NSN: 5925-01-044-3990

Technical Characteristics

• Fragility Factor

  moderately rugged

• Switch Terminal Type

  tab, solder lug

• Pole Quantity

  3

• Circuit Protection Type

  overcurrent all locations

• Reset Method

  manual

• Switch Location And Position Designation

  internal at pole three

• Storage Type

  general purpose warehouse

• Body Width

  1.844 inches minimum and 1.906 inches maximum

• Trip Release Characteristic

  time delay all locations

• Actuator Function

  trip-reset

• Inclosure Protection Type For Which Designed

  moisture resistant and hermetically sealed

• Internal Trip Release Configuration

  series trip all locations

• Switch Voltage Rating And Type In Volts

  125.0 ac and 50.0 dc

• Thread Pitch Diameters

  +0.3503/+0.3537 inches

• Nominal Thread Size

  0.375 inches

• Thread Quantity Per Inch

  32

• Switch Current Rating And Type In Amps

  1.0 ac and 0.5 dc

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

  300.0 ac all locations

• Mounting Surface To Terminal End Distance

  1.690 inches minimum and 1.710 inches maximum

• Terminal Type And Quantity

  6 wire hook

• Auxiliary Switch Function And Quantity

  1 alarm

• Center To Center Distance Between Terminals Parallel To Width

  0.615 inches minimum and 0.635 inches maximum

• Thread Series Designator

  unef

• Operating Voltage Type And Rating Per Pole In Volts

  250.0 ac all locations

• Bushing Length

  0.365 inches minimum and 0.385 inches maximum

• Arc Quenching Method

  magnetic blowout

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

  115.0 all locations

• Main Contact Tripping Mechanism Type

  trip free

• Frequency In Hertz

  60.0 all locations

• Manual Actuator Type And Quantity

  1 toggle

• Center To Center Distance Between Terminals Parallel To Length

  0.865 inches minimum and 0.885 inches maximum

• Case Material

  metal

• Body Length

  1.552 inches minimum and 1.572 inches maximum

• Trip Delay Time In Seconds Per Rated Continuous Current

  0.500 minimum at 200 pct all locations and 4.500 maximum at 200 pct all locations

• Body Style

  multipole-single actuator type

• Switch Contact Arrangement

  single pole, double throw

• Maximum Continuous Load Current Rating Per Pole

  3.0 amperes ac all locations

• Actuator Position Designation

  at pole two

• Mounting Facility Type And Quantity

  1 threaded bushing

• Trip Release Method

  magnetic-hydraulic all locations