PSF109S DesignFlex miniature vacuum switch, a high current switch with controllable hysteresis and field adjustable set point.

DesignFlex PSF109S engineering drawing showing miniature vacuum switch size measurements.

Shown with .250" Smooth Port

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PSF109S SWITCH SERIES

SENSING VACUUM SWITCH | HIGH CURRENT

A NEW controllable hysteresis (deadband) and wide-range field adjustable set point highlight the versatile PSF109S high-current vacuum switch. Additionally, our exclusive DesignFlex™ modular components (by World Magnetics) allow you to quickly custom design a proven PSF109S vacuum switch for your application. Choose from our standard PSF109S switch options or contact our vertically integrated in-house engineering team for custom switch design, unique applications / special features, rapid prototyping and prompt manufacturing turnaround.

Standard Options: low port (vacuum), set point, case material, diaphragm, mounting and more.

FEATURES / BENEFITS
  • Controllable hysteresis (deadband)
  • Field adjustable vacuum set point, from -3" H2O to -12 psi
    (-2" H2O available as fixed set point)
  • Snap action basic switch, up to 25A*, 125/250 VAC
    *Not available on all ranges
  • .250" diameter; 1/8" NPT; or 1/4" Quick Connect Fitting port
  • Custom design and engineering available
  • Small size, lightweight, low relative cost
  • Dependable long life (10+ million cycles)

SPECIFICATIONS

MECHANICAL

Standard Tolerance

±20% (Tighter tolerances available)

Switch Type

SPDT normally open or normally closed

Switching Medium

Air; compatible fluids

Mechanical Life

More than 10 million cycles

Operating Temp.

+40°F to +150°F (standard) | -46°F to +205°F (contact us)

PHYSICAL

Case Material

Polycarbonate (optional: Lexan 141, Supec®, Ultem®, Noryl®

Vacuum Port Options

.250" diameter, 1/8" NPT, Quick Connect Fitting Port

Diaphragm Material

Polyurethane (Teflon® optional)

Contact Points

Silver (Gold available on special order)

Electrical Connections

Terminals - .187"x.020" tab-type for use with quick disconnects (ref. AMP #2-520182-2 or equivalent) .250" available - contact us

Mounting

#2 Screws through eyelets; mounting bracket available

Weight

Less than 20 grams

ELECTRICAL

Current Rating

Varies by option

Operating Voltage

125/250 VAC

PSF109S vacuum switch chart showing set point range in Hg, H20, mbar, psi, port style and electrical rating.