21EN77-2

Technical Characteristics

• Actuator Roller Width

  0.120 inches nominal

• Overall Width

  1.000 inches nominal

• Housing Diameter

  1.000 inches nominal

• Actuator Roller Diameter

  0.500 inches nominal

• Overall Height

  1.000 inches nominal

• Actuator Free Position Height

  1.781 inches nominal

• Overall Length

  2.761 inches nominal

• Thread Series Designator

  unef

• Body Style

  bushing mounted

• Housing Bushing Length

  0.657 inches nominal

• Contact Load Current Rating At Maximum Rated Voltage

  3.000 amperes inductive dc and 4.000 amperes resistive dc and 4.000 amperes motor dc and 5.000 amperes resistive ac and 5.000 amperes inductive ac

• Actuator Style

  roller plunger

• Housing Length

  0.980 inches maximum

• Switch Actuating Force

  96.0 ounces minimum and 192.0 ounces maximum

• Terminal Type And Quantity

  6 wire lead

• Maximum Voltage Rating In Volts

  115.0 ac and 28.0 dc

• Actuator Movement

  0.250 overtravel inches minimum and 0.040 pretravel inches maximum and 0.020 differential inches maximum

• Nominal Thread Size

  0.625 inches

• Inclosure Type

  fully inclosed

• Nonpile-Up Contact Arrangement

  2 pole, double throw, one position momentary single switch unit

• Switch Release Force

  64.0 ounces minimum