51-1918

Technical Characteristics

• First Flat Length

  0.250 inches nominal single actuator

• Overall Diameter

  1.140 inches minimum and 1.160 inches maximum

• Throw Quantity

  2 each section rear

• Nominal Thread Size

  0.375 inches single mounting facility

• Contact Voltage Rating In Volts

  115.0 ac at sea level

• Contact Voltage Rating In Volts

  28.0 dc at sea level

• Shaft Flat/Slot Angular Location

  180.0 degrees from contact position 1 single actuator

• Switch Actuator Indexing Position Quantity

  2 single actuator

• Switch Actuator Positioning Increment

  90.0 degrees single actuator

• Contact Load Current Rating

  5.0 amperes resistive load ac at sea level

• Thread Series Designator

  unef single mounting facility

• Thread Class

  2a single mounting facility

• Thread Length

  0.410 inches minimum single mounting facility and 0.470 inches maximum

• Overall Length

  2.980 inches maximum

• Flat Height

  0.205 inches minimum single actuator and 0.215 inches maximum

• Shaft Diameter

  0.248 inches minimum single actuator and 0.252 inches maximum

• Shaft Length

  0.760 inches minimum single actuator and 0.880 inches maximum

• Individual Section Quantity

  3

• Nonturn Device Type

  slotted bushing at 3:00 o'clock

• Switch Contact Basic Design

  nonpile-up symmetrical

• Pole Quantity

  1 each section rear

• Mounting Method

  threaded bushing single mounting facility

• Shaft Type

  round, flatted single actuator

• Terminal Type

  tab, solder lug

• Contact Switching Action

  breaks before makes each section rear

• Switch Actuator Stop Device Type

  fixed stop single actuator

• Contact Load Current Rating

  5.0 amperes resistive load dc at sea level and 2.5 amperes inductive load

• Style Designator

  9 tap, circular, bushing mount