• Service Environment: Indoor or Outdoor use, all parts have
corrosion resistant finishes
• Temperature Range: 0℃ - 80℃
• Cover Tamper: Tamper Resistant Screws
Optional Cover Tamper Switch Available
• Electrical Ratings: 15 Amps at 125/250VAC
• Appliance Standards: NFPA-13, NFPA-13D,
NFPA-13R, NFPA-72
• Statement: The Model MXHQ Supervisory Switch is used to
monitor the open or close status of an OS&Y (outside screw
and yoke) type gate valve. There are two sizes, the model
MXHQ D50 serves the OS&Y Gate valves ranging in size
from 2"-16"(50mm - 400mm), the other model MXHQ D450
is fit for the OS&Y Gate valves ranging in size from 18"-
24"(450mm - 600mm).