AP-1-3-51-251

Technical Characteristics

• Fragility Factor

  moderately rugged

• Trip Release Method

  magnetic single location

• Special Handling Feature

  magnetic

• Terminal Type And Quantity

  3 wire hook

• Unpackaged Unit Weight

  1.800 ounces

• Reset Method

  manual

• Mounting Facility Type And Quantity

  1 threaded bushing w/panel seal

• Actuator Position Designation

  at pole one

• Storage Type

  general purpose warehouse

• Actuator Function

  trip-reset

• Thread Pitch Diameters

  +0.3503/+0.3537 inches

• Nominal Thread Size

  0.375 inches

• Thread Quantity Per Inch

  32

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

  1000.0 dc single location

• Circuit Protection Type

  overcurrent single location

• Pole Quantity

  1

• Case Material

  metal

• Trip Delay Time In Seconds Per Rated Continuous Current

  0.060 minimum at 200 pct single location and 0.600 maximum at 200 pct single location

• Manual Actuator Type And Quantity

  1 toggle

• Trip Release Characteristic

  time delay single location

• Main Contact Tripping Mechanism Type

  trip free

• Arc Quenching Method

  magnetic blowout

• Maximum Continuous Load Current Rating Per Pole

  250.0 milliamperes dc single location

• Body Length

  1.562 inches maximum

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

  115.0 single location

• Operating Voltage Type And Rating Per Pole In Volts

  50.0 dc single location

• Body Style

  single pole type

• Body Width

  0.625 inches maximum

• Mounting Surface To Terminal End Distance

  1.605 inches maximum

• Thread Series Designator

  unef

• Internal Trip Release Configuration

  shunt trip single location

• Inclosure Protection Type For Which Designed

  shock resistant and hermetically sealed and vibration resistant

• Center To Center Distance Between Terminals Parallel To Length

  0.844 inches minimum and 0.906 inches maximum

• Bushing Length

  0.380 inches maximum