Appendix 1: Specifications

Typical Wiring

Panelboard Typical Wiring*

Voltage AC	1-Phase Panelboards		1-Phase Panelboards
Voltage AC	Phase	Wires	Phase	Wires
208Y/120	—	—	3	4
120/240	1	3	—	—
240*	1	2	3	4
240*	1	3	—	—
240/120*	—	—	3	4 Delta

Integral Main or Sub-Feed: DJ, FI, KI, H, J, LA, LC, LH, QB, QD, QG, QJ, QO(B)VH

NQ/NQM 100–225 A Main Lugs or 100–250 A Main Circuit Breaker Diagram

NQ Panelboard or QONQ Load Center 400–600 A Main Lugs or Main Circuit Breaker with or without Feed-Through Lugs Diagram

NQ Panelboard or QONQ Load Center 400–600 A Main Circuit Breaker with Feed-Through Lugs or Sub-Feed Circuit Breakers

Typical NQ Panelboard with Split Bus Diagram

Panelboard Ratings

Refer to local codes and standards for more information. The series rated system label is located in the bag assembly.

Series Connected Circuit Breaker Ratings (RMS Symmetrical)

Series Ratings listed at higher system voltages apply to lower system voltages (Example: 240 3P/3W covers 208Y/120 3P/4W).
Short circuit tests are conducted at 100–105% of the maximum rated voltage of the panelboard.
“MC” denotes Mission Critical circuit breakers.
Where LG is shown, LJ and LL can be used.
Unless otherwise noted, main circuit breakers can be applied at the maximum available amperage rating.
Suffixes HID, SWD, and SWN may also be applied to the applicable branch circuit breakers shown below.
Where QO(B) circuit breakers are shown below, QO(B)H, QO(B)VH, and QH(B) circuit breakers may also be used.
Two-pole CAFI circuit breakers cannot be used on three-phase systems.

