching frequency supports reliable operation at high cycle speeds. Its compact dimensions and through-hole mounting simplify installation in space-constrained automation systems.
The GSL04B/1.1-30-M8.3 Fork Sensor from Leuze delivers dependable performance through fast response behavior, durable metal construction, and environmental protection. With IP67 protection, controlled switching hysteresis, and long MTTF, it supports continuous industrial operation. As part of the GS Series, this fork sensor aligns with Leuze reliability standards and is suitable for long-term industrial automation deployments.

