{"product_id":"sd500-ps-silent-knight-single-action-addressable-pull-station-24vdc","title":"SD500-PS | Silent Knight Single-Action Addressable Pull Station 24VDC","description":"\u003ch4\u003eDescription \u003c\/h4\u003e\n\u003cp data-start=\"144\" data-end=\"396\"\u003eThe Silent Knight SD500-PS is a single-action addressable pull station designed for use with Silent Knight IntelliKnight fire alarm control panels. It operates at 24VDC and provides fast, reliable manual fire alarm activation, featuring gold-plated contacts for corrosion resistance and a key-operated reset for secure maintenance.\u003c\/p\u003e\n\u003cp data-start=\"284\" data-end=\"574\" class=\"\"\u003e \u003c\/p\u003e\n\u003cp data-start=\"284\" data-end=\"574\" class=\"\"\u003e \u003c\/p\u003e\n\u003ch4\u003eTechnical Specifications \u003c\/h4\u003e\n\u003ctable style=\"width: 99.964%; height: 471.4px;\"\u003e\n\u003ctbody\u003e\n\u003ctr style=\"height: 19.6px;\"\u003e\n\u003ctd style=\"width: 24.1999%; height: 19.6px;\"\u003e\u003cstrong\u003eCondition\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"width: 75.4854%; height: 19.6px;\"\u003eNew\/Never Used Surplus\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr style=\"height: 19.6px;\"\u003e\n\u003ctd style=\"width: 24.1999%; height: 19.6px;\"\u003e\u003cstrong\u003eBrand\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"width: 75.4854%; height: 19.6px;\"\u003eSilent Knight\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr style=\"height: 19.6px;\"\u003e\n\u003ctd style=\"width: 24.1999%; height: 19.6px;\"\u003e\u003cstrong\u003eCategory\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"width: 75.4854%; height: 19.6px;\"\u003eFire Alarm Equipment\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr style=\"height: 20.6px;\"\u003e\n\u003ctd style=\"width: 24.1999%; height: 20.6px;\"\u003e\u003cstrong\u003ePart Number\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"width: 75.4854%; height: 20.6px;\"\u003eSD500-PS\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr style=\"height: 19.6px;\"\u003e\n\u003ctd style=\"width: 24.1999%; height: 19.6px;\"\u003e\u003cstrong\u003eSubcategory\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"width: 75.4854%; height: 19.6px;\"\u003eAddressable Pull Station\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr style=\"height: 19.6px;\"\u003e\n\u003ctd style=\"width: 24.1999%; height: 19.6px;\"\u003e\u003cstrong\u003eType\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"width: 75.4854%; height: 19.6px;\"\u003eSingle-action manual station\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr style=\"height: 19.6px;\"\u003e\n\u003ctd style=\"width: 24.1999%; height: 19.6px;\"\u003e\u003cstrong\u003eSystem Compatibility\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"width: 75.4854%; height: 19.6px;\"\u003eSilent Knight IntelliKnight addressable FACPs\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr style=\"height: 19.6px;\"\u003e\n\u003ctd style=\"width: 24.1999%; height: 19.6px;\"\u003e\u003cstrong\u003eOperating Voltage\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"width: 75.4854%; height: 19.6px;\"\u003e24VDC nominal\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr style=\"height: 19.6px;\"\u003e\n\u003ctd style=\"width: 24.1999%; height: 19.6px;\"\u003e\u003cstrong\u003eStandby Current\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"width: 75.4854%; height: 19.6px;\"\u003e5mA typical\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr style=\"height: 19.6px;\"\u003e\n\u003ctd style=\"width: 24.1999%; height: 19.6px;\"\u003e\u003cstrong\u003eAlarm Current\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"width: 75.4854%; height: 19.6px;\"\u003e25mA typical\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr style=\"height: 19.6px;\"\u003e\n\u003ctd style=\"width: 24.1999%; height: 19.6px;\"\u003e\u003cstrong\u003eStatus Indicator\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"width: 75.4854%; height: 19.6px;\"\u003eBi-color LED (green for normal, red for alarm)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr style=\"height: 19.6px;\"\u003e\n\u003ctd style=\"width: 24.1999%; height: 19.6px;\"\u003e\u003cstrong\u003eReset Method\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"width: 75.4854%; height: 19.6px;\"\u003eKey-operated lock mechanism\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr style=\"height: 19.6px;\"\u003e\n\u003ctd style=\"width: 24.1999%; height: 19.6px;\"\u003e\u003cstrong\u003eContact Type\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"width: 75.4854%; height: 19.6px;\"\u003eGold-plated corrosion-resistant contacts\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr style=\"height: 19.6px;\"\u003e\n\u003ctd style=\"width: 24.1999%; height: 19.6px;\"\u003e\u003cstrong\u003eMounting Options\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"width: 75.4854%; height: 19.6px;\"\u003eSurface mount or flush mount\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr style=\"height: 19.6px;\"\u003e\n\u003ctd style=\"width: 24.1999%; height: 19.6px;\"\u003e\u003cstrong\u003eMounting Box Type\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"width: 75.4854%; height: 19.6px;\"\u003eSingle-gang electrical box\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr style=\"height: 19.6px;\"\u003e\n\u003ctd