Max. System Voltage AC: 120/240 1P/3W, 208Y/120 3P/4W, 240/120 3P/4W

Max. Short Circuit Current Rating	Square D Brand Integral or Remote Main Circuit Breakers and Remote Main Fuses	Square D Brand Branch Circuit Breaker Catalog Designation and Allowable Ampere Ranges
Max. Short Circuit Current Rating		Type	1-Pole	2-Pole	3-Pole
18,000	LA/LH MC	QO(B)	15–30 A	15–30 A	—
22,000	QO(B) VH QOB-VH	QO(B)	15–70 A	15–125 A	—
		QO(B) GFI	15–30 A	15–60 A	—
		QO(B) EPD	15–30 A	15–60 A	—
		QO(B) PL	15–30 A	15–60 A	—
		QO(B) AFI	15–20 A	—	—
		QO(B) CAFI	15–20 A	15–20 A	—
		QO(B) DF	15–20 A	—	—
25,000	QD	QO(B)	15–70 A	15–125 A	—
		QOB-VH	—	150 A	—
		QO(B) PL	15–30 A	15–60 A	—
		QO(B) GFI	15–30 A	15–60 A	—
		QO(B) EPD	15–30 A	15–60 A	—
		QO(B) AFI	15–20 A	—	—
		QO(B) CAFI	15–20 A	15–20 A	—
		QO(B) DF	15–20 A	—	—
	ED	QO(B)	15–70 A	15–125 A	—
		QO(B) GFI	15–30 A	15–60 A	—
		QO(B) EPD	15–30 A	15–60 A	—
		QO(B) AFI	15–20 A	—	—
		QO(B) CAFI	15–20 A	15–20 A	—
		QO(B) DF	15–20 A	—	—
	BD, HD, JD, LD	QO(B)	15–70 A	15–125 A	—
		QOB-VH	—	150 A	—
		QO(B) PL	15–30 A	15–60 A	—
		QO(B) GFI	15–30 A	15–60 A	—
		QO(B) EPD	15–30 A	15–60 A	—
		QO(B) AFI	15–20 A	—	—
	BD, HD, JD, LD	QO(B) CAFI	15–20 A	15–20 A	—
	BD, HD, JD, LD	QO(B) DF	15–20 A	—	—
42,000	LA, MA	QO(B)	15–30 A	15–30 A	—
65,000	QG	QO(B)	15–70 A	15–125 A	—
		QO(B) VH	15–70 A	15–125 A	—
		QOB-VH	—	150 A	—
		QO(B) GFI	15–30 A	15–60 A	—
		QO(B) PL	15–30 A	15–60 A	—
		QO(B) AFI	15–20 A	—	—
		QO(B) CAFI	15–20 A	15–20 A	—
		QO(B) DF	15–20 A	—	—
	EG	QO(B)	15–70 A	15–125 A	—
	EG	QO(B) GFI	15–30 A	15–60 A	—
		QO(B) EPD	15–30 A	15–60 A	—
		QO(B) EPE	—	—	—
		QO(B) AFI	15–20 A	—	—
		QO(B) CAFI	15–20 A	15–20 A	—
		QO(B) DF	15–20 A	—	—
	BG, HG, JG, LG	QO(B)	15–70 A	15–125 A	—
		QOB-VH	—	150 A	—
		QO(B) PL	15–30 A	15–60 A	—
		QO(B) GFI	15–30 A	15–60 A	—
		QO(B) EPD	15–30 A	15–60 A	—
		QO(B) AFI	15–20 A	—	—
		QO(B) CAFI	15–20 A	15–20 A	—
		QO(B) DF	15–20 A	—	—
100,000	QJ	QO(B)	15–70 A	15–125 A	—
		QOB-VH	—	150 A	—
		QO(B) PL	15–30 A	15–60 A	—
		QO(B) GFI	15–30 A	15–60 A	—
		QO(B) EPD	15–30 A	15–60 A	—
		QO(B) AFI	15–20 A	—	—
		QO(B) CAFI	15–20 A	15–20 A	—
		QO(B) DF	15–20 A	—	—
	EJ	QO(B)	15–70 A	15–125 A	—
	EJ	QO(B) GFI	15–30 A	15–60 A	—
	EJ	QO(B) EPD	15–30 A	15–60 A	—
		QO(B) AFI	15–20 A	—	—
		QO(B) CAFI	15–20 A	15–20 A	—
		QO(B) DF	15–20 A	—	—
	BJ, HJ, JJ	QO(B)	15–70 A	15–125 A	—
		QOB-VH	—	150 A	—
		QO(B) PL	15–30 A	15–60 A	—
		QO(B) GFI	15–30 A	15–60 A	—
		QO(B) EPD	15–30 A	15–60 A	—
		QO(B) AFI	15–20 A	—	—
		QO(B) CAFI	15–20 A	15–20 A	—
		QO(B) DF	15–20 A	—	—
	LJ	QO(B)	15–70 A	15–125 A	—
		QOB-VH	—	150 A	—
		QO(B) GFI	—	15–60 A	—
		QO(B) EPD	—	15–60 A	—
		QO(B) AFI	15–20 A	—	—
		QO(B) CAFI	15–20 A	15–20 A	—
		QO(B) DF	15–20 A	—	—
125,000	HL, JL	QO(B)	15–70 A	15–125 A	—
		QOB-VH	—	150 A	—
		QO(B) PL	15–30 A	15–60 A	—
		QO(B) GFI	15–30 A	15–60 A	—
		QO(B) EPD	15–30 A	15–60 A	—
		QO(B) AFI	15–20 A	—	—
		QO(B) CAFI	15–20 A	15–20 A	—
		QO(B) DF	15–20 A	—	—
200,000	HR, JR	QO(B)	15–70 A	15–125 A	—
		QO(B) GFI	15–30 A	15–60 A	—
		QO(B) EPD	15–30 A	15–60 A	—
		QO(B) AFI	15–20 A	—	—
	HR, JR	QO(B) CAFI	15–20 A	15–20 A	—
	HR, JR	QO(B) DF	15–20 A	—	—

