503A502

Technical Characteristics

• Bushing Length

  0.380 inches maximum

• Inclosure Protection Type For Which Designed

  hermetically sealed and shock resistant and vibration resistant

• Maximum Continuous Load Current Rating Per Pole

  5.0 amperes dc single location

• Center To Center Distance Between Terminals Parallel To Length

  0.844 inches minimum and 0.906 inches maximum

• Thread Series Designator

  unef

• Mounting Surface To Terminal End Distance

  1.605 inches maximum

• Body Width

  0.625 inches maximum

• Body Style

  single pole type

• Operating Voltage Type And Rating Per Pole In Volts

  50.0 dc single location

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

  115.0 single location

• Body Length

  1.562 inches maximum

• Arc Quenching Method

  magnetic blowout

• Main Contact Tripping Mechanism Type

  trip free

• Trip Release Characteristic

  time delay single location

• Manual Actuator Type And Quantity

  1 toggle

• 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

• Case Material

  metal

• Pole Quantity

  1

• Terminal Type And Quantity

  2 wire hook and 2 tab, solder lug

• Circuit Protection Type

  overcurrent single location

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

  1000.0 dc single location

• Thread Quantity Per Inch

  32

• Nominal Thread Size

  0.375 inches

• Thread Pitch Diameters

  +0.3503/+0.3537 inches

• Actuator Function

  trip-reset

• Storage Type

  general purpose warehouse

• Actuator Position Designation

  at pole one

• Mounting Facility Type And Quantity

  1 threaded bushing w/panel seal

• Internal Trip Release Configuration

  relay trip single location

• Reset Method

  manual

• Unpackaged Unit Weight

  1.800 ounces

• Special Handling Feature

  magnetic

• Trip Release Method

  magnetic single location

• Fragility Factor

  moderately rugged