28-1921-3

Technical Characteristics

• Contact Voltage Rating In Volts

  115.0 ac at sea level

• Overall Length

  3.392 inches nominal

• Contact Switching Action

  breaks before makes each section rear

• Err Default

  err default

• Operating Temp Range

  -55.0/+125.0 deg celsius

• First Flat Length

  0.250 inches nominal single actuator

• Individual Section Quantity

  5

• Style Designator

  tap, circular, bushing mount

• Nominal Thread Size

  0.375 inches single mounting facility

• Shaft Type

  round, flatted single actuator

• Hazardous Locations/Environmental Protection

  explosion proof

• Mounting Method

  threaded bushing single mounting facility

• Contact Load Current Rating

  5.0 amperes resistive load ac at sea level

• Thread Class

  2a single mounting facility

• Terminal Type

  tab, solder lug

• Switch Actuator Positioning Increment

  36.0 degrees single actuator

• Switch Contact Basic Design

  nonpile-up symmetrical

• Thread Series Designator

  unef single mounting facility

• Shaft Diameter

  0.248 inches minimum single actuator and 0.250 inches maximum single actuator

• Contact Load Current Rating

  3.0 amperes resistive load dc at sea level and 2.0 amperes inductive load dc at sea level

• Rotor Through Connection Quantity

  1 each section

• 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

• Shaft Length

  1.062 inches nominal single actuator

• Switch Actuator Indexing Position Quantity

  5 single actuator

• Throw Quantity

  5 each section rear

• Pole Quantity

  1 each section front

• Nonturn Device Type

  slotted bushing at 3:00 o'clock

• Switch Actuator Stop Device Type

  fixed stop single actuator

• Flat Height

  0.205 inches minimum single actuator and 0.215 inches maximum single actuator

• Overall Diameter

  1.100 inches nominal