Sick GLL170T-B434 Fiber Optic Sensor
Sick GLL170T-B434 Fiber Optic Sensor delivers visible red LED detection with selectable PNP/NPN output and 10–30 V DC supply. This Sick Fiber Optic Sensor supports 0–350 mm proximity sensing and up to 1,100 mm through-beam sensing, uses 632 nm LED light, offers ≤ 250 µs or ≤ 50 µs selectable response time, and operates at 2–10 kHz switching frequency in a compact rectangular housing.

| Brand | Sick |
| Product Type | Fiber Optic Sensor |
| Model Number | GLL170T-B434 |
Sick GLL170T-B434 Fiber Optic Sensor – Technical Specifications
| Specification | Value |
|---|---|
| Device type | Fiber-optic sensors |
| Dimensions (W x H x D) | 10 mm x 31.7 mm x 72.5 mm |
| Housing design (light emission) | Rectangular |
| Sensing range max. | 0 mm ... 400 mm, Proximity system 1) 2)0 mm ... 1,320 mm, Through-beam system 3) |
| Sensing range | 0 mm ... 350 mm, Proximity system 1) 2)0 mm ... 1,100 mm, Through-beam system 3) |
| Type of light | Visible red light |
| Light source | LED |
| Wave length | 632 nm |
| Indication | Display |
| Supply voltage | 10 V DC ... 30 V DC 1) |
| Current consumption | 40 mA 3) |
| Switching output | PNPNPNSelectable via menu |
| Switching mode | Light/dark switching |
| Response time | ≤ 250 µs, Selectable via menu ≤ 50 µs |
| Switching frequency | 2 kHz10 kHz |
| Connection type | Male connector M8, 4-pin |
| Housing material | Plastic, PC/POM |
| Ambient operating temperature | –25 °C ... +55 °C |
| Ambient temperature, storage | –40 °C ... +70 °C |
| Weight | 22 g |
The Sick GLL170T-B434 Fiber Optic Sensor is a compact optical sensing device designed for accurate object detection in industrial automation systems. This Sick Fiber Optic Sensor operates on a 10–30 V DC supply, provides selectable PNP/NPN switching output, and uses visible red LED light at 632 nm. The GLL170T-B434 belongs to the GLL series and is used where stable and configurable sensing is required.
In industrial automation environments, the Sick GLL170T-B434 Fiber Optic Sensor is applied in conveyors, packaging equipment, automated assembly stations, and material handling systems. Its selectable response time down to ≤ 50 µs supports detection of fast-moving objects, while adjustable switching modes allow flexible integration. The compact housing and M8 connector simplify installation in space-limited machine designs.
The Sick GLL170T-B434 Fiber Optic Sensor delivers predictable sensing performance through defined sensing ranges, controlled switching frequencies, and stable optical output. With durable plastic housing, controlled current consumption, and configurable output behavior, this Sick GLL170T-B434 model is suitable for continuous industrial operation. It aligns with standard industrial automation requirements for dependable fiber optic sensing.




