Description
Emergency start stop button – Overview
DHI-HY-1221 Emergency Start/Stop Button is a crucial component of the gas fire extinguishing control system. When the “start” button is pressed, the corresponding gas fire extinguishing zone enters the emergency delay start process; pressing the “stop” button before the delay ends will interrupt the start process.
Technical Specification
| Operating Voltage | DC24V |
| Operating Current | Static Current: ≤ 400μA Activation Current: ≤ 500μA |
| Indicator Lights | Automatic: 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 Range | Electronically encoded, with any setting between 1 and 254 |
| Communication Distance | ≤ 1500 m (4921.26 ft) |
| Communication Mode | Two-wire bus |
| Operating Temperature | -10°C to +55°C (+14°F to +131°F) |
| Storage Temperature | -20°C to +65°C (-4°F to +149°F) |
| Operating Humidity | ≤ 95% RH (no condensation) |
| Dimensions | 127.0 mm × 149.0 mm × 40.0 mm (5.0″ × 5.9″ × 1.6″) |
| Weight | 0.67 kg (1.48 lb) |
| Installation | Wall mount |
| Certifications | CE |
