540A

Technical Characteristics

• Contact Adjustment Type

  external actuation point hex nut

• Mounting Facility Pattern

  four position rectangular

• Unthreaded Mounting Hole Diameter

  0.170 inches nominal

• Longest Horizontal Distance Between Mounting Centers

  5.062 inches nominal

• Terminal Type

  screw

• Overall Height

  6.500 inches nominal

• Longest Vertical Distance Between Mounting Centers

  6.062 inches nominal

• Nominal Thread Size

  0.375 inches single pressure connection

• Mounting Method

  bracket and unthreaded hole

• Nonpile-Up Contact Arrangement

  1 pole, double throw, one position momentary

• Pressure Connector Type

  flared, threaded external single connection

• Overall Width

  5.500 inches nominal

• Style Designator

  rectangular w/bracket

• Contact Adjustability

  actuation point adjustable

• Thread Class

  2a single pressure connection

• Contact Action Stimulus

  increase

• Overall Length

  2.890 inches nominal

• Media For Which Designed

  gas

• Outside Diameter

  0.375 inches nominal single connection

• Thread Series Designator

  unef single pressure connection

• Pressure Switch Type

  absolute