128-250-101

Technical Characteristics

• Thread Series Designator

  unc

• Switch Voltage Rating And Type In Volts

  250.0 ac and 30.0 dc

• Switch Current Rating And Type In Amps

  10.0 ac and 5.0 dc

• Switch Terminal Type

  tab,solder lug

• Inclosure Protection Type For Which Designed

  moisture resistant

• Switch Location And Position Designation

  internal at pole one

• Nominal Thread Size

  0.138 inches

• Internal Trip Release Configuration

  series trip

• Actuator Function

  trip-reset

• Circuit Protection Type

  overcurrent

• Operating Voltage Type And Rating Per Pole In Volts

  50.0 dc

• Thread Quantity Per Inch

  32

• Pole Quantity

  1

• Mounting Surface To Terminal End Distance

  1.828 inches minimum and 1.860 inches maximum

• Boss Height

  0.125 inches minimum and 0.155 inches maximum

• Switch Contact Arrangement

  single pole,double throw

• Distance Between Centerlines Of Mounting Facilities Parallel To Body Length

  2.050 inches minimum and 2.070 inches maximum

• Case Material

  plastic

• Body Style

  single pole type

• Terminal Type And Quantity

  2 threaded stud

• Unpackaged Unit Weight

  4.750 ounces

• Trip Delay Time In Seconds Per Rated Continuous Current

  0.130 minimum at 200 pct and 1.200 maximum at 200 pct

• Auxiliary Switch Function And Quantity

  1 alarm

• Actuator Position Designation

  at pole one

• Manual Actuator Type And Quantity

  1 toggle

• Main Contact Tripping Mechanism Type

  trip free

• Reset Method

  manual

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

  125.0

• Trip Release Characteristic

  time delay

• Trip Release Method

  magnetic-hydraulic

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

  1000.0 dc

• Maximum Continuous Load Current Rating Per Pole

  50.0 amperes dc

• Storage Type

  unimproved open

• Mounting Facility Type And Quantity

  2 threaded hole

• Arc Quenching Method

  magnetic blowout

• Center To Center Distance Between Terminals Parallel To Length

  1.924 inches minimum and 1.952 inches maximum

• Body Width

  0.738 inches minimum and 0.750 inches maximum

• Body Length

  2.480 inches minimum and 2.500 inches maximum