style=\"width: 24.1999%; height: 19.6px;\"\u003e\u003cstrong\u003eProgramming Method\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"width: 75.4854%; height: 19.6px;\"\u003eDIP switch addressing for fast configuration\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr style=\"height: 19.6px;\"\u003e\n\u003ctd style=\"width: 24.1999%; height: 19.6px;\"\u003e\u003cstrong\u003eColor\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"width: 75.4854%; height: 19.6px;\"\u003eRed\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr style=\"height: 19.6px;\"\u003e\n\u003ctd style=\"width: 24.1999%; height: 19.6px;\"\u003e\u003cstrong\u003eConstruction Material\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"width: 75.4854%; height: 19.6px;\"\u003eHigh-impact ABS plastic housing\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr style=\"height: 19.6px;\"\u003e\n\u003ctd style=\"width: 24.1999%; height: 19.6px;\"\u003e\u003cstrong\u003eDimensions\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"width: 75.4854%; height: 19.6px;\"\u003e4.5\" (H) × 5.5\" (W) × 2.0\" (D)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr style=\"height: 19.6px;\"\u003e\n\u003ctd style=\"width: 24.1999%; height: 19.6px;\"\u003e\u003cstrong\u003eOperating Temperature Range\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"width: 75.4854%; height: 19.6px;\"\u003e32°F to 120°F (0°C to 49°C)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr style=\"height: 19.6px;\"\u003e\n\u003ctd style=\"width: 24.1999%; height: 19.6px;\"\u003e\u003cstrong\u003eEnvironment\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"width: 75.4854%; height: 19.6px;\"\u003eIndoor, non-explosive locations\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr style=\"height: 19.6px;\"\u003e\n\u003ctd style=\"width: 24.1999%; height: 19.6px;\"\u003e\u003cstrong\u003eCompliance\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"width: 75.4854%; height: 19.6px;\"\u003eUL Listed, NFPA 72 compliant\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr style=\"height: 19.6px;\"\u003e\n\u003ctd style=\"width: 24.1999%; height: 19.6px;\"\u003e\u003cstrong\u003eCountry of Origin\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"width: 75.4854%; height: 19.6px;\"\u003eUSA (depending on batch)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr style=\"height: 19.6px;\"\u003e\n\u003ctd style=\"width: 24.1999%; height: 19.6px;\"\u003e\u003cstrong\u003eWeight\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"width: 75.4854%; height: 19.6px;\"\u003e2.00 lbs\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003ch4\u003e\u003cbr\u003e\u003c\/h4\u003e\n\u003ch4\u003eInformation About \u003cspan data-sheets-root=\"1\"\u003eSD500-PS\u003c\/span\u003e\n\u003c\/h4\u003e\n\u003cp\u003eThe SD500-PS pull station is part of Silent Knight’s addressable IntelliKnight fire alarm system series, offering dependable manual alarm initiation and simple installation. Designed for fast response, it allows building occupants to trigger a fire alarm with a single downward pull motion. The unit features gold-plated switch contacts to ensure long-term reliability and corrosion resistance, even in humid environments. DIP switch programming simplifies setup and addressing, while the integrated LED provides visual feedback for normal and alarm conditions. Its rugged red ABS housing supports both flush and surface mounting, making it adaptable for various fire protection system layouts.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eKey Features\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003eSingle-Action Activation: Provides quick and intuitive alarm initiation with a single downward pull.\u003c\/li\u003e\n\u003cli\u003eAddressable Communication: Designed for direct connection to Silent Knight IntelliKnight panels for precise point identification.\u003c\/li\u003e\n\u003cli\u003eKey-Operated Reset: Allows authorized personnel to easily reset the station after activation using a standard key lock.\u003c\/li\u003e\n\u003cli\u003eGold-Plated Contacts: Corrosion-resistant design ensures consistent electrical performance over time.\u003c\/li\u003e\n\u003cli\u003eDIP Switch Programming: Simplifies device addressing for faster installation and commissioning.\u003c\/li\u003e\n\u003cli\u003eVisual Status Indication: LED shows green for normal operation and red during an active alarm for immediate feedback.\u003c\/li\u003e\n\u003cli\u003eFlexible Mounting Options: Can be surface- or flush-mounted in a single-gang box for installation versatility.\u003c\/li\u003e\n\u003cli\u003eCertified Safety Compliance: UL Listed and NFPA 72 compliant for use in commercial and institutional fire alarm systems.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003eThe SD500-PS delivers the reliability and precision required for manual alarm initiation in addressable fire alarm systems, combining durability, serviceability, and user-friendly operation.\u003c\/p\u003e","brand":"Silent Knight","offers":[{"title":"Default Title","offer_id":49105149100288,"sku":"SD500-PS","price":642.39,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0388\/5331\/2557\/files\/SD500-PS.jpg?v=1785541334","url":"https:\/\/alotechparts.com\/products\/sd500-ps-silent-knight-single-action-addressable-pull-station-24vdc","provider":"Alo Tech Solutions","version":"1.0","type":"link"}