21899-61

Technical Characteristics

• Style Designator

  circular wafer, bushing mount

• Throw Quantity

  2 1st section rear

• Pole Quantity

  4 1st section rear

• Precious Material And Location

  contacts silver

• Err Default

  err default

• Contact Switching Action

  makes before breaks each section rear

• Pole Quantity

  4 2nd section rear

• Shaft Flat/Slot Angular Location

  270.0 degrees from nonturn device single actuator

• Precious Material

  silver

• Throw Quantity

  2 2nd section rear

• Contact Load Current Rating

  1.0 amperes resistive load ac at sea level

• Nominal Thread Size

  0.375 inches single mounting facility

• Pole Quantity

  2 1st section front

• Flat Height

  0.213 inches minimum single actuator and 0.223 inches maximum single actuator

• Shaft Type

  round, flatted single actuator

• Overall Width

  1.250 inches minimum and 1.300 inches maximum

• Mounting Method

  threaded bushing single mounting facility

• Thread Class

  2a single mounting facility

• Nonturn Device Type

  tab at 3:00 o'clock

• Shaft Length

  1.000 inches nominal single actuator

• Nonturn Device Radius

  0.531 inches nominal at 3:00 o'clock

• Terminal Type

  tab, solder lug

• Contact Voltage Rating In Volts

  110.0 ac at sea level

• Switch Contact Basic Design

  nonpile-up symmetrical

• Thread Series Designator

  unef single mounting facility

• Switch Actuator Indexing Position Quantity

  2 single actuator

• Shaft Diameter

  0.248 inches minimum single actuator and 0.250 inches maximum single actuator

• Overall Height

  1.340 inches maximum

• Contact Switching Action

  makes before breaks 1st section front

• Overall Length

  2.456 inches nominal

• Contact Voltage Rating In Volts

  28.0 dc at sea level

• Switch Actuator Positioning Increment

  30.0 degrees single actuator

• Contact Load Current Rating

  2.0 amperes resistive load dc at sea level

• First Flat Length

  0.312 inches nominal single actuator

• Individual Section Quantity

  2

• Throw Quantity

  2 1st section front