973557-1C

Technical Characteristics

• Pole Quantity

  1 4th section front

• Detent Rotational Torque Range

  +2.000/+4.000 inch-pounds single actuator

• Throw Quantity

  4 3rd section rear

• Contact Switching Action

  breaks before makes 2nd section rear

• Throw Quantity

  4 2nd section rear

• Pole Quantity

  1 2nd section front

• Switch Actuator Stop Device Type

  fixed stop single actuator

• Nonturn Device Type

  slotted bushing at 3:00 o'clock

• Shaft Length

  0.834 inches minimum single actuator and 0.914 inches maximum single actuator

• First Flat Length

  0.240 inches minimum single actuator and 0.260 inches maximum single actuator

• Shaft Flat/Slot Angular Location

  195.0 degrees from nonturn device single actuator

• Overall Diameter

  1.250 inches maximum

• Switch Contact Basic Design

  nonpile-up symmetrical and nonpile-up nonsymmetrical

• Contact Voltage Rating In Volts

  28.0 dc at sea level

• Rotor Through Connection Quantity

  1 each section

• Shaft Diameter

  0.248 inches minimum single actuator and 0.251 inches maximum single actuator

• Thread Series Designator

  unef single mounting facility

• Terminal Type

  tab, solder lug

• Test Data Document

  96906-mil-std-202 standard (includes industry or association standards, individual manufactureer standards, etc.).

• Thread Class

  2a single mounting facility

• Switch Actuator Indexing Position Quantity

  4 single actuator

• Mounting Method

  threaded bushing single mounting facility

• Hazardous Locations/Environmental Protection

  explosion proof

• Contact Switching Action

  breaks before makes 4th section rear

• Shaft Type

  round, flatted single actuator

• Flat Height

  0.214 inches nominal single actuator

• Contact Load Current Rating

  1.0 amperes resistive load dc at sea level and 500.0 milliamperes inductive load dc at sea level

• Nominal Thread Size

  0.375 inches single mounting facility

• Style Designator

  tap, circular, bushing mount

• Individual Section Quantity

  4

• Err Default

  err default and err default

• Contact Switching Action

  breaks before makes 3rd section rear

• Overall Length

  3.014 inches maximum

• Switch Actuator Positioning Increment

  45.0 degrees single actuator

• Pole Quantity

  1 3rd section front

• Throw Quantity

  4 4th section rear