These requirements cover electrically operated bells, sirens, horns, and similar audible signal devices, rated at 300 V or less, for fire-protective signalling service and intended for indoor and/or outdoor installation in accordance with CSA C22.1, Canadian Electrical Code, Part I, Safety Standard for Electrical Installations; and with CAN/ULC-S524, Installation of Fire Alarm Systems. Refer to CAN/ULC-S541, Speakers for Fire Alarm Systems, Including Accessories, for requirements pertaining to speakers. This standard also covers protective covers and accessories used with audible signals for fire alarm systems.
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ULC 525:2007
Original price was: $191.81.$95.00Current price is: $95.00.
Audible Signal Devices for Fire Alarm Systems, Including Accessories (CAN/ULC S525-07)
Underwriters Laboratories of Canada , 05/07/2007
