HB3Z1-91

Technical Characteristics

• Thread Pitch Diameters

  0.3503 to 0.3537 inches

• Body Style

  1b multipole-single actuator type

• Bushing Length

  0.380 inches maximum

• Body Length

  1.562 inches maximum

• Body Width

  1.937 inches maximum

• Pole Quantity

  3

• Iii Special Handling Feature

  magnetic

• Thread Quantity Per Inch

  32

• Maximum Continuous Load Current Rating Per Pole

  4.0 amperes ac all locations

• Operating Voltage Type And Rating Per Pole In Volts

  240.0 ac all locations

• Trip Release Characteristic

  time delay all locations

• Reset Method

  manual

• Manual Actuator Type And Quantity

  1 toggle

• Actuator Function

  trip-reset

• Actuator Position Designation

  at pole two

• Definitive Government Spec/Std Reference

  m39019/05-91

• Manufacturers Code

  81349

• Test Data Document

  81349-mil-c-39019 specification

• Case Material

  metal

• Center To Center Distance Between Terminals Parallel To Length

  0.906 inches maximum

• Center To Center Distance Between Terminals Parallel To Width

  0.625 inches nominal

• Iii Fragility Factor

  moderately rugged

• Mounting Surface To Terminal End Distance

  1.828 inches maximum

• Iii Arc Quenching Method

  magnetic blowout

• Mounting Facility Type And Quantity

  1 threaded bushing w/panel seal

• Iii Storage Type

  general purpose warehouse

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

  300.0 ac all locations

• 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

• Main Contact Tripping Mechanism Type

  trip free

• Internal Trip Release Configuration

  series trip all locations

• Nominal Thread Size

  0.375 inches

• Trip Delay Time In Seconds Per Rated Continuous Current

  0.055 minimum at 200 pct and 0.950 maximum at 200 pct all locations

• Inclosure Protection Type For Which Designed

  hermetically sealed

• Frequency In Hertz

  400.0 all locations

• Non-Definitive Government Spec/Std Reference

  mil-c-39019/5

• Thread Series Designator

  unef

• Terminal Type And Quantity

  6 wire hook

• Specification/Standard Data

  81349-mil-c-39019/5 government specification