{"product_id":"sdc-cr4-4-station-relay-module-12-24-vdc","title":"Sdc CR4 4-station Relay Module 12\/24 Vdc","description":"\u003ch3\u003eProduct Description\u003c\/h3\u003e\n\u003cp\u003eThe SDC - SECURITY DOOR CONTROLS CR4 is a four-station relay module designed for access control and locking applications operating at 12 or 24 volts DC. It provides independent relay outputs for up to four separate door or access control stations, allowing installers to switch lock power, release signals, or auxiliary devices from a single centralized module. The dual-voltage compatibility at 12\/24 VDC makes it adaptable to a wide range of access control panel configurations without requiring additional voltage conversion hardware. Security integrators and access control technicians are the primary trade professionals who specify and install this module.\u003c\/p\u003e\n\u003cp\u003eThe CR4 is suited for commercial and light industrial access control installations where multiple door stations must be controlled from a common relay bank. Typical applications include electric strike control, magnetic lock release circuits, and auxiliary output switching in multi-door access panels. Its four-station layout consolidates relay switching in panel enclosures where space and wiring organization are priorities.\u003c\/p\u003e\n\u003ch4\u003eKey Features\u003c\/h4\u003e\n\u003cul\u003e\n  \u003cli\u003eFour independent relay stations for multi-door access control switching\u003c\/li\u003e\n  \u003cli\u003eDual-voltage operation at 12 VDC or 24 VDC without modification\u003c\/li\u003e\n  \u003cli\u003eCentralized relay bank simplifies wiring in multi-door panel installations\u003c\/li\u003e\n  \u003cli\u003eCompatible with electric strikes, magnetic locks, and auxiliary switching loads\u003c\/li\u003e\n  \u003cli\u003eSold as a single unit (each)\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch4\u003eCompatibility\u003c\/h4\u003e\n\u003cp\u003eDesigned as an OEM-style relay expansion module for use with access control systems and locking hardware panels requiring multi-station relay output switching at 12 or 24 volts DC.\u003c\/p\u003e\n\u003ch4\u003eInstallation Notes\u003c\/h4\u003e\n\u003cp\u003eInstallation should be performed by a licensed security or low-voltage electrician familiar with access control panel wiring practices. De-energize all panel power before connecting or disconnecting relay module wiring. Follow applicable local low-voltage and electrical codes, including NEC Article 725, when wiring control circuits to this module. Verify system operating voltage matches the module input before applying power.\u003c\/p\u003e\n\u003ch4\u003eTechnical Specifications\u003c\/h4\u003e\n\u003cul\u003e\n  \u003cli\u003e\n\u003cstrong\u003eNumber of Stations\u003c\/strong\u003e: 4\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eOperating Voltage\u003c\/strong\u003e: 12\/24 VDC\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 Unit\u003c\/strong\u003e: 1\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eCategory\u003c\/strong\u003e: Lock Accessories\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: CR4\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"SDC","offers":[{"title":"Default Title","offer_id":51688191623474,"sku":"CR4","price":300.25,"currency_code":"USD","in_stock":true}],"url":"https:\/\/voomisupply.com\/products\/sdc-cr4-4-station-relay-module-12-24-vdc","provider":"Voomi Supply","version":"1.0","type":"link"}