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AKM 35600/47500 Pressure Control Switch

Brand: Qualitrol Company

Designed to provide operating control, limit or alarm functions for transformers and load tap changers.

Contacts can be factory set or adjusted as needed. The snap-action switch automatically resets when pressure returns to pre-set conditions.

Pressure and/or vacuum switches can be combined on a common manifold and protected by optional enclosure.

Optional pressure indicators (dial gauges) are available on select models.
Features
  • Reliable alarming for rising or falling pressure
  • Compact design is easy to install
  • Numerous configurations available for many applications
  • Available with cut off valve for field testing of switches
  • Tested and certified to be reliable
  • Reliable snap-action switch resets automatically – no manual reset is required
  • The single pole single throw (SPST) and single pole double throw (SPDT) switches are UL and CSA listed
  • Switches may be applied on systems using steam, air and other non-combustible gases
  • Pressure settings can be factory-set and/or adjustable by equipment manufacturer on select models
  • The high electrical rating of the snap-action switch often saves on the need for expensive relays

Specifications

Actuator Plate

  • Stainless Steel

Bellows

  • Phosphor Bronze

Case

  • Cold Rolled Steel with ANSI #70 Light Gray Coating

Electrical Connectors Type

  • Flying Leads
  • Quick Connectors
  • Screw Terminal
  • Sealed-Weatherproof Connector

Housing & Cover

  • Powder-Coated Aluminum

Mounting

  • Center Back Vertical Mounting

Number of Switches

  • 2 or 3

Pressure Connection Material

  • Brass

Standard Operating Temperature

  • -40° to 80° C (-40° to 176° F)

Switch Rating

  • 0.1 A at 220 Vdc, L/R = 40 msec
  • 0.15 A at 125 Vdc, L/R = 40 msec
  • 0.2 A at 110 Vdc, L/R = 40 msec
  • 0.4 A at 220 Vdc, Resistive
  • 0.6 A at 125 Vdc, Resistive
  • 0.8 A at 110 Vdc, Resistive
  • 3 A at 250 Vac, Resistive
  • 5 A at 125 Vac, Resistive

Switch Type

  • SPDT
  • SPST

Tank Connection

  • 1/4”-18 NPT, 5/16” Compression Fitting
  • Flange Diameter 110 mm
  • G 3/8”
  • M26 x 1.5 mm

Vibration Resistance

  • Not Affected when Subjected to 50 or 60 Hz or Whole Multiples Thereof
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