1600CT1901

NQ Interiors

Main Lug Interiors (MLO)cULus Listed up to 240 Vac, or 48 Vdc

OEM customers have two ways to order NQ main lug interiors:

Order a main lug interior from Digest 178, Section 9 (referencing the part number key below).

See NQ OEM Main Lug Interior Examples for OEM main lug only interior special offers.

NQ Main Lug Interior Part Numbering

NQ 4 42 L 2 C GS NL  
              Blank = Standard or no neutral
NL = 200% neutral (non-linear)

NQM442L2CGSNL

            14 = Fits in 14" wide enclosures
Blank = Standard width interior (fits in 20" wide enclosures)
G = isolated ground S = short rails
          C = copper
Blank = aluminum
        Mains rating:
1 = 100 A
2 = 225 A
4 = 400 A
6 = 600 A
      Main:
L = Lugs only
B or M = Circuit breaker
    Circuit breaker counts: 18, 30, 24, 36, 42, 54, 66, 72, 84, 126
  Blank= Single-phase
4 = 3-phase 4-wire
3 = 3-phase 3-wire
Family: NQ, NF

NQ Interior Features:

  • NQ panelboards accept plug-on and bolt-on circuit breakers, up to 150 A.

  • Main lugs interiors are available for 1P 3W, 3P 4W, or 3P 3W AC systems

    • 3-phase high leg delta or corner grounded delta are available factory assembled

    • 1P 2W interiors are UL Listed for DC applications up to 48 Vac

  • 100 A, 225 A, 400 A, or 600 A mains rating

    • 225 A to 400 A interiors are convertible to main circuit breaker by adding a main circuit breaker and adapter kit

  • Available from stock with silver/tin copper or tin-plated aluminum bus.

    • Tin-plated or silver-plated copper bus is available as an option.

  • Branch connector fingers are tin-plated copper; silver-plated branch connectors are optional.

    • Aluminum or copper bus up to 400 A

    • Copper only at 600 A

Main Circuit Breaker Interiors (MB)240 Vac, 48 Vdc

OEM customers have two ways to order a main circuit breaker interior panel:

NQ MB 2 HJ    
        Blank = Kit for standard 20" width interiors
14 = Kit for 14-inch-wide interiors

NQMB2HJ

      Main circuit breaker frame types (PowerPact H, J, or Q)
    Interior mains rating (see Main Lug Interiors (MLO)<span><span><span style="font-family: Arial; ">—</span></span></span>cULus Listed up to 240 Vac, or 48 Vdc)
  Main circuit breaker
Family: NQ, NF
  • A main circuit breaker may be factory installed onto nearly all NQ interiors

  • Main circuit breaker kits and interiors up to 400 A are available from stock (refer to Digest 178, Section 9).

NQ Panelboard Main/Sub-Feed Circuit Breakers

Installation Methods Circuit Breaker Frame Ampacity Digest 178
Branch mounted
on Interior
QOB/QOB-VH 15 to 150 A See Digest 178, Section 9
Vertical Main* *,
Sub-feed* *
HD, HG, HJ, HL, HR 15 to 150 A See Digest 178, Section 7
Vertical Main* *,
Sub-feed* *
JD, JG, JJ, JL, JR 150 to 225 A See Digest 178, Section 7
Vertical Main*, Sub-feed* QB, QD, QG, QJ 70 to 225 A See Digest 178, Section 7
Vertical Main* * LA/LH 125 to 400 A See Digest 178, Section 7
Vertical Main* ** LD, LG, LJ, LL 125 to 600 A See Digest 178, Section 7

For more information about 100 A, 225 A, 400 A, and 600 A main circuit breaker NQ panelboards please review Catalog 1640CT0801,See Digest 178, Section 9, PowerPact H, J, L Catalog (0611CT1001), PowerPact Q-Frame Catalog (0734CT0201), or LA, LH, Q4 Catalog (0601CT9101).

NQ Single-Row (Column-width) Interiors240 Vac Bolt-On

https://www.schneider-electric.us/en/download/document/0100CT1901/NQ column-width panelboards (see Tables 9.84 - 9.85 (see Digest 178) are for AC applications up to 240 Vac. They meet Federal Specification W-P-115c, Type 1, Class 1, and are UL Listed. NQ column-width panelboard accept 10 A–60 A bolt-on, 1-, 2-, and 3-pole QOB branch circuit breakers. QOB-VH (60 A max.) and QHB (30 A max.) branch circuit breakers are also available as factory assembled.

  • Mains ratings: 100 A, 225 A

  • Branch circuit breakers: 60 A max. bolt-on

NQ 8   10 M 1 C SB HR  
                Blank = Std. surf. mount
HR = Hinged right
HL = Hinged left (trim front)

NQM810M1CSB8

              SB = split bus
Blank = Standard bus
            Copper bus
          Interior rating
1 = 100 A
2 = 225 A
        L = Main lugs only
B, M = Main circuit breaker (including back-fed)
      Circuit count: 8*, 10*, 20, 30, or 42
    Blank = 1-phase
3 = 3-phase 3-wire
4 = 3-phase 4-wire
  8 = Column width (8.625")
Family: NQ, NF

NQ 14-inch-wideMerchandised Interiors and Enclosures 240Vac, or 48 Vdc max.

14-inch-wide NQ panelboards provide most the capabilities of standard width NQ interiors for applications where equipment space is limited. 14-inch-wide interiors accept bolt-on and plug-on branch circuit breakers up to 100 A. 3 Ph 4 W and 1 Ph 3 W interiors are available. See Digest 178, Section 9 for more information.

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