+90 212 222 87 80nokta@noktaelektronik.net
Nokta Elektronik
ProductsR&D & ProductionSoftwareBrandsAboutContactE-Catalogue
B2B LoginTechnical Service

Product Categories

  • Fire Solutions
  • Active Network Products
  • Passive Network Products
  • CCTV Solutions
  • Barrier and Parking Solutions
  • Alarm Solutions
  • Video Intercom
  • Test Equipment & Hand Tools
  • Rack Cabinets and Accessories
  • RF Communication Products
  • Industrial Communication Products
  • Audio and Video Products
  • Computer Units
  • Power Solutions
  • Electricity Solutions
  • E-Mobility
  • Lighting Solutions
  • Smart Home Products
  • Nurse Call Systems
  • Central Time Systems

Brands

  • upTech
  • Dahua
  • Oring Networking
  • Amphenol
  • Planet
  • Gewiss
  • ORing
  • Edge-Core
  • Goldtool
  • Noyafa
  • Ruijie Networks
  • Atc

Our Solutions

  • CCTV Solutions
  • Active Network Solutions
  • Passive Network Solutions
  • Medical Product Solutions
  • Fire Detection Systems
  • Barrier and Parking Systems
  • Software Solutions

Support

  • Technical Support Program
  • Blog & Guides
  • R&D & Production
  • Software
  • About Us
  • Contact
  • Legal Information
  • Cookie Policy

Contact Us

  • Our Addresses
  • Tel: 0212 222 87 80
  • Email: nokta@noktaelektronik.net
  • Nokta Elektronik ve Bilişim Sistemleri A.Ş.
    MERSİS: 0631-0730-5210-0020
    Tic. Sicil No: 555138-0

Newsletter

Subscribe to stay updated with our latest news.

© 2026 Nokta Elektronik ve Bilişim Sistemleri A.Ş.. All rights reserved.
  1. ›
  2. Fire Solutions
  3. ›
  4. Addressable
  5. ›
  6. Gas Release System
  7. ›
  8. Emergency Start/Stop Button
  9. Emergency Start/Stop Button
    Dahua

    Emergency Start/Stop Button

    Stock Code: HY-1221

    Starts or stops the extinguishing system by hand.
    A button unit for emergency response in a gas extinguishing system. The buttons under the protective cover start the release by hand or stop the countdown, and the unit talks to the control panel over a two-wire bus.
    DC 24 VOperating Voltage
    Two-wire busCommunication mode
    ≤ 1500 mCommunication distance
    1 – 254Coding range
    -10°C ~ +55°COperating Temperature
    0.67 kgWeight
    Key features
    Panel with protective coverThe specially structured protective cover on the metal panel prevents misoperation.
    Manual and automatic modesBrings the manual and automatic switch buttons onto one panel and sets the parameters for both states.
    Four red indicatorsThe automatic and manual indicators report the selected mode, while the start and stop indicators report the pressed button.
    Two-wire connectionThe polarity-free two-wire bus shortens the wiring and carries communication up to 1500 meters.
    Electronic codingThe installer gives the device any address between 1 and 254, and the panel recognizes the device by that address.
    Low current drawStatic current stays under 400 µA and activation current under 500 µA.
    Technical Specification
    Operating VoltageDC 24V
    Operating CurrentStatic Current: ≤ 400 µA
    Activation Current: ≤ 500 µA
    Indicator LightsAutomatic: Red (constantly on in automatic mode, constantly off in manual mode)
    Manual: Red (constantly on in manual mode, constantly off in automatic mode)
    Start: Red (normally off, turns on when the start button is pressed)
    Stop: Red (normally off, turns on when the stop button is pressed)
    Coding RangeElectronically encoded, any setting between 1 and 254
    Communication Distance≤ 1500 m (4921.26 ft)
    Communication ModeTwo-wire bus
    Operating Temperature–10°C ~ +55°C (+14°F ~ +131°F)
    Storage Temperature–20°C ~ +65°C (–4°F ~ +149°F)
    Operating Humidity≤ 95% RH (no condensation)
    DimensionsL × W × H: 127.0 mm × 149.0 mm × 40.0 mm (5.0" × 5.9" × 1.6")
    Weight0.67 kg (1.48 lb)
    InstallationWall mount
    CertificationsCE

    Datasheet

    HY-1221

    112/12/2024

    Similar Products

    Gas Release Alarm
    DahuaHY-1510

    Gas Release Alarm

    Gas Fire Extinguishing Controller
    DahuaHY-1601

    Gas Fire Extinguishing Controller