APL1R557-020

Technical Characteristics

• Thread Series Designator

  unc

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

  1000.0 ac single location

• Reset Method

  manual

• Center To Center Distance Between Terminals Parallel To Length

  1.928 inches minimum and 1.948 inches maximum

• Actuator Position Designation

  at pole one

• Inclosure Protection Type For Which Designed

  shock resistant and vibrationproof and moisture resistant and salt spray proof

• Storage Type

  general purpose warehouse

• Actuator Function

  trip-reset

• Mounting Facility Type And Quantity

  2 threaded hole

• Mounting Surface To Terminal End Distance

  2.611 inches maximum

• Thread Quantity Per Inch

  32

• Body Width

  0.740 inches minimum and 0.760 inches maximum

• Circuit Protection Type

  overcurrent single location

• Operating Voltage Type And Rating Per Pole In Volts

  250.0 ac single location

• Switch Contact Arrangement

  single pole, double throw

• Switch Current Rating And Type In Amps

  2.5 ac and 1.0 dc

• Special Handling Feature

  magnetic

• Switch Terminal Type

  tab, solder lug

• Trip Release Method

  magnetic single location

• Fragility Factor

  moderately rugged

• Switch Voltage Rating And Type In Volts

  250.0 ac and 50.0 dc

• Pole Quantity

  1

• Maximum Continuous Load Current Rating Per Pole

  400.0 milliamperes ac single location

• Manual Actuator Type And Quantity

  1 toggle

• Internal Trip Release Configuration

  series trip single location

• Nominal Thread Size

  0.138 inches

• Trip Release Characteristic

  time delay single location

• Main Contact Tripping Mechanism Type

  trip free

• Arc Quenching Method

  magnetic blowout

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

  115.0 single location

• Frequency In Hertz

  400.0 single location

• Distance Between Centerlines Of Mounting Facilities Parallel To Body Length

  2.052 inches minimum and 2.072 inches maximum

• Body Style

  single pole type

• Trip Delay Time In Seconds Per Rated Continuous Current

  10.000 minimum at 200 pct single location and 70.000 maximum at 200 pct single location

• Thread Pitch Diameters

  +0.1177/+0.1214 inches

• Auxiliary Switch Function And Quantity

  1 alarm

• Body Length

  2.490 inches minimum and 2.510 inches maximum

• Boss Height

  0.130 inches minimum and 0.150 inches maximum

• Switch Location And Position Designation

  internal at pole one

• Case Material

  plastic

• Terminal Type And Quantity

  2 threaded stud