2131850-28

Technical Characteristics

• Case Material

  metal

• Center To Center Distance Between Terminals Parallel To Length

  0.875 inches nominal

• Center To Center Distance Between Terminals Parallel To Width

  0.625 inches nominal

• Nonturn Device Location

  at 3 oclock and at 9 oclock

• Nonturn Device Length

  0.135 inches minimum and 0.145 inches maximum

• Nonturn Device Diameter

  0.245 inches minimum and 0.255 inches maximum

• Mounting Surface To Terminal End Distance

  1.780 inches maximum

• Mounting Facility Type And Quantity

  1 threaded bushing w/panel seal

• Storage Type

  general purpose warehouse

• Special Handling Feature

  magnetic

• Maximum Continuous Load Current Rating Per Pole

  10.0 amperes dc second location

• Maximum Continuous Load Current Rating Per Pole

  15.0 amperes dc third location

• Maximum Continuous Load Current Rating Per Pole

  7.0 amperes ac first location

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

  300.0 ac first location

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

  500.0 dc second location

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

  500.0 dc third location

• Circuit Protection Type

  overcurrent all locations

• Trip Release Method

  magnetic all locations

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

  115.0 all locations

• Internal Trip Release Configuration

  series trip all locations

• Nominal Thread Size

  0.375 inches

• Trip Delay Time In Seconds Per Rated Continuous Current

  0.070 minimum at 200 pct all locations and 0.700 maximum at 200 pct

• Frequency In Hertz

  50.0 first location or 60.0

• Unpackaged Unit Weight

  3.600 ounces

• Thread Series Designator

  unef

• Terminal Type And Quantity

  6 wire hook

• Thread Pitch Diameters

  0.3503 to 0.3537 inches

• Body Style

  1b multipole-single actuator type

• Bushing Length

  0.380 inches maximum

• Body Length

  1.500 inches maximum

• Body Width

  1.875 inches maximum

• Nonturn Device Radius

  0.620 inches minimum and 0.630 inches maximum

• Fragility Factor

  moderately rugged

• Pole Quantity

  3

• Arc Quenching Method

  magnetic blowout

• Thread Quantity Per Inch

  32

• Operating Voltage Type And Rating Per Pole In Volts

  115.0 ac first location

• Operating Voltage Type And Rating Per Pole In Volts

  50.0 dc second location

• Operating Voltage Type And Rating Per Pole In Volts

  50.0 dc third location

• Trip Release Characteristic

  time delay all locations

• Reset Method

  manual

• Main Contact Tripping Mechanism Type

  trip free

• Manual Actuator Type And Quantity

  1 toggle

• Actuator Function

  trip-reset

• Actuator Position Designation

  at pole two

• Inclosure Protection Type For Which Designed

  hermetically sealed and shockproof and vibrationproof