{"product_id":"george-risk-industries-inc-rb-01-b-rollerball-contact","title":"George Risk Industries Inc. RB-01-B Rollerball Contact","description":"\u003ch3\u003eProduct Description\u003c\/h3\u003e\u003cp\u003eThe 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.\u003c\/p\u003e\u003cp\u003eThe 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.\u003c\/p\u003e\u003ch4\u003eKey Features\u003c\/h4\u003e\u003cul\u003e\n\u003cli\u003eRollerball actuator design allows actuation from mechanical movement or surface contact pressure\u003c\/li\u003e\n\u003cli\u003e3\/4 inch form factor fits compact mounting locations in door frames, window sashes, and enclosures\u003c\/li\u003e\n\u003cli\u003eBrown housing finish for low-visibility installation on light-colored surfaces\u003c\/li\u003e\n\u003cli\u003eClassified under special application contacts for non-standard switching scenarios\u003c\/li\u003e\n\u003cli\u003eSingle unit packaging for individual replacement or new installation\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch4\u003eCompatibility\u003c\/h4\u003e\u003cp\u003eDesigned 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.\u003c\/p\u003e\u003ch4\u003eInstallation Notes\u003c\/h4\u003e\u003cp\u003eInstallation 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.\u003c\/p\u003e\u003ch4\u003eTechnical Specifications\u003c\/h4\u003e\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eActuator Type\u003c\/strong\u003e: Rollerball\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eHousing Size\u003c\/strong\u003e: 3\/4 inch\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eHousing Color\u003c\/strong\u003e: Brown\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eCategory\u003c\/strong\u003e: Special Application Contacts\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eUnit of Measure\u003c\/strong\u003e: Each\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eQuantity Per Package\u003c\/strong\u003e: 1\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch4\u003eStandard Information\u003c\/h4\u003e\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eBrand\u003c\/strong\u003e: GEORGE RISK INDUSTRIES INC.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eManufacturer Part Number\u003c\/strong\u003e: RB-01-B\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"GEORGE RISK INDUSTRIES INC.","offers":[{"title":"Default Title","offer_id":51687187022130,"sku":"RB-01-B","price":24.89,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0270\/4519\/9983\/files\/fbf4101f803261d6505f367d2ca9a067.jpg?v=1788231981","url":"https:\/\/voomisupply.com\/products\/george-risk-industries-inc-rb-01-b-rollerball-contact","provider":"Voomi Supply","version":"1.0","type":"link"}