DMS 78012B

Technical Characteristics

• Body Style

  10b multipole-single actuator type

• Body Width

  4.750 inches nominal

• Case Material

  plastic

• Center To Center Distance Between Terminals Parallel To Width

  1.500 inches nominal

• Unthreaded Mounting Hole Diameter

  0.250 inches nominal and 0.406 inches nominal

• Distance Between Centerlines Of Mounting Facilities Parallel To Body Length

  4.250 inches nominal

• Distance Between Centerlines Of Mounting Facilities Parallel To Body Width

  1.500 inches nominal

• Boss Height

  0.312 inches nominal

• Mounting Surface To Terminal End Distance

  6.812 inches nominal

• Mounting Facility Type And Quantity

  4 unthreaded hole

• Operating Voltage Type And Rating Per Pole In Volts

  125.0 ac and 125.0 dc all locations

• Trip Release Method

  thermal-magnetic all locations

• Trip Release Characteristic

  instantaneous and time delay all locations

• Main Contact Tripping Mechanism Type

  trip free

• Actuator Position Designation

  at pole two

• Internal Trip Release Configuration

  series trip first location

• Internal Trip Release Configuration

  series trip second location

• Trip Delay Time In Seconds Per Rated Continuous Current

  0.050 nominal at 200 pct all locations

• Special Features

  auxiliary switch connected in series w/shunt trip coil

• Frequency In Hertz

  60.0

• Body Length

  5.000 inches nominal

• Center To Center Distance Between Terminals Parallel To Length

  3.625 inches nominal

• Switch Contact Arrangement

  single pole, single throw, normally open

• Pole Quantity

  3

• Maximum Continuous Load Current Rating Per Pole

  200.0 amperes ac and 200.0 amperes dc all locations

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

  10000.0 ac and 5000.0 dc all locations

• Circuit Protection Type

  overcurrent all locations

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

  138.0

• Reset Method

  manual

• Manual Actuator Type And Quantity

  1 toggle

• Actuator Function

  trip-reset

• Auxiliary Switch Function And Quantity

  1 control

• Internal Trip Release Configuration

  shunt trip third location

• Terminal Type And Quantity

  7 threaded stud

• Switch Voltage Rating And Type In Volts

  125.0 ac and 125.0 dc

• Switch Current Rating And Type In Amps

  10.0 ac and 10.0 dc

• Switch Terminal Type

  tab, solder lug

• Trip Release Ambient Temp Rating

  50.0 deg celsius nominal all locations

• Inclosure Protection Type For Which Designed

  fungus resistant and moisture resistant

• Switch Location And Position Designation

  internal at pole three