Max. System Voltage AC: 240 1P/2W

Max. Short Circuit Current Rating	Square D Brand Integral or Remote Main Circuit Breakers and Remote Main Fuses	Square D Brand Branch Circuit Breaker Catalog Designation and Allowable Ampere Ranges
Max. Short Circuit Current Rating		Type	1-Pole	2-Pole	3-Pole
25,000	QD, BD, HD, JD, LD	QO(B) H	—	15–100 A	—
42,000	LA, MA	QDL	—	70–225 A	—
65,000	QG, BG, HG, JG, LG	QO(B) H	—	15–100 A	—
100,000	BJ, HJ, JJ, LJ	QO(B) H	—	15–100 A	—
125,000	HL, JL	QO(B) H	—	15–100 A	—

Max. System Voltage AC: 208Y/120 3P/4W

Max. Short Circuit Current Rating	Square D Brand Integral or Remote Main Circuit Breakers and Remote Main Fuses	Square D Brand Branch Circuit Breaker Catalog Designation and Allowable Ampere Ranges
Max. Short Circuit Current Rating		Type	1-Pole	2-Pole	3-Pole
18,000	LA/LH MC	QO(B)	—	—	15–30 A
22,000	QO(B) VH, QOB-VH	QO(B) GFI	—	—	15–50 A
25,000	QD, ED, FD, BD, HD, JD	QO(B) GFI	—	—	15–50 A
25,000	LD	QO(B) GFI	—	—	15–30 A
65,000	QG, EG, BG, HG, JG	QO(B) GFI	—	—	15–50 A
65,000	LG	QO(B) GFI	—	—	15–30 A
100,000	QJ	QO(B)	—	—	15–30 A
		QO(B) VH	—	—	15–100 A
		QOB-VH	—	—	110–150 A
		QO(B) PL	—	—	15–30 A
		QO(B) GFI	—	—	15–50 A
		QO(B) EPD	—	—	15–50 A
		QO(B) EPE	—	—	15–50 A
	EJ, BJ, HJ, JJ	QO(B) GFI	—	—	15–50 A

Max. System Voltage AC: 240/120 3P/4W, 240 3P/3W

Max. Short Circuit Current Rating	Square D Brand Integral or Remote Main Circuit Breakers and Remote Main Fuses	Square D Brand Branch Circuit Breaker Catalog Designation and Allowable Ampere Ranges
Max. Short Circuit Current Rating		Type	1-Pole	2-Pole	3-Pole
22,000	QOB VH QOB-VH	QO(B)	—	—	15–100 A
		QO(B) EPD	—	—	15–50 A
		QO(B) EPE	—	—	15–50 A
25,000	QD	QO(B)	—	—	15–30 A
	QD	QO(B) VH	—	—	15–100 A
		QOB-VH	—	—	110–150 A
		QO(B) PL	—	—	15–30 A
		QO(B) EPD	—	—	15–50 A
		QO(B) EPE	—	—	15–50 A
	ED	QO(B)	—	—	15–100 A
		QO(B) EPD	—	—	15–50 A
		QO(B) EPE	—	—	15–50 A
	BD, HD, JD	QO(B)	—	—	15–100 A
		QOB-VH	—	—	110–150 A
		QO(B) PL	—	—	15–30 A
		QO(B) EPD	—	—	15–50 A
		QO(B) EPE	—	—	15–50 A
	LD	QO(B)	—	—	15–30 A
		QO(B) VH	—	—	15–100 A
		QOB-VH	—	—	110–150 A
		QO(B) EPD	—	—	15–30 A
		QO(B) EPE	—	—	15–30 A
42,000	LA, MA	QDL	—	—	70–225 A
	LA, MA	QO(B) VH	—	—	15–30 A
	MG	QOB-VH	—	—	110–150 A
65,000	QG	QO(B)	—	—	15–30 A
	QG	QO(B) VH	—	—	15–100 A
	QG	QOB-VH	—	—	110–150 A
	QG	QO(B) PL	—	—	15–30 A
	EG	QO(B)	—	—	15–100 A
		QOB-VH	—	—	110–125 A
		QO(B) EPD	—	—	15–50 A
		QO(B) EPE	—	—	15–50 A
	BG, HG, JG	QO(B)	—	—	15–100 A
		QOB-VH	—	—	110–150 A
		QO(B) PL	—	—	15–30 A
		QO(B) EPD	—	—	15–50 A
		QO(B) EPE	—	—	15–50 A
	LG	QO(B)	—	—	15–30 A
		QO(B) VH	—	—	15–100 A
		QOB-VH	—	—	110–150 A
		QO(B) EPD	—	—	15–30 A
		QO(B) EPE	—	—	15–30 A
100,000	EJ	QO(B)	—	—	15–100 A
		QOB-VH	—	—	110–125 A
		QO(B) EPD	—	—	15–50 A
		QO(B) EPE	—	—	15–50 A
	BJ, HJ, JJ	QO(B)	—	—	15–100 A
		QOB-VH	—	—	110–150 A
		QO(B) PL	—	—	15–30 A
		QO(B) EPD	—	—	15–50 A
		QO(B) EPE	—	—	15–50 A
	LJ	QO(B)	—	—	15–30 A
		QO(B) VH	—	—	15–100 A
		QOB-VH	—	—	110–150 A
125,000	HL, JL	QO(B)	—	—	15–100 A
	HL, JL	QOB-VH	—	—	110–150 A
		QO(B) PL	—	—	15–30 A
		QO(B) EPD	—	—	15–50 A
		QO(B) EPE	—	—	15–50 A
200,000	HR, JR	QO(B)	—	—	15–100 A
200,000	HR, JR	QOB-VH	—	—	110–150 A

