Neutrals
100–225 A
Neutral Assembly![]() |
Typical
Neutral Assemblies![]() ![]() 600 A |
NQNL2: 225 A Copper 200% Neutral Assembly ![]() |
Neutral assemblies are installed onto NQ panelboard interiors, except for some OEM specific commercial references.
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All lugs suitable for copper or aluminum wire.100–600 A Ready-to-install interiors have split neutral located on same end as mains.
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Neutral assemblies on some Factory Assembled Panelboards may be located at opposite end of interior from the mains.
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Bondable for use as service entrance in USA. Panelboards with neutral assemblies and barriers suitable for Canadian service entrance are available factory assembled.
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Branch terminals are suitable for AWG #12–#4 aluminum and #14–#4 copper. 400 A and 600 A neutrals include at least two #14-2/0 terminals.
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Provisions for #14-2/0 and larger branch terminal lugs may be added with use of auxiliary neutral lugs.
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All unused neutral terminals may be used to terminate equipment grounding conductors when panelboard is bonded and used as service entrance.
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100% rated neutrals. One neutral terminal provided per circuit in panelboard.
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200% rated neutrals are available as factory-assembled options or as kits.
Field Installable Copper 100% Neutral Kits
Amperes | Catalog Number |
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100 | |
225 | |
400/600* |
Field Installable 200% Neutral Kits
Amperes | Catalog Number |
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100 | |
225 | |
400 |
200% Neutral Restrictions
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Compression lugs on 200% neutrals not available with accessories (feed through lugs, sub feed lugs).
225 A, 200% Neutral
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Integral lighting contactors are not available.
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Not available on column width or 14" wide interiors.
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If sub-feed lugs, feed-through lugs, or sub-feed circuit breakers are required, order the following 200% neutral kit: NQNL2ACCY.
400 A, 200% Neutral
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NEMA Type 3R, 5, and 12 enclosures require copper-bussed interiors.
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Integral lighting contactors are not available.
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NQNLEP neutral plate available for 400 A panelboards equipped with 200% neutrals and sub-feed lugs, feed-through lugs, or sub-feed circuit breakers.
600 A, 200% Neutral
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NEMA Type 3R, 5, and 12 enclosures require copper-bussed interiors.
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Integral lighting contactors are not available.
Condo Riser Neutral Assembly
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available factory installed on 400 A or 600 A interiors.
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provides 36 AWG #14–2/0 and 36 AWG #14-#4 Cu-Al terminal.
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accepts (4) 1/0-750 kcmil line cables and (8) 3/0-750 kcmil load cables
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available for 100% or 200% neutral assemblies.
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requires 26" wide enclosures.
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adds 12 in. (305 mm) to length of main lug only panelboards.
Auxiliary Neutral Lugs
Lugs are suitable for copper or aluminum wire and are field-installable on neutral assembly.
Optional Ground Bar / Neutral Bar Lugs
Catalog Number | Lug Wire Range (AWG - kcmil) |
Wire Amperage | Max. Qty. of Add-on Lugs per Neutral* | |
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100 A / 225 A | 400 A / 600 A | |||
#12 to #2 Al or #14 to #4 Cu | 70 A | 8–20 | 4–12 | |
#14 to #2/0 Al or Cu | 80–100 A | 6–14 | 4–10 | |
#1 to #4/0 Al or Cu | 110–150 A | 6–10 | 4–6 | |
(2) #4 to 300 kcmil Al or Cu | 175–200 A | – | 2 |
Oversized Neutral Lugs
The next larger ampacity neutral assembly may be installed on 100 A, 225 A and 400 A interiors to provide oversized neutral lugs.
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400 A and 600 A NQ Panelboards may be ordered with factory assembled oversized neutral lug assemblies containing up to four lugs that each accept one 1/0-750 MCM or (2) 1/0-300 MCM Mechanical Lugs, in either Aluminum or Copper.
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100% and 200% Neutral Assemblies are available in 400 A NQ Panelboards.
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Oversized Neutral Lugs add up to 12" to the enclosure length, and are available for interiors with sub-feed lugs, feed-thru lugs, and sub-feed breakers.