Allen-Bradley 800MR-A9 Push Button

Allen-Bradley 800MR-A9 is a yellow, non-illuminated flush-head momentary push-button unit from Rockwell Automation's 800MR family. This variant comes as a push-button operator with no internal electrical contacts included; to achieve switching functionality, a separate contact cartridge must be installed. The flush-head design enables a low-profile panel mount ideal for compact control enclosures in rugged industrial environments, and the device operates as a momentary input that returns to its resting position when released. As part of the 800MR line, the A9 configuration specifies yellow color and non-illuminated, non-contact construction within this series. The flush, low-profile form minimizes protrusion for space-constrained panels, while the momentary action provides a single-action signal for general control inputs in industrial machinery when used with an appropriate contact cartridge. Installation typically requires mounting in a compatible panel cutout and pairing with a matching contact cartridge and termination hardware in the 800MR ecosystem. The A9 variant is specifically yellow and non-illuminated, with flush-head geometry designed for rugged, space-constrained panels.