{"product_id":"george-risk-industries-inc-pb-2020-b-recessed-plunger-contact","title":"George Risk Industries Inc. PB-2020-B Recessed Plunger Contact","description":"\u003ch3\u003eProduct Description\u003c\/h3\u003e\n\u003cp\u003eThe GEORGE RISK INDUSTRIES INC. PB-2020-B is a recessed plunger-style magnetic contact designed for closed-loop security and detection circuits. The unit features a 3\/8-inch recessed form factor, allowing it to be mounted flush within a door frame, window frame, or similar surface. When the door or window opens, the plunger releases and breaks the closed circuit, triggering the connected alarm or control panel. Installation is typically performed by security technicians or electricians working on low-voltage detection systems.\u003c\/p\u003e\n\u003cp\u003eThe PB-2020-B is suited for residential and light commercial access-point monitoring where a discrete, recessed installation is required. The closed-loop wiring configuration integrates with standard hardwired security panels and alarm control systems. Its compact 3\/8-inch body fits into tight frame cavities where surface-mount contacts are not practical, making it a common choice for new construction and retrofit door or window sensor installations.\u003c\/p\u003e\n\u003ch4\u003eKey Features\u003c\/h4\u003e\n\u003cul\u003e\n  \u003cli\u003eRecessed plunger design for flush, low-profile installation in door and window frames\u003c\/li\u003e\n  \u003cli\u003eClosed-loop circuit configuration compatible with standard hardwired alarm panels\u003c\/li\u003e\n  \u003cli\u003e3\/8-inch body diameter fits tight frame cavities\u003c\/li\u003e\n  \u003cli\u003eSold individually as a single unit\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch4\u003eCompatibility\u003c\/h4\u003e\n\u003cp\u003eDesigned as an OEM-style recessed plunger contact for use in hardwired closed-loop security and detection circuits typical of residential and light commercial alarm systems.\u003c\/p\u003e\n\u003ch4\u003eInstallation Notes\u003c\/h4\u003e\n\u003cp\u003eInstallation should be performed by a qualified low-voltage technician or licensed electrician in accordance with applicable NEC low-voltage wiring guidelines. Power down or disable the alarm panel before wiring the contact into the detection loop. Drill the mounting hole to the appropriate diameter to accept the 3\/8-inch recessed body, and ensure the plunger actuates fully when the door or window closes. Verify circuit continuity with a multimeter before restoring panel power.\u003c\/p\u003e\n\u003ch4\u003eTechnical Specifications\u003c\/h4\u003e\n\u003cul\u003e\n  \u003cli\u003e\n\u003cstrong\u003eCircuit Type\u003c\/strong\u003e: Closed Loop\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eBody Diameter\u003c\/strong\u003e: 3\/8 inches\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eMount Style\u003c\/strong\u003e: Recessed Plunger\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\n\u003ch4\u003eStandard Information\u003c\/h4\u003e\n\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: PB-2020-B\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"GEORGE RISK INDUSTRIES INC.","offers":[{"title":"Default Title","offer_id":51712116162866,"sku":"PB-2020-B","price":18.88,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0270\/4519\/9983\/files\/79616b830e08ab4e2141d306b9a816dc_b0409822-d822-4f92-aef6-59d583d29931.jpg?v=1788484084","url":"https:\/\/voomisupply.com\/products\/george-risk-industries-inc-pb-2020-b-recessed-plunger-contact","provider":"Voomi Supply","version":"1.0","type":"link"}