Technical FAQs

Ask a Question

Does a NEMA 3R NQOD panel require filler plates or does it come with twistouts ?

Understanding what is required to close off any openings in the panelboard dead front.

Product Line:


UL 67, UL 50, CSA C22.2 No.'s 20-M1989 & 94-M91, NEMA PB1, NFPA 70 Art. 408, Federal Specification W-P-115C Type 1 Class 1 , 2003 IBC, NFPA 5000, ASCE/SE17

Unused space in a panelboard must be covered in order to have a dead front assembly.

NQOD panelboards, regardless of enclosure type, are supplied with a branch breaker deadfront having metal twistouts over the circuit breaker area. A trim kit, or gutter cover assembly, is supplied with the enclosure to cover wire bending space.  NOTE:  NQOD panelboards are obsolete, superseded by NQ panelboards.

Was this helpful?
What can we do to improve the information ?