7274-52-1/2

Technical Characteristics

• Bushing Length

  0.328 inches minimum and 0.390 inches maximum

• Actuator Function

  trip-reset

• Terminal Type And Quantity

  2 screw

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

  145.0 single location

• Thread Quantity Per Inch

  32

• Nominal Thread Size

  0.438 inches

• Circuit Protection Type

  overcurrent single location

• Trip Release Method

  thermal single location

• Manual Actuator Type And Quantity

  1 push-pull

• Pole Quantity

  1

• Internal Trip Release Configuration

  series trip single location

• Inclosure Protection Type For Which Designed

  explosion proof

• Trip Release Characteristic

  time delay single location

• Body Style

  single pole type

• Body Width

  0.531 inches minimum and 0.593 inches maximum

• Operating Voltage Type And Rating Per Pole In Volts

  120.0 ac single location and 30.0 dc single location

• Body Length

  0.719 inches minimum and 0.781 inches maximum

• Thread Pitch Diameters

  +0.444/+0.447 inches

• Mounting Surface To Terminal End Distance

  1.608 inches maximum

• Thread Series Designator

  uns

• Case Material

  plastic

• ~1

  single location

• Trip Delay Time In Seconds Per Rated Continuous Current

  1.000 maximum at 500 pct single location and 0.160 minimum at 500 pct single location and 20.000 maximum at 200 pct single location and 2.000 minimum at 200 pct single location and 0.046 minimum at 1000 pct single location and 0.200 maximum at 1000 pct

• Trip Release Ambient Temp Rating

  25.0 deg celsius nominal single location

• Main Contact Tripping Mechanism Type

  trip free

• Maximum Continuous Load Current Rating Per Pole

  2.0 amperes ac single location and 2.0 amperes dc single location

• Center To Center Distance Between Terminals Parallel To Length

  0.742 inches minimum and 0.804 inches maximum

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

  500.0 ac single location and 2000.0 dc single location

• Frequency In Hertz

  60.0 single location or 400.0 single location

• Reset Method

  manual

• Mounting Facility Type And Quantity

  1 threaded bushing w/panel seal

• Actuator Position Designation

  at pole one