Photoelectric Sensors
SICK GTB2S-N1451 Photoelectric sensor
SICK GTB2S-N1451 miniature background suppression sensor, 2-120 mm, NPN, part 1060203. Precise small-part detection where mounting space is limited.
Overview
The SICK GTB2S-N1451 (part number 1060203) is a miniature photoelectric sensor with background suppression from the G2 family. It covers a sensing range of 2 mm to 120 mm with NPN switching output and operates from a 10 V DC to 30 V DC supply. The very small housing is intended for machines where full-size photoelectric sensors do not fit.
How It Works
Like the larger GTB background-suppression models, the sensor measures the distance of the reflected light with a position-sensitive receiver. Objects inside the set switching distance are detected; surfaces behind the switching point are suppressed. The result is a sharply defined detection zone that stays stable regardless of whether the target is dark, bright, or glossy.
Key Features
- Miniature G2 housing for installation in extremely tight spaces
- Sensing range 2 mm ... 120 mm with adjustable switching point
- NPN switching output for common PLC input cards
- Supply voltage 10 V DC ... 30 V DC
- Distance-based background suppression, independent of object color
- Precise light spot for reliable detection of small parts
Typical Applications
- Small-part detection in electronics assembly equipment
- Gripper and vacuum cup monitoring on compact robot tooling
- Presence checks inside sliding mechanisms and magazine feeds
- Monitoring of components where mounting space is under 25 mm
- Verification of insert position in jig and fixture building
Specifications
Attribute | Value |
|---|---|
Model | SICK GTB2S-N1451 |
Part number | 1060203 |
Detection principle | Diffuse photoelectric with background suppression |
Sensing range | 2 mm ... 120 mm |
Output type | NPN switching output |
Supply voltage | 10 V DC ... 30 V DC |
Installation and Setup Notes
Because the housing is miniature, plan cable strain relief carefully so the connection is not stressed during machine operation. Set the switching point with the real target installed, and re-check after maintenance tasks that may have moved the sensor. On short-range background-suppression sensors, keep the front lens clean; even thin dust films reduce the usable margin at close distances.
Frequently Asked Questions
What output type does the GTB2S-N1451 use?
It uses an NPN switching output, suited to PLC inputs that switch to ground. PNP versions of the G2 family are available for markets that prefer sourcing outputs.
How far can it detect?
The sensing range extends from 2 mm up to 120 mm, with the switching point set to the target distance.
Can it detect small electronic components?
Yes. The miniature housing and precise light spot make it suitable for small-part detection where larger sensors cannot be mounted.
Related Photoelectric Sensors
The SICK GTB2F-N1131 offers a related G2-family variant, while the SICK GL6-P4212 provides a miniature dual-lens option for small-part detection.
