Leuze GS04B/N.1-120-M8.3 Fork Sensor
The Leuze GS04B/N.1-120-M8.3 fork sensor detects 0.5 mm objects using red LED light across 120 mm fork width accurately. This Leuze Fork Sensor operates on 10–30 V DC, delivers a 5,000 Hz switching frequency, and uses a transistor NPN output with 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 | GS04B/N.1-120-M8.3 |
Leuze GS04B/N.1-120-M8.3 Fork Sensor – Technical Specifications
| Specification | Value |
|---|---|
| Series | 04B |
| Application | Detection of small parts |
| MTTF | 700.42 years |
| Light source | LED, Red |
| Wavelength | 660 nm |
| Laser class | - |
| Transmitted-signal shape | Pulsed |
| Minimum object diameter | 0.5 mm |
| Power Supply | 10 ... 30 V, DC |
| Open-circuit current | 0 ... 30 mA |
| Switching hysteresis | 100 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, NPN |
| Switching principle | Light/dark switchable |
| 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 | 120 mm |
| Mouth depth | 60 mm |
| Dimension (W x H x L) | 12 mm x 144 mm x 90 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 | 244 g |
The GS04B/N.1-120-M8.3 Leuze 120mm Mouth Width Fork Sensor is a GS Series fork sensor designed for reliable small-part detection in industrial automation systems. The GS04B/N.1-120-M8.3 operates using red LED light at 660 nm, detects objects as small as 0.5 mm, and provides a transistor NPN digital output. With standardized M8 connectivity and defined switching behavior, it integrates cleanly into automated control architectures.
In industrial environments, the GS04B/N.1-120-M8.3 Leuze 120mm Mouth Width Fork Sensor is applied in conveyors, packaging lines, assembly machines, and material handling systems. The 120 mm mouth width allows consistent detection without alignment complexity, while the 5,000 Hz switching frequency ensures stable operation at high cycle speeds. Through-hole mounting and metal construction support mechanical reliability in continuous-duty installations.
The GS04B/N.1-120-M8.3 Fork Sensor from Leuze delivers dependable performance through fast response characteristics, controlled hysteresis, and durable housing. With IP67 protection, stable NPN switching, and high MTTF, it supports long-term industrial use. As part of the GS Series, this fork sensor aligns with Leuze reliability standards and is suitable for structured, high-uptime industrial automation systems.

