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Pressure Switches

EPSA40 Supervisory Pressure Switch

EPSA40 supervisory pressure switches are designed for use in wet, dry, deluge, and pre-action automatic sprinkler systems to indicate a discharge from a sprinkler.

EPSA40 supervisory pressure switches are designed for use in wet, dry, deluge, and pre-action automatic sprinkler systems to indicate a discharge from a sprinkler. They feature field adjustable pressure sensitivity that provides an alarm response between 10 and 100 psi. All models are factory-set for use in a nominal 40 psi system. Their pressure adjustment wheel requires no special tools and does not affect switch synchronization. The EPSA40 supervisory pressure switches are NEMA 4 rated.

Features & Benefits:
  • Sensitivity adjustment wheel, no special tools required
  • Reinforced diaphragm resists pressure spikes
  • Two conduit entrances
  • Both 1- and 2-switch models available
Certifications:
  • ULC Listed
  • FM Approved
  • NEMA 4 Rated

Others

  • Switching Differential
    • 6 pounds per square inch
    • 3 pounds per square inch
  • Maximum Adjustment Pressure
    • 100 pounds per square inch
  • Minimum Adjustment Pressure
    • 10 pounds per square inch
  • Connection Type
    • Male NPT
  • Minimum Operating Ambient Temperature
    • -40 degree Fahrenheit
    • -40 degree Celsius
  • Switch Configuration
    • SPDT
  • Connection Size
    • 1/2 inch
  • Maximum Operating Ambient Temperature
    • 160 degree Fahrenheit
    • 71 degree Celsius

Others

  • Switching Differential
    • 6 pounds per square inch
    • 3 pounds per square inch
  • Maximum Adjustment Pressure
    • 100 pounds per square inch
  • Minimum Adjustment Pressure
    • 10 pounds per square inch
  • Connection Type
    • Male NPT
  • Minimum Operating Ambient Temperature
    • -40 degree Fahrenheit
    • -40 degree Celsius
  • Switch Configuration
    • SPDT
  • Connection Size
    • 1/2 inch
  • Maximum Operating Ambient Temperature
    • 160 degree Fahrenheit
    • 71 degree Celsius
  • Switching Differential : 6 pounds per square inch|3 pounds per square inch
  • Maximum Adjustment Pressure : 100 pounds per square inch
  • Minimum Adjustment Pressure : 10 pounds per square inch
  • Connection Type : Male NPT
  • Minimum Operating Ambient Temperature : -40 degree Fahrenheit|-40 degree Celsius
  • Switch Configuration : SPDT
  • Connection Size : 1/2 inch
  • Maximum Operating Ambient Temperature : 160 degree Fahrenheit|71 degree Celsius
Image
SKU
Description
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EPSA40-1
Low Pressure Supervisory Switch, 1 SPDT, 10–100psi, ULC, UL
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EPSA40-2
High/Low Pressure Supervisory Switch, 2 SPDT, 10–100psi, ULC, UL