A837B

Technical Characteristics

• Nominal Thread Size

  0.138 inches single mounting facility

• Center To Center Distance Between Mounting Facilities Parallel To Length

  3.406 inches nominal single mounting facility

• Mounting Facility Pattern

  rectangular single mounting facility

• Nonpile-Up Auxiliary Contact Arrangement

  2 pole, single throw, normally closed, momentary action

• Overall Height

  3.680 inches nominal

• Thread Quantity Per Inch

  32 single mounting facility

• Center To Center Distance Between Mounting Facilities Parallel To Width

  1.750 inches nominal single mounting facility

• Winding Dc Resistance Rating

  175.0 ohms nominal third winding

• Nonpile-Up Main Contact Arrangement

  2 pole, single throw, normally closed, momentary action

• Winding Dc Resistance Rating

  16.0 ohms nominal first winding

• Coil Quantity

  3

• Nominal Operating Current Rating And Type

  1.82 amperes dc all windings

• Mounting Facility Type And Quantity

  4 threaded hole single mounting facility

• Overall Width

  2.250 inches nominal

• Overall Length

  4.620 inches nominal

• Main Contact Load Current Rating At Maximum Rated Voltage

  3.0 amperes dc resistive load

• Auxiliary Contact Maximum Voltage Rating In Volts

  28.0 dc

• Terminal Type And Quantity

  14 pin all functions

• Operating Voltage Rating And Type At Specified Temp

  28.0 volts teardrop, two holes type 4f all windings

• Main Contact Maximum Voltage Rating In Volts

  28.0 dc

• Thread Series Designator

  unc single mounting facility

• Thread Class

  2b single mounting facility

• Winding Quantity

  3

• Duty Type

  continuous

• Winding Dc Resistance Rating

  9.5 ohms nominal second winding