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  • OP921 Cerberus PRO Intelligent, Addressable Photoelectric Smoke . . .
    OP921 Cerberus PRO Intelligent, Addressable Photoelectric Smoke Detector, Data Sheet - Data Sheet for Product - OP921 A6V10343336_en pdf Product Family Cerberus PRO Product Group Fire - Detectors Peripherals Content Language English Content Type Technical Documentation > Data Sheet for Product Product Version Status Valid
  • Cerberus® PRO - Siemens
    Model OP921 is a plug-in, two-wire, addressable photoelectric smoke detector whose value is increased with built-in ISOtechnology feature Model OP921 is Underwriters’ Laboratories Listed [UL268A Listed for direct in-air duct usage]
  • OP921 Datasheet (PDF) - Siemens Semiconductor Group
    Part #: OP921 Download File Size: 477Kbytes Page: 4 Pages Description: UL 268 7th Edition Listed Manufacturer: Siemens Semiconductor Group
  • OP921 - Optical Smoke Detector - Industry Mall - Siemens WW
    Siemens Industry Catalog - Building Technologies - Fire safety (UL) - Detection and peripherals - Conventional Detection and Initiating Devices - Carbon Monoxide Detectors - OP921 - Optical Smoke Detector
  • Siemens OP921 (S54320-F4-A2) Photoelectric Smoke Detector - Fire Alarm
    The Photoelectric Smoke Detector (Model OP921) uses state-of-the-art microcontroller circuitry and surface-mount technology for maximum reliability Model OP921 incorporates an optical sensor using a light-scattering detection principle
  • Datasheet
    Model OP921 is a plug-in, two-wire, addressable photoelectric smoke detector whose value is increased with built-in ISOtechnology feature Model OP921 is Underwriters’ Laboratories Listed [UL268A Listed for direct in-air duct usage]
  • Installation Instructions Model OP921 - Siemens
    Follow detector spacing and location requirements in NFPA 72 Chapter for High Air Movement Areas and Control of Smoke Spread The Model OP921 contains an LED indicator capable of flashing either one of three distinct colors: green, yellow, or red The microprocessor-based detector monitors the following:
  • Model OP921 ARCHITECT AND ENGINEER SPECIFICATIONS - Braazi
    The Photoelectric Smoke Detector (Model OP921) uses state-of-the-art microcontroller circuitry and surface-mount technology for maximum reliability Model OP921 incorporates an optical sensor using a light-scattering detection principle
  • OP921 datasheet(1 4 Pages) SIEMENS | UL 268 7th Edition Listed
    Model OP921 is a wide-spectrum, photoelectric smoke detector that incorporates an infrared light-emitting diode (IRLED), as well as a light-sensing photodiode Under
  • 2) OP921 - Optical Smoke Detector - Siemens | PDF - Scribd
    Model OP921 is a plug-in, two-wire and addressable photoelectric smoke detector Model OP921 is Underwriters Laboratories Listed [ UL268A Listed for direct in-air duct usage] Each detector consists of a dust-resistant photoelectric chamber and microprocessor-based electronics with a low-profile plastic housing





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