SM3-7-2-250-60-1

Technical Characteristics

• Mounting Facility Type And Quantity

  1 threaded bushing w/panel seal

• Actuator Position Designation

  at pole one

• Storage Type

  general purpose warehouse

• Actuator Function

  trip-reset

• Thread Pitch Diameters

  +0.3503/+0.3537 inches

• Maximum Continuous Load Current Rating Per Pole

  7.0 amperes ac single location

• Nominal Thread Size

  0.375 inches

• Thread Quantity Per Inch

  32

• Specification/Standard Data

  81349-mil-c-39019/1 government specification

• Circuit Protection Type

  overcurrent single location

• Inclosure Protection Type For Which Designed

  hermetically sealed

• Trip Delay Time In Seconds Per Rated Continuous Current

  0.550 minimum at 200 pct single location and 10.000 maximum at 200 pct single location

• Pole Quantity

  1

• Case Material

  metal

• Fragility Factor

  moderately rugged

• Trip Release Method

  magnetic single location

• Terminal Type And Quantity

  2 wire hook

• Special Handling Feature

  magnetic

• Operating Voltage Type And Rating Per Pole In Volts

  240.0 ac single location

• Bushing Length

  0.332 inches minimum and 0.380 inches maximum

• Reset Method

  manual

• Test Data Document

  81349-mil-c-55629 specification (includes engineering type bulletins, brochures,etc., that reflect specification type data in specification format; excludes commercial catalogs, industry directories, and similar trade publications, reflecting general type

• Manual Actuator Type And Quantity

  1 toggle

• Internal Trip Release Configuration

  series trip single location

• Trip Release Characteristic

  time delay single location

• Main Contact Tripping Mechanism Type

  trip free

• Arc Quenching Method

  magnetic blowout

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

  300.0 ac single location

• Body Length

  1.562 inches maximum

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

  115.0 single location

• Center To Center Distance Between Terminals Parallel To Length

  0.906 inches maximum

• Body Style

  single pole type

• Body Width

  0.625 inches maximum

• Frequency In Hertz

  60.0 single location

• Thread Series Designator

  unef

• Mounting Surface To Terminal End Distance

  1.700 inches maximum

• ~1

  data on certain environmental and performanc