Max. System Voltage AC: 120/240 1P/3W, 208Y/120 3P/4W, 240/120 3P/3W

Max. Short Circuit Current Rating	Square D Brand Integral or Remote Main Circuit Breakers and Remote Main Fuses	Square D Brand Branch Circuit Breaker Catalog Designation and Allowable Ampere Ranges
Max. Short Circuit Current Rating		Type	1-Pole	2-Pole	3-Pole
42,000	400 A Max. Class T3 Fuses	QO(B) VH	15–70 A	15–125 A	—
65,000	400 A Max. Class J Fuses	QO(B) VH	15–70 A	15–125 A	—
		QO(B) AFI	15–20 A	—	—
		QO(B) CAFI	15–20 A	15–20 A	—
		QO(B) DF	15–20 A	—	—
	400 A Max. Class T6 Fuses	QO(B) VH	15–70 A	15–125 A	—
		QOB-VH	—	150 A	—
		QO(B) AFI	15–20 A	—	—
		QO(B) CAFI	15–20 A	15–20 A	—
		QO(B) DF	15–20 A	—	—
100,000	200 A Max. Class T3 Fuses	QO(B)	15–70 A	15–125 A	—
		QO(B) GFI	15–30 A	15–60 A	—
		QO(B) EPD	15–30 A	15–60 A	—
		QO(B) AFI	15–20 A	—	—
		QO(B) CAFI	15–20 A	15–20 A	—
		QO(B) DF	15–20 A	—	—
200,000	200 A Max. Class T6 or J Fuses	QO(B)	15–70 A	15–125 A	—
		QO(B) GFI	15–30 A	15–60 A	—
		QO(B) EPD	15–30 A	15–60 A	—
	400 A Max. Class T3 Fuses	QO(B)	15–70 A	15–125 A	—
		QO(B) GFI	15–30 A	15–60 A	—
		QO(B) EPD	15–30 A	15–60 A	—

Max. System Voltage AC: 208Y/120 3P/4W

Max. Short Circuit Current Rating	Square D Brand Integral or Remote Main Circuit Breakers and Remote Main Fuses	Square D Brand Branch Circuit Breaker Catalog Designation and Allowable Ampere Ranges
Max. Short Circuit Current Rating		Type	1-Pole	2-Pole	3-Pole
65,000	400 A Max. Class J	QO(B) GFI	—	—	15–50 A
100,000	200 A Max. Class T3	QO(B) GFI	—	—	15–50 A
200,000	200 A Max. Class T6 or J Fuses	QO(B) GFI	—	—	15–50 A
200,000	400 A Max. Class T3 Fuses	QO(B) GFI	—	—	15–50 A

