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The KILLARK XO3BR is a standard pushbutton assembly from the X Series, designed for use in industrial control station applications. It features a red mushroom-shaped actuator with a half shroud configuration and measures 1.375 inches in diameter. The half shroud provides partial protection against accidental actuation while keeping the mushroom head accessible for intentional operator use. This assembly is sold as a single unit and is manufactured in the United States. Electricians and industrial maintenance technicians working on control station panels and enclosures are the primary installers of this component.
This pushbutton assembly is suited for industrial and commercial control station installations where a clearly visible, color-coded operator interface is required. The red coloring is a standard industry convention for stop, emergency, or alert functions, making the XO3BR appropriate for machine control panels, process equipment stations, and similar operator interface applications. Its compact footprint suits standard control enclosures and panel cutouts used in light manufacturing, utilities, and infrastructure environments.
Designed as an OEM-style replacement or new-installation component for industrial control stations accepting a standard 1.375 inch diameter pushbutton assembly with half shroud configuration.
Installation should be performed by a qualified electrician in accordance with applicable NEC requirements and local codes. De-energize the control panel and verify zero voltage before removing or installing any pushbutton assembly. Confirm the panel cutout and mounting thread specifications match the XO3BR before installation. Do not force-fit the actuator into an incompatible cutout, as this may damage the assembly or the enclosure.
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