501A301

Technical Characteristics

• Bushing Length

  0.315 inches nominal

• Case Material

  metal

• Pole Quantity

  1

• Mounting Facility Type And Quantity

  1 threaded bushing

• Storage Type

  general purpose warehouse

• Thread Quantity Per Inch

  32

• Operating Voltage Type And Rating Per Pole In Volts

  50.0 dc

• Trip Release Method

  magnetic

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

  125.0

• Manual Actuator Type And Quantity

  1 toggle

• Actuator Function

  trip-reset

• Internal Trip Release Configuration

  series trip

• Nominal Thread Size

  0.138 inches

• Trip Delay Time In Seconds Per Rated Continuous Current

  1.000 minimum at 200 pct and 4.000 maximum at 200 pct

• Unpackaged Unit Weight

  1.200 ounces

• Terminal Type And Quantity

  2 wire hook

• Inclosure Protection Type For Which Designed

  hermetically sealed

• Thread Series Designator

  unef

• Body Length

  1.750 inches maximum

• Body Width

  0.625 inches maximum

• Center To Center Distance Between Terminals Parallel To Length

  0.687 inches nominal

• Mounting Surface To Terminal End Distance

  1.635 inches nominal

• Arc Quenching Method

  air

• Maximum Continuous Load Current Rating Per Pole

  300.0 milliamperes dc

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

  500.0 dc

• Circuit Protection Type

  overcurrent

• Trip Release Characteristic

  time delay

• Reset Method

  manual

• Main Contact Tripping Mechanism Type

  trip free

• Actuator Position Designation

  at pole one