{"product_id":"haydon-en54-4-27-6v-dc-2a-fire-alarm-power-supply-with-battery-backup-hay-psuen54-2a","title":"Haydon EN54-4 27.6V DC 2A Fire Alarm Power Supply with Battery Backup HAY-PSUEN54-2A","description":"\u003cp\u003e\u003cstrong\u003eOverview\u003c\/strong\u003e\u003cbr\u003eThe HAY-PSUEN54-2A is an EN54-4 compliant 27.6 V DC uninterruptible power supply with integrated battery backup for fire detection and alarm systems. It provides automatic switchover to battery on mains loss and includes battery monitoring, deep-discharge protection and electronic overload protection. Supplied in a lockable, tamper-protected steel enclosure.\u003c\/p\u003e\n\u003cul\u003e\n  \u003cli\u003eEN54-4 compliant 27.6 V DC uninterruptible output\u003c\/li\u003e\n  \u003cli\u003eRated continuous output current: 2 A\u003c\/li\u003e\n  \u003cli\u003eWide mains input: approx. 110–240 VAC, 47–63 Hz\u003c\/li\u003e\n  \u003cli\u003eIntegrated battery charger and support for internal standby batteries (typical: 2 × 7 Ah SLA on 2 A model)\u003c\/li\u003e\n  \u003cli\u003eMains \/ battery \/ fault LEDs and a volt-free mains-fail relay for remote fault signalling\u003c\/li\u003e\n  \u003cli\u003eTamper\/lid-open detection and lockable hinged steel enclosure\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e\u003cstrong\u003eUse cases\u003c\/strong\u003e\u003cbr\u003eDesigned for use with fire detection and alarm systems where EN54-4 compliance is required. Suitable for both contractor installation and system upgrades in commercial and residential buildings.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eCompliance \u0026amp; safety\u003c\/strong\u003e\u003cbr\u003eEN54-4 compliant — refer to the official datasheet for full certification, CE\/UKCA markings and detailed test information. Installation must be performed by a competent person in accordance with manufacturer instructions and relevant UK standards (eg. BS 5839). Always isolate mains before installation and follow the supplied wiring diagrams.\u003c\/p\u003e\n\u003cp\u003eFor full electrical tables, fuse ratings, exact enclosure dimensions and wiring diagrams, consult the product datasheet \/ installation manual supplied by the manufacturer.\u003c\/p\u003e","brand":"Haydon","offers":[{"title":"-","offer_id":56595095552373,"sku":"HAY-PSUEN54-2A","price":162.02,"currency_code":"GBP","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0050\/1216\/0612\/files\/ITM005945_1.png?v=1768256932","url":"https:\/\/wmestore.co.uk\/products\/haydon-en54-4-27-6v-dc-2a-fire-alarm-power-supply-with-battery-backup-hay-psuen54-2a","provider":"WME","version":"1.0","type":"link"}