{"product_id":"von-duprin-ps904-4r-fa","title":"Von Duprin PS904-4R-FA","description":"\u003ch2 data-section-id=\"1u0zn5s\" data-start=\"0\" data-end=\"29\"\u003eSchlage PS904 Power Supply\u003c\/h2\u003e\n\u003cp data-start=\"31\" data-end=\"460\"\u003eThe Schlage PS904 Power Supply is a versatile and reliable 4 amp power solution designed to support the evolving needs of modern electronic access control systems. Engineered for flexibility, the PS904 can be factory configured or expanded in the field using a wide range of plug-in option boards, making it ideal for electric strikes, mag locks, card readers, delayed egress systems, and other electrified hardware applications.\u003c\/p\u003e\n\u003cp data-start=\"462\" data-end=\"814\"\u003eBuilt with separate battery management technology, the PS904 delivers clean and consistent regulated power to protect sensitive downstream devices while maintaining dependable performance during continuous operation. Its flat mounting board, polarized locking connectors, and accessible terminal blocks simplify installation and future system upgrades.\u003c\/p\u003e\n\u003cp data-start=\"816\" data-end=\"969\"\u003ePerfect for commercial buildings, schools, healthcare facilities, offices, and security applications requiring dependable low-voltage power distribution.\u003c\/p\u003e\n\u003ch3 data-section-id=\"1iz91iu\" data-start=\"971\" data-end=\"987\"\u003eKey Features\u003c\/h3\u003e\n\u003cul data-start=\"988\" data-end=\"1578\"\u003e\n\u003cli data-section-id=\"6yr6xe\" data-start=\"988\" data-end=\"1047\"\u003e4 amp Class 2 filtered and regulated power-limited output\u003c\/li\u003e\n\u003cli data-section-id=\"pflhgx\" data-start=\"1048\" data-end=\"1105\"\u003eField selectable 12 or 24 VDC output via plug-in jumper\u003c\/li\u003e\n\u003cli data-section-id=\"zoz6zj\" data-start=\"1106\" data-end=\"1149\"\u003eUniversal 120–240 VAC input compatibility\u003c\/li\u003e\n\u003cli data-section-id=\"cdjv9v\" data-start=\"1150\" data-end=\"1209\"\u003eSeparate battery management for stable voltage regulation\u003c\/li\u003e\n\u003cli data-section-id=\"136dbhk\" data-start=\"1210\" data-end=\"1265\"\u003eBattery backup capability for uninterrupted operation\u003c\/li\u003e\n\u003cli data-section-id=\"wx4ohx\" data-start=\"1266\" data-end=\"1326\"\u003eOverload protection with current-limited fold-back circuit\u003c\/li\u003e\n\u003cli data-section-id=\"10275y6\" data-start=\"1327\" data-end=\"1369\"\u003ePlug-and-play option board compatibility\u003c\/li\u003e\n\u003cli data-section-id=\"1h992nn\" data-start=\"1370\" data-end=\"1431\"\u003eLED status indicators for AC input and DC output monitoring\u003c\/li\u003e\n\u003cli data-section-id=\"1cigxz\" data-start=\"1432\" data-end=\"1488\"\u003eHinged lockable enclosure with optional key lock cover\u003c\/li\u003e\n\u003cli data-section-id=\"1my81jk\" data-start=\"1489\" data-end=\"1578\"\u003eSupports electric strikes, magnetic locks, card readers, and access control accessories\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3 data-section-id=\"onsili\" data-start=\"1580\" data-end=\"1596\"\u003ePower