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Dwyer Photohelic A3301 Differential Pressure Switch/Gauge Series A3000
Dwyer Photohelic A3301 Differential Pressure Switch/Gauge Series A3000
Dwyer Photohelic A3301 Differential Pressure Switch/Gauge Series A3000
Dwyer Photohelic A3301 Differential Pressure Switch/Gauge Series A3000

Dwyer Photohelic A3301 Differential Pressure Switch/Gauge Series A3000

$ 26.4

Availability: 100 in stock
  • Termination Type: Screw
  • Power: 1/3 HP
  • Current Type: AC/DC
  • Current Rating: 10 A
  • Number of Positions: 2
  • Item Length: 8 1/4 in
  • Operation Method: On/Off
  • Item Width: 5 in
  • Coil Voltage: 120 VAC
  • Condition: Used and in great condition. Removed from a working sterile glovebox. May show some cosmetic signs of wear.
  • Maximum Amperage: 10 A
  • Mounting Style: Panel Mount
  • Item Height: 5 in
  • Model: A3301
  • Contact Configuration: DPDT
  • Number of Circuits: 2
  • All returns accepted: ReturnsNotAccepted
  • Suitable For: Panel Mount
  • MPN: Photohelic A3301
  • Operating Temperature: 20 - 120 F
  • Type: Differential Switch
  • Application: HVAC
  • Brand: Dwyer
  • Switch Style: Relay

    Description

    Dwyer Photohelic A3301 (Series A3000) Pressure Switch/Gauge.  Removed from a working device and in great condition.  See photos for what's included.
    From Dwyer website:
    The
    Series A3000 Photohelic® Switch/Gages
    function as versatile, highly repeatable pressure switches combined with a precise pressure gage employing the time-proven Magnehelic® gage design. The Photohelic® switch/gage measures and controls positive, negative or differential pressures of air and compatible gases. Standard models are rated to 25 psig (1.7 bar) with options to 35 (2.4) or 80 (5.5 bar) psig. Two phototransistor actuated, DPDT relays are included for low/high limit control. Easy to adjust set point indicators are controlled by knobs located on the gage face. Individual set point deadband is one pointer width - less than 1% of full scale. Set points can be interlocked to provide variable deadband - ideal for control of fans, dampers, etc. Gage reading is continuous and unaffected by switch operation, even during loss of electrical power. Choose from full scale pressure ranges from a low 0-.25 in (0-6 mm) w.c. up to 30 psi (21 bar).