{"id":2719,"date":"2020-12-28T19:57:28","date_gmt":"2020-12-28T16:57:28","guid":{"rendered":"https:\/\/ista.ua\/?p=2719"},"modified":"2026-05-26T19:21:10","modified_gmt":"2026-05-26T16:21:10","slug":"wm221-4-addressable-io-device","status":"publish","type":"post","link":"https:\/\/ista.ua\/en\/fire-alarm\/w\/multi-channel-io-devices-wm\/wm221-4-addressable-io-device\/","title":{"rendered":"W\u041c221-4 Addressable Input-Output Device"},"content":{"rendered":"<p>The WM221-4 Addressable Input-Output Device has 2 inputs, 1 monitored relay output 5\u0410 at AC\/DC30V, 5A fuse, supplied with a built-in short circuit isolator. The device provides external power DC12\/24V, AC24V monitoring.<\/p>\n<p>Available in options:<\/p>\n<ul>\n<li>WM221-4 - as a printed board to fit in a housing<\/li>\n<li>WM221-4B - in wall-mount housing<\/li>\n<li>WM221-4D - in 35 mm DIN rail mount housing<\/li>\n<\/ul>\n","protected":false},"excerpt":{"rendered":"<p>The WM221-4 Addressable Input-Output Device has 2 inputs, 1 monitored relay output 5\u0410 at AC\/DC30V, 5A fuse, supplied with a built-in short circuit isolator. The device provides external power DC12\/24V, AC24V monitoring....<\/p>\n","protected":false},"author":12,"featured_media":6109,"comment_status":"open","ping_status":"open","sticky":false,"template":"single-product.php","format":"standard","meta":[],"categories":[60],"tags":[],"yoast_head":"<!-- This site is optimized with the Yoast SEO plugin v15.5 - https:\/\/yoast.com\/wordpress\/plugins\/seo\/ -->\n<title>W\u041c221-4 Addressable Input-Output Device - ista.ua<\/title>\n<meta name=\"description\" content=\"WM221-4 addressable I\/O device with 2 inputs, 1 relay output 5\u0410 30V AC\/DC, 5A fuse, a built-in SCI, external power 24V AC\/DC monitoring.\" \/>\n<meta name=\"robots\" content=\"index, follow, max-snippet:-1, max-image-preview:large, max-video-preview:-1\" \/>\n<link rel=\"canonical\" href=\"https:\/\/ista.ua\/en\/fire-alarm\/w\/multi-channel-io-devices-wm\/wm221-4-addressable-io-device\/\" \/>\n<meta property=\"og:locale\" content=\"en_US\" \/>\n<meta property=\"og:type\" content=\"article\" \/>\n<meta property=\"og:title\" content=\"W\u041c221-4 Addressable Input-Output Device - 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