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NF Factory Assembled Panelboards

Common Features

Class 1670 / Refer to Catalog 1670CT9601

 

Table 9.69:

Sub-Feed (Double) Lugs (Standard Aluminum Mechanical Lugs) An additional mains end termination point that can be used to feed out to another panelboard or device from the incoming service lines. Available on main lug interiors only.

Mains Rating	Sub-Feed Wire Range Wire Bending Space per NEC Table 373-6	$ Price
125 A	two #10–2/0 Cu or two #6–2/0 Al	128.
250 A	two 1/0–350 kcmil Al/Cu	128.
400 A	one 1/0–600 kcmil Cu	344.
600 A	(4) 4/0–500 kcmil Al/Cu	344.
800 A	(3) 3/0–500 kcmil Al/Cu	522.

 

Table 9.70:

Sub-Feed Lug Cabinet Data (Standard Aluminum Mechanical Lugs)

Max. No. of Branch Spaces	Main Lugs Box Height (20" W x 5.75" D)
	125 A	250 A	400 A	600 A	800 Aa
12	26	—	—	—	—
18	26	—	—	—	—
30	32	38	50	68	74
42	—	44	56	74	80
54	—	50	62	80	86

a	800 A main lug panelboards require a 26" wide box.

 

Table 9.71:

Feed-Thru Lugs (Standard Aluminum Mechanical Lugs) A second set of lugs assembled at the opposite end from the mains of the panelboard. Often used to connect another panelboard or device to the incoming lines. Available on main lugs and main circuit breaker panelboards.

Mains Rating	Feed-Thru Wire Range Wire Bending Space per NEC Table 373-6	$ Price
125 A	one #6–250 kcmil Al/Cu	344.
250 A	one #6–350 kcmil Al/Cu	344.
400 A	one 1/0–750 kcmil or two 1/0–350 kcmil Al/Cu	826.
600 A	two 1/0–600 kcmil Al/Cu	826.
800 A	(3) 4/0–500 kcmil Al/Cu	1632.

 

Table 9.72:

Feed-Thru Lug Cabinet Data (Standard Aluminum Mechanical Lugs)

Max. No. of Branch Spaces	Box Height (20" W x 5.75" D)
	125 A	100/125 A		250 A		400 A LA/LH		600 A		800 A
	Main Breaker (Back-fed only)	Main Lugs	Main Breaker	Main Lugs	Main Breaker	Main Lugs	Main Breaker	Main Lugs c	Main Breaker b	Main Lugs d
12	—	32	44	—	—	—	—	—	—	—
18	38	32	44	—	—	—	—	—	—	—
30	44	38	50	50	62	56	68	56	68	56
42	50	—	—	56	68	62	74	62	74	62
54	—	—	—	62	74	68	80	68	80	68

b	600 A main circuit breaker panelboards require an 8" deep, 26" wide box.

c	600 A main lug panelboards require a 26" wide box.

d	800 A main lug panelboards require an 8.75” deep, 26" wide box.

 

Equipment Ground Bar		38.
Copper Ground Bar	(Add to Equipment Ground Bar $ Price)	52.
Insulated/Isolated Ground Bar	(Add to Equipment Ground Bar $ Price)	86.
Name Plates
Standard white face/black letter laminated bakelite, 1" x 3.5", adhesive backed or screw mountable with screws in a bag assembly
($ Price includes engraving)		78.
Copper Bus Bars
$ Price Adder
	100 A, 250 A	458.
	400 A	624.
	600 A & 800 A	Std.
Copper Neutral
$ Price Adder
	100 A–600 A	132.
	800 A	176.

 

200% Rated Neutrals
Panelboards with 200% rated neutrals are available with sub-feed lugs, feed-thru lugs, and main circuit breakers
Add Per Panel
	250 A	762.
	400 A	950.
	600 A	1262.
	800 A	1894.
Metal directory frame
(Not available with LC/LI main circuit breaker)		140.