Max. System Voltage AC: 240/120 3P/4W, 240 3P/3W

Max. Short Circuit Current Rating	Square D Brand Integral or Remote Main Circuit Breakers and Remote Main Fuses	Square D Brand Branch Circuit Breaker Catalog Designation and Allowable Ampere Ranges
Max. Short Circuit Current Rating		Type	1-Pole	2-Pole	3-Pole
50,000	600 A Max. Class T3 Fuses	QO(B) VH	—	—	15–30 A
65,000	400 A Max. Class J Fuses	QO(B) VH	—	—	15–100 A
	400 A Max. Class T6 Fuses	QO(B) VH	—	—	15–100 A
	400 A Max. Class T6 Fuses	QOB-VH	—	—	110–150 A
100,000	200 A Max. Class T3 Fuses	QO(B)	—	—	15–100 A
		QO(B) EPD	—	—	15–50 A
		QO(B) EPE	—	—	15–50 A
200,000	200 A Max. Class T6 or J Fuses	QO(B)	—	—	15–100 A
		QO(B) EPD	—	—	15–50 A
		QO(B) EPE	—	—	15–50 A
	400 A Max. Class T3 Fuses	QO(B)	—	—	15–100 A
		QO(B) EPD	—	—	15–50 A
		QO(B) EPE	—	—	15–50 A

NQ Panel Mission Critical Breaker Selectivity

Maximum SCCR (RMS Symmetrical)	Integral or Remote Main Circuit Breakers	Branch Circuit Breakers
Maximum SCCR (RMS Symmetrical)	Integral or Remote Main Circuit Breakers	Type*	1-Pole	2-Pole	3-Pole
Fully Rated and Selective to 10 kA at 208Y/120 Vac or at 240/120 Vac	J-W, 250 A L-W, 250 A	QOB	10–70	10–125	10–125
		QOB-H
		QOB-VH
		QH
Series Rated and Selective to 12 kA at 208Y/120 Vac or at 240/120 Vac	J-W, 250 A	QOB	10–70	10–125	10–60
		QOB-H
		QOB-VH
		QH
Series Rated and Selective to 15 kA at 208Y/120 Vac or at 240/120 Vac	J-W, 250 A	QOB	10–60	10–60	10–30
		QOB-H
		QOB-VH
		QH
Series Rated and Selective to 18 kA at 208Y/120 Vac or at 240/120 Vac	J-W, 250 A	QOB	10–30	10–30	—
		QOB-H
		QOB-VH
		QH
	L-W, 250 A	QOB	10–60	10–60	10–60
		QOB-H
		QOB-VH
		QH
Series Rated and Selective to 30 kA at 208Y/120 Vac or at 240/120 Vac	L-W, 400 A L-W, 600 A	QOB	15–70	15–150	15–150
		QOB-H
		QOB-VH
		QH

Short Circuit Current Rating* for Main Lug Interiors with Sub-Feed or Feed-Through Lugs

Maximum System Voltage AC	Maximum Current Rating	Branch Circuits*	Application	Adder*	Maximum Short Circuit Current Rating*
240	100	18, 30	SFL and FTL	—	10,000
	225	30, 42, 54, 72, 84, 96	SFL	6 in. (152.4 mm)
		42	FTL	—
		30, 54, 72, 84, 96	FTL	6 in. (152.4 mm)
	400	30, 42, 54, 72, 84	SFL	—	25,000
		96	SFL	—	10,000
		30, 84	FTL	—	25,000
		96		—	10,000
		42, 54, 72		6 in. (152.4 mm)	25,000
	600	30, 42, 54, 72, 84	FTL	12 in. (304.8 mm)	25,000
	600	96	FTL	12 in. (304.8 mm)	10,000

CE Marking

Interiors with the “CE” mark meet the IEC 61439-1 and IEC 61439-2 standards.
Main lug interiors with the “CE” mark have been tested to withstand 10,000 RMS symmetrical amperes for 30 cycles.
Interiors with the “CE” mark are only approved for use with QOXD or QOBXD branch circuit breakers which carry the “CE” mark.

QO2150VH, QO2175VH and QO2200VH Restrictions

NOTICE
HAZARD OF EQUIPMENT DAMAGE Do not install QO2150(VH), QO2175(VH) or QO2200(VH) in seismic applications. Do not install QO2150(VH), QO2175(VH) or QO2200(VH) in three phase system applications. Do not install more than a total of four QO2175(VH) or QO2200(VH) on NEMA 1 enclosures. Do not install more than one QO2175(VH) or QO2200(VH) in NEMA 3R Vented Weatherproof enclosures. Do not install QO2150(VH), QO2175(VH) or QO2200(VH) adjacent to each other. Do not install in un-vented weatherproof enclosures (3R/5/12, 4/4X). For QO2175(VH) and QO2200(VH) circuit breakers install three-point latch trims. Failure to follow these instructions can result in equipment damage.

