Certifications and compliances

NEC

• Class I, Division 2, Groups C, D
• UL standards: UL67, UL877
• NEMA 3, 7CD (Division 2), 12

• 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

• Bodies, covers and hinged doors – copper-free aluminum
• Breaker operating handles – type 6/6 nylon
• Interior parts – sheet steel