77-161-1

Technical Characteristics

• Thread Quantity Per Inch

  32

• Body Length

  1.448 inches minimum and 1.510 inches maximum

• Circuit Protection Type

  overcurrent single location

• Trip Delay Time In Seconds Per Rated Continuous Current

  1.000 minimum at 200 pct single location and 5.000 maximum at 200 pct single location

• Bushing Length

  0.360 inches minimum and 0.380 inches maximum

• Pole Quantity

  1

• Case Material

  metal

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

  750.0 ac single location

• Manual Actuator Type And Quantity

  1 toggle

• Fragility Factor

  moderately rugged

• Terminal Type And Quantity

  2 wire hook

• Mounting Surface To Terminal End Distance

  1.524 inches minimum and 1.586 inches maximum

• Body Width

  0.567 inches minimum and 0.629 inches maximum

• Reset Method

  manual

• Mounting Facility Type And Quantity

  1 threaded bushing w/panel seal

• Operating Voltage Type And Rating Per Pole In Volts

  28.0 dc single location

• 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

• Internal Trip Release Configuration

  series trip single location

• Maximum Continuous Load Current Rating Per Pole

  25.0 amperes dc single location

• 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

• Body Style

  single pole type

• Trip Release Method

  magnetic-hydraulic single location

• Thread Series Designator

  unef

• Center To Center Distance Between Terminals Parallel To Length

  0.870 inches minimum and 0.880 inches maximum

• Inclosure Protection Type For Which Designed

  explosion resistant and fungus resistant and hermetically sealed