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AKM 35600/47500 Pressure Control Switch
Brand: Qualitrol CompanyDesigned 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
Brand
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