8-540B

Technical Characteristics

• Overall Length

  2.000 inches nominal

• Thread Quantity Per Inch

  18

• Actuator Diameter

  1.375 inches nominal

• Mounting Method

  threaded bushing

• Actuator Color

  black single actuator

• Nonpile-Up Contact Arrangement

  2 two circuit, double break/double make, one position momentary single switch unit

• Body Length

  2.000 inches nominal

• Nominal Thread Size

  1.125 inches

• Overall Width

  1.688 inches nominal

• Inclosure Type

  fully inclosed

• Bushing Length

  0.406 inches nominal

• Overall Height

  3.312 inches nominal

• Body Width

  1.688 inches nominal

• Hazardous Locations/Environmental Protection

  oil resistant

• Maximum Voltage Rating In Volts

  550.0 ac and 550.0 dc

• Actuator Style

  round, flush

• Body Style

  bushing mounted

• Thread Series Designator

  unef

• Contact Load Current Rating At Maximum Rated Voltage

  400.000 milliamperes resistive dc and 1.200 amperes resistive ac

• Terminal Type And Quantity

  8 screw