Output\u003c\/h3\u003e\n\u003cul data-start=\"1597\" data-end=\"1809\"\u003e\n\u003cli data-section-id=\"1joyqoy\" data-start=\"1597\" data-end=\"1621\"\u003e4 amp regulated output\u003c\/li\u003e\n\u003cli data-section-id=\"14v34wx\" data-start=\"1622\" data-end=\"1653\"\u003e12 or 24 VDC field selectable\u003c\/li\u003e\n\u003cli data-section-id=\"814g0g\" data-start=\"1654\" data-end=\"1697\"\u003eSwitching power supply with 5% regulation\u003c\/li\u003e\n\u003cli data-section-id=\"wcznwy\" data-start=\"1698\" data-end=\"1721\"\u003e240Vpp maximum ripple\u003c\/li\u003e\n\u003cli data-section-id=\"unqdvt\" data-start=\"1722\" data-end=\"1761\"\u003eOverload and short circuit protection\u003c\/li\u003e\n\u003cli data-section-id=\"1bht4hh\" data-start=\"1762\" data-end=\"1809\"\u003eContinuous power with optional battery backup\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3 data-section-id=\"1yj67ni\" data-start=\"1811\" data-end=\"1835\"\u003eInput Specifications\u003c\/h3\u003e\n\u003cul data-start=\"1836\" data-end=\"2026\"\u003e\n\u003cli data-section-id=\"jbigst\" data-start=\"1836\" data-end=\"1865\"\u003eUniversal 120\/240 VAC input\u003c\/li\u003e\n\u003cli data-section-id=\"1fewd7n\" data-start=\"1866\" data-end=\"1886\"\u003e50\/60 Hz operation\u003c\/li\u003e\n\u003cli data-section-id=\"1ec89cg\" data-start=\"1887\" data-end=\"1919\"\u003eFused primary input protection\u003c\/li\u003e\n\u003cli data-section-id=\"p4bvmn\" data-start=\"1920\" data-end=\"1969\"\u003eAC input monitoring with isolated SPDT contacts\u003c\/li\u003e\n\u003cli data-section-id=\"102zspl\" data-start=\"1970\" data-end=\"2026\"\u003eAutomatic voltage selection for battery backup systems\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3 data-section-id=\"y8yqui\" data-start=\"2028\" data-end=\"2056\"\u003eCompatible Option Boards\u003c\/h3\u003e\n\u003cul data-start=\"2057\" data-end=\"2484\"\u003e\n\u003cli data-section-id=\"1sgm00l\" data-start=\"2057\" data-end=\"2099\"\u003e\n\u003cstrong data-start=\"2059\" data-end=\"2069\"\u003e900-BB\u003c\/strong\u003e – Battery backup option board\u003c\/li\u003e\n\u003cli data-section-id=\"1k0q8wa\" data-start=\"2100\" data-end=\"2157\"\u003e\n\u003cstrong data-start=\"2102\" data-end=\"2113\"\u003e900-BBK\u003c\/strong\u003e – Battery backup kit with two 7Ah batteries\u003c\/li\u003e\n\u003cli data-section-id=\"ceu4et\" data-start=\"2158\" data-end=\"2210\"\u003e\n\u003cstrong data-start=\"2160\" data-end=\"2170\"\u003e900-FA\u003c\/strong\u003e – Emergency fire alarm interface module\u003c\/li\u003e\n\u003cli data-section-id=\"u9dmrd\" data-start=\"2211\" data-end=\"2259\"\u003e\n\u003cstrong data-start=\"2213\" data-end=\"2224\"\u003e900-2RS\u003c\/strong\u003e – 2 relay sequential control board\u003c\/li\u003e\n\u003cli data-section-id=\"1el4g9x\" data-start=\"2260\" data-end=\"2308\"\u003e\n\u003cstrong data-start=\"2262\" data-end=\"2272\"\u003e900-4R\u003c\/strong\u003e – 4 relay independent control board\u003c\/li\u003e\n\u003cli data-section-id=\"1riedyt\" data-start=\"2309\" data-end=\"2357\"\u003e\n\u003cstrong