TR478

Technical Characteristics

• Main Contact Maximum Voltage Rating In Volts

  128.0 ac and 28.0 dc

• Nominal Thread Size

  0.138 inches single mounting facility

• Nominal Operating Current Rating And Type

  10.0 milliamperes dc single winding

• Mounting Facility Type And Quantity

  3 threaded stud single mounting facility

• Overall Width

  1.400 inches nominal

• Environmental Protection

  hermetic

• Operating Voltage Rating And Type At Specified Temp

  110.0 volts teardrop, two holes type 4f single winding

• Winding Quantity

  1

• Center To Center Distance Between Mounting Facilities Parallel To The Altitude Of An Isosceles Triangle

  1.625 inches nominal single mounting facility

• Thread Class

  2a single mounting facility

• Mounting Facility Pattern

  triangle single mounting facility

• Main Contact Load Current Rating At Maximum Rated Voltage

  8.0 amperes ac resistive load and 8.0 amperes dc resistive load

• Pile-Up Main Contact Form Arrangement

  2a2c

• Overall Height

  1.060 inches nominal

• Coil Quantity

  1

• Thread Series Designator

  unc single mounting facility

• Overall Length

  1.620 inches nominal

• Duty Type

  continuous

• Winding Dc Resistance Rating

  6.2 kilohms nominal single winding

• Terminal Type And Quantity

  12 pin all functions