NSN: 5945-00-295-4508

Technical Characteristics

• Mounting Facility Type And Quantity

  4 unthreaded hole single mounting facility

• Mounting Facility Pattern

  rectangular single mounting facility

• Duty Type

  intermittent

• Overall Height

  4.000 inches nominal

• Main Contact Load Current Rating At Maximum Rated Voltage

  500.0 milliamperes dc resistive load

• Winding Quantity

  2

• Center To Center Distance Between Mounting Facilities Parallel To Length

  3.000 inches nominal single mounting facility

• Nominal Operating Current Rating And Type

  500.0 milliamperes dc all windings

• Winding Dc Resistance Rating

  20.0 ohms nominal all windings

• Unthreaded Mounting Hole Diameter

  0.196 inches nominal single mounting facility

• Main Contact Maximum Voltage Rating In Volts

  29.0 dc

• End Item Identification

  model no. b-57a

• Overall Length

  4.000 inches nominal

• Coil Quantity

  1

• Operating Voltage Rating And Type At Specified Temp

  28.0 volts teardrop, two holes type 4f all windings

• Center To Center Distance Between Mounting Facilities Parallel To Width

  3.000 inches nominal single mounting facility

• Overall Width

  4.000 inches nominal