Signaling Devices 30 Overview Standard Features The 5520D Series Horn/Siren Combination is an extremely high decibel, high-performance signalling appliance intended for fire alarm and life safety applications. They are perfect for indoor or outdoor applications including schools, factories, lumber yards and even boats. They can be used where standard bells or horns are not satisfactory, particularly in areas of high noise level. The unit will function as a Horn or Siren with just the flick of a switch. • 24Vdc • Solid-state • Extremely high dB • Suitable for coded signals • Swivel/adjustable mounting • Outdoor/weatherproof option The universal mounting plate will install directly over any standard North-American 1-gang opening, standard octagon box, or 4 inch square electrical box. The megaphone may be swivelled through 180° horizontally and 90° vertically. All wiring is made to colour-coded wire leads attached to a quick-disconnect plug. When complete the device just plugs-in and is locked to the mounting plate with a set screw. Installation and Mounting Once mounted, the horn/siren switch is tamperproof. The horn is suitable for “coded” applications; the siren is not. The complete unit is finished with a metallic gray enamel. 11" (279mm) 90° 5-1/2" (140mm) Ordering Information Description Horn/Siren Combination Colour-coded wire leads with 5520D-AW Quick-Disconnect Plug Metallic gray enamel ULC-S525 Accessories 349 Weatherproof Backbox Typical Wiring (-) red To listed control panel or previous signal (+) black 11" (279mm) 14" (356mm) Megaphone can be positioned anywhere within 90°vertically or 180° horizontal swing. Sound Characteristics Nominal Operating Voltage Current Draw Ship Wt. kg. Horn — 114 dBA at 10’-0" (3m). Horn characteristic is predominantly 1.1 KHz (Suitable for coded signals) Siren — 112 dBA at 10’-0" (3m). Siren characteristic rises and falls 300 to 3000 Hz every 3 seconds. (not suitable for coded signals) 24Vdc 350 mA 11.5 ------ ------ ------ 0.3 (-) red To next device or end of line resistor green (ground wire) black Horn/Siren Combination 5520D Series 13-1/2" (343mm) To Point of Pivot 7" (178mm) Cat. No. 8-3/4" Dia. (222mm) (+) NOTE: DC supervisory polarity shown. On alarm, polarity reverses. Refer to control panel for NAC circuit current ratings.