NOTICE

HAZARD OF EQUIPMENT DAMAGE

Do not install QO2150(VH), QO2175(VH) or QO2200(VH) in seismic applications.
Do not install QO2150(VH), QO2175(VH) or QO2200(VH) in three phase system applications.
Do not install more than a total of four QO2175(VH) or QO2200(VH) on NEMA 1 enclosures.
Do not install more than one QO2175(VH) or QO2200(VH) in NEMA 3R Vented Weatherproof enclosures.
Do not install QO2150(VH), QO2175(VH) or QO2200(VH) adjacent to each other.
Do not install in un-vented weatherproof enclosures (3R/5/12, 4/4X).
For QO2175(VH) and QO2200(VH) circuit breakers install three-point latch trims.

Failure to follow these instructions can result in equipment damage.

Leave at least four circuit spaces of blank fillers or circuit breakers of 125 A or lower before another QO2150(VH), QO2175(VH) or QO2200(VH) is installed.

Place QO2150(VH), QO2175(VH) and QO2200(VH) next to line end, on the right side for top incoming applications.

Place QO2150(VH), QO2175(VH) and QO2200(VH) next to line end, on the left side for bottom incoming applications.

QO2150(VH), QO2175(VH) and QO2200(VH) for single phase applications only.

Three-Point Latch Trim Fronts—Catalog Number*

Type	Surface Mounted	Flush Mounted
Standard	NC50VS3P	NC50VF3P
	NC56VS3P	NC50VF3P
	NC62VS3P	NC62VF3P
	NC68VS3P	NC68VF3P
	NC74VS3P	NC74VF3P
	NC80VS3P	NC80VF3P
	NC86VS3P	NC86VF3P
	NC92VS3P	NC92VF3P
Hinged	NC62VS3PHR	NC62VF3PHR
	NC68VS3PHR	NC68VF3PHR
	NC74VS3PHR	NC74VF3PHR
	NC80VS3PHR	NC80VF3PHR
	NC86VS3PHR	NC86VF3PHR
	NC92VS3PHR	NC92VF3PHR

Appendix 1: Specifications

Typical Wiring

Panelboard Typical Wiring Additional information is provided on the panelboard. See the main circuit breaker rating, if used.*

Integral Main or Sub-Feed: DJ, FI, KI, H, J, LA, LC, LH, QB, QD, QG, QJ, QO(B)VH

NQ/NQM 100–225 A Main Lugs or 100–250 A Main Circuit Breaker Diagram

NQ Panelboard or QONQ Load Center 400–600 A Main Lugs or Main Circuit Breaker with or without Feed-Through Lugs Diagram

NQ Panelboard or QONQ Load Center 400–600 A Main Circuit Breaker with Feed-Through Lugs or Sub-Feed Circuit Breakers

Typical NQ Panelboard with Split Bus Diagram

Panelboard Ratings

Max. System Voltage AC: 120/240 1P/3W, 208Y/120 3P/4W, 240/120 3P/4W

Max. System Voltage AC: 240 1P/2W

Max. System Voltage AC: 208Y/120 3P/4W

Max. System Voltage AC: 240/120 3P/4W, 240 3P/3W

Max. System Voltage AC: 120/240 1P/3W, 208Y/120 3P/4W, 240/120 3P/3W

Max. System Voltage AC: 208Y/120 3P/4W

Max. System Voltage AC: 240/120 3P/4W, 240 3P/3W

NQ Panel Mission Critical Breaker Selectivity

CE Marking

QO2150VH, QO2175VH and QO2200VH Restrictions

Three-Point Latch Trim Fronts—Catalog NumberV=Vented, HR=Hinged Right, 3P=Three Point*

Three-Point Latch Trim Front

Panelboard Typical Wiring*

Three-Point Latch Trim Fronts—Catalog Number*