Square D Digest 179

NQ Panelboards—240 Vac, 48 Vdc

NQ Panelboard Accessories Online Refer to NQ Panelboards

www.se.com/us

NQ Merchandised Accessories

Table 9.36: NQ Merchandised Neutral Assemblies Mains Rating (Amps)

Copper 100% Neutral Kit

200% Neutral Kit

Catalog No.

Space Factor

Catalog No.

Space Factor

NQNL1 NQNL2

NQN1CU NQN2CU

100 225 225 400 600

0 0 6 0

0 0

NQNL2ACCY [113]

NQNL4 [114]

100A 9 PANELBOARDS 225A

NQN6CU

0

– 0 Table 9.37: NQ Merchandised Sub-feed Lugs, Feed-through Lugs, and Sub-feed Breaker Kits Mains Rating Sub-feed Lugs Catalog Number Feed-through Lugs Catalog Number

Sub-feed Circuit Breaker Kits (breaker not incl.) SingleSFB TwoSFBs

100 A not available; use 225 A interior

NQSFL1

—

—

NQFTL2L [115] NQFTL2H [115] NQFTL4L [117] NQFTL4H [115]

NQSFB2Q or NQSFB2HJ [116]

NQSFL2

—

NQSFB4Q or NQSFB4HJ or NQMB6PPL [118][116] NQSFB6PPL [118] or NQMB6PPL

NQSFL4

NQSFB4Q or NQSFB4HJ

400A

Factory Assembled Only

Factory Assembled Only

600A

Not Available

NOTE: See Table 9.38 and Table 9.39. Table 9.38: Box Selection Table: Merchandised NQ Main Lug Panelboards with Accessories

Sub-feed Lugs

Feed-through Lugs

Sub-feed Circuit Breakers

Feature Circuits

400A/ 600A (one)

400A(two)

600A(two)

100 A 225 A 400 A 600 A

100 A 225 A 400 A 600 A 100 A 225 A (one)

18 30 42 54 72 84

MH26 — — MH32 MH38 MH50 — MH44 MH50 — MH44 MH56 — MH50 MH62 — MH56 MH68

— — —

—

—

—

—

MH38 MH50 MH38 MH56 MH44 MH62 MH50 MH68 MH56 MH68

— MH50 — MH56 — MH56 — MH62 — MH68

MH74 MH74 MH80 MH86 MH92

MH62D9 MH62D9 MH68D9

Factory Assembled Only

Factory Asssembled Only

Factory Asssembled Only

Use225A Interior

—

— Table 9.39: Box Selection Table: Merchandised NQ Vertically Mounted Main Breaker Panelboards w/ Accessories (by Mains Rating)

Feed-through Lugs

PowerPacT H, J, or Q Sub-feed Circuit Breakers (Max Amp and Qty)

Feature Circuits

400 A (two SFB)

400A

600 A (two SFB)

100A 225A

600A

100 A 225 A (one)

LA / LH MB PowerPacT L MB

LA / LH MB PowerPacT L MB

18 30 42 54 72 84

— —

—

—

—

— — — — — —

—

—

—

—

— —

MH62 MH68 MH74 MH80 MH80

MH62 MH68 MH74 MH80

MH86 MH92 [119]

MH86D9

MH50

MH68D9 MH74D9 MH80D9 MH86D9

Factory Asssembled Only

Factory Asssembled Only

— MH56 — MH62 — MH68

— — —

[119]

Table 9.40: NQ Optional Lugs Ampacity

Al Compression Lug Kit

Cu Mechanical Lug Kit

Cu Compression Kit

Catalog No.

Lug Wire Range (AWG-kcmil)

Catalog No.

Lug Wire Range (AWG-kcmil)

Catalog No.

Lug Wire Range (AWG-kcmil)

NQALV1 NQALV2 NQALV4 NQALV6

NQCUM1 NQCUM2 NQCUM4 NQCUM6

NQCUV1 NQCUV2 NQCUV4 NQCUV6

100 225 400 600

one#8–1/0 one#4–300 two 2/0–500 two 2/0–500

one#6–2/0 one#6–250

one#6–1/0 one 2/0–300 one 400–700 two 250–500

one 1/0–750 or two 1/0–350

Neutral Terminations in NQ Panelboards [120]

Add-on Neutral Lug Capacity in Merchandised NQ Panelboards [121]

NQ100AN [122]

Q1150AN [123]

NQ200AN [124] #4 - 300 kcmil

Catalog Number

Branch Circuit Terminals Provided in Neutral Assembly (AWG or kcmil)

Lug Wire Range (AWG or kcmil) #14 Neutral Terminations Required [125] Max. Circuit Breaker Amps

#14 - 2/0

#1 - 4/0

Panelboard Interior Ampacity

Branch Circuit Pole Spaces

2

3

2

#14 - #4

#14 - #6

#14 - 2/0

70 - 110A

110 - 150A

150 - 200A

18 30 42 54 72 84 30 42 54 72 84

20 34 42 60 90 90 16 23 45 60 60

– – – – – –

– – – – – – 4 4 2 4 4

4 5 5 5 5 5 4 7 5 8 0

3 5 5 3 3 3 2 3 3 3 3

– – – – – – 2 2 2 2 2

100 A or 225 A

22 22 11 22 22

400 A or 600 A

[113] For 225 A panel with SFL, FTL, or SFB. [114] Not to be used with SFL, FTL, or SFB. These combinations are factory assembled only. [115] The final character H indicates the kit is used for High circuit count interiors 54, 72, and 84. [116] 3-pole HD, HG or HR sub-feed circuit breaker should be selected for single phase 110–150 A applications. [117] The final character L indicates the kit is used for Low circuit count interiors 30 and 42. [118] PowerPacT L Circuit Breakers require 8.75 in. deep enclosures. [119] Requires box longer than available box offer. [120] Quantity of terminations is the same for copper and aluminum neutral assemblies. [121] Allowances shown are for installation of only one type of add-on neutral lug type. When mixing add-on neutral lug types in a panelboard: 1) the total quantity may not exceed the maximum shown in that row of the table. 2) the capacity for NQ100AN is reduced by twice the quantity of NQ200AN and Q1150AN installed. [122] Each 1 pole 70 A QO(B)170(VH) installed reduces maximum add-on lug quantity by two. A QO70AN may be used in place of an NQ100AN to create a neutral termination for a 70 A QO(B)- (VH) circuit breaker. [123] Not allowed in 100 A NQ panelboards. [124] One NQ200AN is required provide neutral termination for every two 175 - 200 A QO (VH) circuit breakers. [125] Number of Terminations Required to Install Add-on Lug to NQ Neutral assembly. Lugs may block 1-4 additonal terminations depending upon where each is installed.

9-18

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