data-start=\"2311\" data-end=\"2322\"\u003e900-4RL\u003c\/strong\u003e – 4 relay programmable logic board\u003c\/li\u003e\n\u003cli data-section-id=\"1ait4pj\" data-start=\"2358\" data-end=\"2406\"\u003e\n\u003cstrong data-start=\"2360\" data-end=\"2370\"\u003e900-8F\u003c\/strong\u003e – 8 fused output distribution board\u003c\/li\u003e\n\u003cli data-section-id=\"1er59kn\" data-start=\"2407\" data-end=\"2450\"\u003e\n\u003cstrong data-start=\"2409\" data-end=\"2419\"\u003e900-8P\u003c\/strong\u003e – 8 PTC protected output board\u003c\/li\u003e\n\u003cli data-section-id=\"14z4atr\" data-start=\"2451\" data-end=\"2484\"\u003e\n\u003cstrong data-start=\"2453\" data-end=\"2463\"\u003e900-KL\u003c\/strong\u003e – Key lock cover kit\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3 data-section-id=\"1x686dc\" data-start=\"2486\" data-end=\"2528\"\u003eCabinet \u0026amp; Environmental Specifications\u003c\/h3\u003e\n\u003cul data-start=\"2529\" data-end=\"2761\"\u003e\n\u003cli data-section-id=\"14ivfu4\" data-start=\"2529\" data-end=\"2571\"\u003eCabinet dimensions: 14\" H x 12\" W x 4\" D\u003c\/li\u003e\n\u003cli data-section-id=\"11u7bbp\" data-start=\"2572\" data-end=\"2598\"\u003eGrey baked enamel finish\u003c\/li\u003e\n\u003cli data-section-id=\"1mi6vv8\" data-start=\"2599\" data-end=\"2634\"\u003eHinged cover with lockdown screws\u003c\/li\u003e\n\u003cli data-section-id=\"10buis1\" data-start=\"2635\" data-end=\"2659\"\u003eNEMA Grade 1 enclosure\u003c\/li\u003e\n\u003cli data-section-id=\"j16gx9\" data-start=\"2660\" data-end=\"2712\"\u003eOperating temperature: 32°F to 120°F (0°C to 49°C)\u003c\/li\u003e\n\u003cli data-section-id=\"1n8h5pp\" data-start=\"2713\" data-end=\"2761\"\u003eWeight: 9 lbs. (additional 4 lbs. per battery)\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3 data-section-id=\"1wnq3ka\" data-start=\"2763\" data-end=\"2785\"\u003eIdeal Applications\u003c\/h3\u003e\n\u003cul data-start=\"2786\" data-end=\"2932\"\u003e\n\u003cli data-section-id=\"1h3gb7h\" data-start=\"2786\" data-end=\"2810\"\u003eAccess control systems\u003c\/li\u003e\n\u003cli data-section-id=\"1vv3my\" data-start=\"2811\" data-end=\"2829\"\u003eElectric strikes\u003c\/li\u003e\n\u003cli data-section-id=\"1ifcwsu\" data-start=\"2830\" data-end=\"2846\"\u003eMagnetic locks\u003c\/li\u003e\n\u003cli data-section-id=\"3aoo1u\" data-start=\"2847\" data-end=\"2871\"\u003eDelayed egress devices\u003c\/li\u003e\n\u003cli data-section-id=\"1qkzmtq\" data-start=\"2872\" data-end=\"2902\"\u003eCard readers and controllers\u003c\/li\u003e\n\u003cli data-section-id=\"1ssvml0\" data-start=\"2903\" data-end=\"2932\"\u003eCommercial security systems\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"Von Duprin","offers":[{"title":"Default Title","offer_id":50849533231425,"sku":"PS904-4R-FA","price":730.8,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0686\/0043\/0913\/files\/thumb_VON_PS904-4R.jpg?v=1758844965","url":"https:\/\/www.barzellock.com\/products\/von-duprin-ps904-4r-fa","provider":"Barzel Lock","version":"1.0","type":"link"}