{"product_id":"sdc-mc-4mu-magnetic-switch-spdt-satin-stainless","title":"Sdc MC-4MU Magnetic Switch Spdt Satin Stainless","description":"\u003ch3\u003eProduct Description\u003c\/h3\u003e\n\u003cp\u003eThe SDC - SECURITY DOOR CONTROLS MC-4MU is a single-pole double-throw (SPDT) magnetic switch designed for door position monitoring in access control and security applications. Measuring 1.25 inches by 4.875 inches, this switch detects door open and closed states and sends a signal to the access control panel or alarm system. The 630 finish designates a satin stainless steel surface treatment, making the unit suitable for both interior and exterior door hardware installations. Licensed security and low-voltage technicians are the primary installers of this device.\u003c\/p\u003e\n\u003cp\u003eThe MC-4MU is used in commercial and institutional access control systems where reliable door position sensing is required. It is appropriate for use on doors monitored by access control panels, burglar alarm systems, or building automation systems that require a dry-contact status signal. The SPDT configuration provides both normally open and normally closed circuit options, giving installers flexibility in how the switch integrates with the control system. Typical installations include hollow metal doors, aluminum storefront doors, and similar commercial door frames.\u003c\/p\u003e\n\u003ch4\u003eKey Features\u003c\/h4\u003e\n\u003cul\u003e\n  \u003cli\u003eSPDT contact configuration supports both normally open and normally closed wiring options\u003c\/li\u003e\n  \u003cli\u003e1.25 x 4.875 inch form factor sized for standard commercial door frame mortise or surface mount applications\u003c\/li\u003e\n  \u003cli\u003e630 satin stainless finish resists corrosion and blends with commercial door hardware\u003c\/li\u003e\n  \u003cli\u003eSold as a single unit for individual door installations\u003c\/li\u003e\n  \u003cli\u003eCompatible with standard low-voltage access control and alarm panel inputs\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch4\u003eCompatibility\u003c\/h4\u003e\n\u003cp\u003eDesigned as an OEM-style replacement or new-installation magnetic switch for commercial access control and security alarm systems requiring an SPDT dry-contact door position sensor.\u003c\/p\u003e\n\u003ch4\u003eInstallation Notes\u003c\/h4\u003e\n\u003cp\u003eInstallation should be performed by a licensed low-voltage or alarm technician in accordance with applicable local codes and NFPA 731 standards. De-energize the access control panel circuit before wiring the switch contacts. Verify the door gap clearance is appropriate for the magnetic switch actuation range before finalizing mounting position. Do not exceed the switch rated voltage or current limits as specified in the manufacturer data sheet.\u003c\/p\u003e\n\u003ch4\u003eTechnical Specifications\u003c\/h4\u003e\n\u003cul\u003e\n  \u003cli\u003e\n\u003cstrong\u003eContact Configuration\u003c\/strong\u003e: SPDT (Single-Pole Double-Throw)\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eLength\u003c\/strong\u003e: 4.875 inches\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eWidth\u003c\/strong\u003e: 1.25 inches\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eFinish\u003c\/strong\u003e: 630 Satin Stainless\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: SDC - SECURITY DOOR CONTROLS\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eManufacturer Part Number\u003c\/strong\u003e: MC-4MU\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"SDC","offers":[{"title":"Default Title","offer_id":51686909870386,"sku":"MC-4MU","price":172.34,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0270\/4519\/9983\/files\/0f60acb0c787b34971242e370cab6cdd.jpg?v=1788229770","url":"https:\/\/voomisupply.com\/products\/sdc-mc-4mu-magnetic-switch-spdt-satin-stainless","provider":"Voomi Supply","version":"1.0","type":"link"}