Allen-Bradley 42GTU-9201-QDPHOTOSWITCH Photoelectric Switch

The Allen-Bradley 42GTU-9201-QD Photoelectric Switch is a compact PHOTOSWITCH sensor designed for non-contact object detection in automation systems. This Quick Disconnect (QD) variant accepts either 20-40 VAC or 10-65 VDC supply, offering flexibility for mixed electrical environments. As part of the PHOTOSWITCH family, it detects the presence or absence of targets through optical sensing, enabling reliable monitoring on conveyors, packaging lines, and assembly processes. The 42GTU-9201-QD designation identifies this specific model within the 9000-series and signals the quick-disconnect configuration for straightforward installation and field wiring. Being a QD variant, it uses a quick-disconnect mating method that supports rapid field installation and easier replacement when needed. In short, the 42GTU-9201-QD Photoelectric Switch delivers non-contact sensing with dual-supply compatibility, designed to integrate with Allen-Bradley controllers and similar PHOTOSWITCH devices on industrial automation tasks. By design, it shares a common form factor and mounting pattern with related 9200-series variants, enabling easier retrofit on existing equipment and simplifying stocking for replacement parts.