George Risk Industries Inc. RB-01-B Rollerball Contact

Product Description

The GEORGE RISK INDUSTRIES INC. RB-01-B is a 3/4 inch rollerball contact designed for special application switching and detection tasks. This type of contact uses a rolling ball actuator to open or close a circuit when mechanical movement or pressure is applied to the sensor surface. It is commonly installed in security, access control, door and window sensing, and industrial switching circuits. The brown housing finish suits installations where the contact must blend with light-colored trim or frame surfaces. Electricians and low-voltage security technicians are the primary trades handling installation of this device.

The RB-01-B is suited for special application contact installations where a standard reed or plunger-style switch is not appropriate. Typical scenarios include recessed or surface-mounted positions on doors, windows, gates, or mechanical assemblies that require a rolling actuation point rather than a fixed linear trigger. The brown color variant is selected when the installation surface or surrounding trim is a matching or neutral tone, maintaining a clean finished appearance in residential and light commercial settings.

Key Features

• Rollerball actuator design allows actuation from mechanical movement or surface contact pressure
• 3/4 inch form factor fits compact mounting locations in door frames, window sashes, and enclosures
• Brown housing finish for low-visibility installation on light-colored surfaces
• Classified under special application contacts for non-standard switching scenarios
• Single unit packaging for individual replacement or new installation

Compatibility

Designed as an OEM-style special application rollerball contact for use in low-voltage security, access control, and industrial switching circuits where a 3/4 inch rolling actuator contact is specified.

Installation Notes

Installation is typically performed by licensed electricians or low-voltage security technicians following applicable NEC guidelines for the circuit type. Disconnect and de-energize the circuit completely before wiring or mounting the contact. Verify that the actuator ball moves freely and is properly aligned with the intended trigger surface before finalizing mounting. Do not force the rollerball actuator beyond its designed range of motion during installation.