Alarm pressure switch with retard
- Certificate: UL Listed / FM Approved
- Standard: Comply to NFPA 13, 13D, 13R, 72
- Valve type: Wet sprinkler system alarm check valve
- Contact ratings: 10A at 125/250VAC, 2.5A at 30VDC
- Temperature: -40°C to 60°C
- Enclosure: IP54
- Surface: Corrosion resistant finish
Alarm pressure switch with retard is a pressure operated switch with an adjustable, instantly recycling pneumatic retard to prevent false alarms due to water pressure variation. It is connected into the alarm port of a wet sprinkler system alarm check valve.