3-1900M4-12N

Technical Characteristics

• Thread Class

  2a

• Hazardous Locations/Environmental Protection

  explosion proof

• Overall Length

  3.085 inches maximum

• Flat Height

  0.205 inches minimum and 0.215 inches maximum

• Overall Diameter

  1.500 inches maximum

• Nonturn Device Type

  slotted bushing

• Switch Contact Basic Design

  nonpile-up symmetrical

• Pole Quantity

  1

• Contact Voltage Rating In Volts

  115.0

• Contact Voltage Rating In Volts

  28.0

• Rotor Through Connection Quantity

  1

• Switch Actuator Indexing Position Quantity

  12

• Terminal Type

  tab,solder lug

• Contact Switching Action

  breaks before makes

• Switch Actuator Stop Device Type

  fixed stop

• Contact Load Current Rating

  3.0 amperes resistive load and 2.0 amperes inductive load

• Thread Series Designator

  unef

• Thread Length

  0.400 inches minimum and 0.460 inches maximum

• First Flat Length

  0.240 inches minimum and 0.260 inches maximum

• Shaft Diameter

  0.248 inches minimum and 0.252 inches maximum

• Shaft Length

  0.750 inches minimum and 0.870 inches maximum

• Individual Section Quantity

  4

• Operating Temp Range

  m65.0/p125.0 deg celsius

• Throw Quantity

  12

• Mounting Method

  threaded bushing

• Nominal Thread Size

  0.375 inches

• Shaft Flat/Slot Angular Location

  180.0 degrees from contact position 1

• Shaft Type

  round,flatted

• Switch Actuator Positioning Increment

  22.5 degrees

• Contact Load Current Rating

  5.0 amperes resistive load