NSN: 5945-00-925-3806

Technical Characteristics

• Overall Height

  2.120 inches nominal

• Duty Type

  continuous

• Mounting Facility Type And Quantity

  3 threaded stud

• Pile-Up Main Contact Form Arrangement

  2c

• Nominal Thread Size

  0.138 inches

• Mounting Facility Pattern

  isosceles triangle

• Time Delay

  0.01 seconds nominal

• Time Delay

  0.025 seconds nominal

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

  1.187 inches nominal

• Main Contact Maximum Voltage Rating In Volts

  115.0 ac and 26.5 dc

• Thread Series Designator

  unc

• Terminal Type And Quantity

  8 pin

• Thread Class

  2a

• Overall Length

  1.840 inches nominal

• Overall Width

  1.460 inches nominal

• Environmental Protection

  hermetic

• End Item Identification

  type no. rt-688/sps-51

• Winding Quantity

  1

• Coil Quantity

  1

• Winding Dc Resistance Rating

  425.0 ohms nominal

• Operating Voltage Rating And Type At Specified Temp

  26.5 volts dc 25 deg celsius

• Main Contact Load Current Rating At Maximum Rated Voltage

  2.0 amperes ac and 2.0 amperes dc