2-2557-2

Technical Characteristics

• Precious Material And Location

  contacts silver and contact surfaces gold

• Shaft Length

  0.498 inches nominal single actuator

• Switch Actuator Positioning Increment

  45.0 degrees single actuator

• Contact Voltage Rating In Volts

  115.0 ac at sea level

• Contact Switching Action

  makes before breaks 3rd section rear

• Err Default

  err default

• Individual Section Quantity

  4

• Overall Length

  2.290 inches nominal

• Shaft Diameter

  0.123 inches minimum single actuator and 0.126 inches maximum single actuator

• First Flat Length

  0.250 inches nominal single actuator

• Style Designator

  tap, circular, bushing mount

• Precious Material

  silver and gold

• Shaft Type

  round, flatted single actuator

• Nonturn Device Type

  pin at 3:00 o'clock

• Contact Switching Action

  makes before breaks 4th section rear

• Shaft Flat/Slot Angular Location

  22.5 degrees from contact position 1 single actuator

• Hazardous Locations/Environmental Protection

  explosion proof

• Mounting Method

  threaded bushing w/panel seal single mounting facility

• Overall Diameter

  0.623 inches maximum

• Throw Quantity

  1 each section rear

• Thread Class

  2a single mounting facility

• Terminal Type

  tab, solder lug

• Operating Temp Range

  -65.0/+125.0 deg celsius

• Switch Contact Basic Design

  nonpile-up symmetrical

• Thread Series Designator

  unef single mounting facility

• Nonturn Device Radius

  0.250 inches nominal at 3:00 o'clock

• Contact Load Current Rating

  250.0 milliamperes resistive load dc at sea level and 120.0 milliamperes inductive load dc at sea level

• Flat Height

  0.097 inches minimum single actuator and 0.103 inches maximum single actuator

• Contact Voltage Rating In Volts

  28.0 dc at sea level

• Pole Quantity

  8 each section rear

• Contact Switching Action

  breaks before makes 1st section rear

• Switch Actuator Indexing Position Quantity

  8 single actuator

• Features Provided

  metallic inclosure

• Nominal Thread Size

  0.250 inches single mounting facility

• Contact Switching Action

  breaks before makes 2nd section rear

• Contact Load Current Rating

  250.0 milliamperes resistive load ac at sea level