NSN: 5925-00-902-0217

Technical Characteristics

• Body Style

  12a single pole type

• Body Length

  3.750 inches nominal

• Boss Height

  0.156 inches nominal

• Mounting Surface To Terminal End Distance

  3.184 inches nominal

• Pole Quantity

  1

• Thread Quantity Per Inch

  32

• Maximum Continuous Load Current Rating Per Pole

  25.0 amperes dc single location

• Maximum Interrupting Capacity Current Type And Rating Per Pole In Amps

  5000.0 dc single location

• Trip Release Method

  magnetic-hydraulic single location

• Ultimate Trip Time Per Pole In Seconds

  0.180 minimum and 2.000 maximum single location

• Manual Actuator Type And Quantity

  1 toggle

• Internal Trip Release Configuration

  series trip single location

• Nominal Thread Size

  0.138 inches

• Trip Delay Time In Seconds Per Rated Continuous Current

  0.120 minimum at 200 pct and 0.160 maximum at 200 pct and 0.080 minimum at 400 pct and 0.140 maximum at 400 pct single location

• Design Control Reference

  ps2-3904-5

• Manufacturers Code

  23917

• Thread Series Designator

  unc

• Reference Number Differentiating Characteristics

  selected and tested for polaris weapon system

• Body Width

  0.984 inches nominal

• Case Material

  plastic

• Center To Center Distance Between Terminals Parallel To Length

  3.062 inches nominal

• Distance Between Centerlines Of Mounting Facilities Parallel To Body Length

  2.750 inches nominal

• Mounting Facility Type And Quantity

  2 threaded hole

• Operating Voltage Type And Rating Per Pole In Volts

  32.0 dc single location

• Circuit Protection Type

  overcurrent single location

• Trip Release Characteristic

  time delay single location

• Ultimate Trip Rating Of Continuous Current Rating Per Pole In Percent

  125.0 single location

• Reset Method

  manual

• Main Contact Tripping Mechanism Type

  trip free

• Actuator Function

  reset

• Actuator Position Designation

  at pole one

• Terminal Type And Quantity

  2 threaded stud