D2PB Series Circuit Breaker Panelboards


D2PB Circuit Breaker Panelboards are designed specifically for use:

  • In Class I, Division 2, Groups C, D hazardous areas where flammable vapors or gases may be present due to accident or abnormal locations
  • In damp, wet or corrosive locations
  • Indoors or outdoors in Division 2 areas of petroleum refineries, chemical and petrochemical plants and other process industry facilities
Number of Poles 1 or 2
Voltages 120/240 VAC max.
Trip Ratings 15; 20; 30A
Main Lug Sizes 1/0 or 4/0
Body, Cover and Hinged Door Material Copper-free aluminum
Breaker Operating Handle Material Type 6/6 nylon
Interior Parts Material Sheet steel


  • Enclosures are of external flange design – interior is completely accessible when cover is removed
  • Provided with concealed mounting – made possible by having four clearance holes for lag screws or mounting bolts in the back of the enclosure, one in each corner
  • The interior sub-assembly, consisting of a mounting plate, main terminal blocks and circuit breakers, is removable as a complete unit
  • Ample gutter space is provided for ease of field wiring
  • Circuit breakers are contained in compact, individual factory sealed enclosures suitable for Class I, Division 2, Groups C, D hazardous areas
  • Gasketed main cover, which excludes dirt and moisture, is attached to the body with hex head bolts and is removed only when installing the panelboard or making wiring changes; in the center of the main cover is a gasketed hinged door, which provides access only to the circuit breaker operating handles, and is held closed by two quick release catches; the door can be locked by as many as three padlocks to prevent unauthorized operation
  • Tapped conduit openings are provided for main conduit and branch circuits; standard openings can be reduced or plugged to meet most installation requirements
  • Circuit breakers are arranged in two vertical rows and have the circuit numbers marked on the handles; the left row is numbered 1, 3, 5, 7, etc. and the right row 2, 4, 6, 8, etc.; identifying information may be typed on the circuit directory card attached to the inside of the hinged door