ST-20683-1

Technical Characteristics

• Fragility Factor

  moderately rugged

• Cubic Measure

  31.500 cubic inches

• Mounting Facility Pattern

  rectangular single mounting facility

• Overall Width

  3.000 inches nominal

• Storage Type

  general purpose warehouse

• Frequency In Hertz

  60.0 nominal

• Environmental Protection

  hermetic

• Nominal Thread Size

  0.164 inches single mounting facility

• Mounting Facility Type And Quantity

  4 threaded stud single mounting facility

• Arc Quenching Method

  air

• Thread Quantity Per Inch

  32 single mounting facility

• Winding Quantity

  1

• Thread Class

  2a single mounting facility

• Case Material

  metal

• Operating Voltage Rating And Type At Specified Temp

  208.0 volts ac 25 deg celsius single winding

• Thread Direction

  right-hand single mounting facility

• Main Contact Maximum Voltage Rating In Volts

  120.0 ac and 28.0 dc

• Terminal Type And Quantity

  2 threaded stud dummy

• Overall Length

  3.500 inches nominal

• Main Contact Load Current Rating At Maximum Rated Voltage

  3.0 amperes ac resistive load and 5.0 amperes dc resistive load

• Nonpile-Up Main Contact Arrangement

  1 pole, single throw, normally open, momentary action and 1 pole, single throw, normally closed, momentary action

• Time Delay

  0.05 seconds minimum adjustable operate time and 0.30 seconds maximum adjustable operate time

• Purpose For Which Designed

  general

• Coil Quantity

  1

• Overall Height

  3.000 inches nominal

• Thread Series Designator

  unc single mounting facility

• Center To Center Distance Between Mounting Facilities Parallel To Length

  2.375 inches nominal single mounting facility

• Center To Center Distance Between Mounting Facilities Parallel To Width

  2.125 inches nominal single mounting facility

• Duty Type

  continuous

• Terminal Type And Quantity

  6 threaded stud energizing element and contacts