Banner Engineering OTBVR81LQD Optical Touch Button

The Banner Engineering OTBVR81LQD Optical Touch Button is a momentary-action, zero-force input device that replaces mechanical push buttons in control panels and operator interfaces. It accepts 20-30 V AC or DC power and provides a SPDT electromechanical relay output, enabling relay-based signaling without a physical button. The unit features a red primary housing with a black field cover, a polycarbonate upper housing, and a mini-style integral quick-disconnect connection for fast, tool-free wiring. As part of Banner’s OPTO-TOUCH OTB series, the button delivers touch-actuated control that minimizes operator fatigue and wear on mechanical components, while maintaining reliable actuation in industrial environments. It is designed for momentary operation and can be configured for standard normally open or normally closed relay behavior via its SPDT output, supporting applications in machinery controls, conveyors, and automated systems where a compact, rugged, non-contact button is advantageous. The OTBVR81LQD variant uses a Quick Disconnect (QD) interface, simplifying field installation in space-constrained panels and enabling easy replacement of older push-button switches without sacrificing tactile feedback or performance.