Appendix 1: Specifications

Typical Wiring

NOTE: Do not use on 600 or 480 V, 3-phase 3-wire delta systems.

Panelboard Typical Wiring *

Voltage AC	1-Phase Panelboards		3-Phase Panelboards
Voltage AC	Phase	Wires	Phase	Wires
600Y/347	1	3	3	4
480Y/277	1	3	3	4
208Y/120	1	3	3	4
120/240	1	3	—	—
240*	1	2	3	3
240	1	3	—	—
240/120*	—	—	3	4 Delta

Integral Main or Sub-Feed (FI, KI, H, J, LA, LC, LH, EDB, EGB, EJB)

NF/NFOM 125–250 A Main Lugs or Main Circuit Breaker Diagram

NF 400–800 A Main Lugs or Main Circuit Breaker with or without Feed-Through Lugs Diagram

NF 400–800 A Main Circuit Breaker with Feed-Through Lugs or Sub-Feed Circuit Breakers Diagram

Typical NF 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.

NOTE: 125 A ED/EG/EJ circuit breakers are 480Y/277 Vac maximum only.

Series Connected Circuit Breaker Ratings (RMS Symmetrical)

Short circuit tests are conducted at 100-105% of the maximum rated voltage of the panelboard.
EDB-EPD, EGB-EPD and EJB-EPD suitable for 480Y/277Vac or 277 Vac only.

Max. System Voltage AC: 120, 120/240, 240

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		Circuit Breaker Abbreviation	1-Pole	2-Pole	3-Pole
65,000	EG, BG, HG, JG, LG, LH, MH	EDB	15–70 A	15–125 A	15–125 A
65,000	EG	ECB-G3	15–30 A	15–30 A	15–30 A
100,000	EJ, BJ, HJ, JJ, LJ	EDB, EGB	15–70 A	15–125 A	15–125 A
100,000	EJ, BJ, HJ, JJ	ECB-G3	15–30 A	15–30 A	15–30 A
125,000	HL, JL	EDB, EGB, EJB	15–70 A	15–125 A	15–125 A
125,000	HL, JL	ECB-G3	15–30 A	15–30 A	15–30 A
200,000	HR, JR, LR	EDB, EGB, EJB	15–70 A	15–125 A	15–125 A
	HR, JR	ECB-G3	15–30 A	15–30 A	15–30 A
	Class J or T (600 V) 200 A Max Fuses	ECB-G3	15–30 A	15–30 A	15–30 A

Max. System Voltage AC: 277, 480/277

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		Circuit Breaker Abbreviation	1-Pole	2-Pole	3-Pole
35,000	EG, BG, HG, JG, LG, LH	EDB	15–70 A	15–125 A	15–125 A
	EG, BG, HG, JG, LG, LH	EDB-EPD	15–50 A	—	—
	EG, BG, HG, JG	ECB-G3	15–30 A	15–30 A	15–20 A
65,000	EJ, BJ, HJ, JJ, LJ	EDB, EGB	15–70 A	15–125 A	15–125 A
	EJ, BJ, HJ, JJ, LJ, LL	EDB-EPD, EGB-EPD	15–50 A	—	—
	EJ, BJ, HJ, JJ	ECB-G3	15–30 A	15–30 A	15–20 A
100,000	HL, JL, LL, DL	EDB, EGB, EJB	15–70 A	15–125 A	15–125 A
	HL, JL, LL	EDB-EPD, EGB-EPD, EJB-EPD	15–50 A	—	—
	Class J or T (600 V) 400 A Max Fuses	EDB, EGB, EJB	15–70 A	15–125 A	15–125 A
	Class J or T (600 V) 400 A Max Fuses	EDB-EPD, EGB-EPD, EJB-EPD	15–50 A	—	—
200,000	HR, JR, LR	EDB, EGB, EJB	15–70 A	15–125 A	15–125 A
	HR, JR, LR	EDB-EPD, EGB-EPD, EJB-EPD	15–50 A	—	—
	HR, JR	ECB-G3	15–30 A	15–30 A	15–20 A
	Class J or T (600 V) 200 A Max Fuses	EDB, EGB, EJB	15–70 A	15–125 A	15–125 A
	Class J or T (600 V) 200 A Max Fuses	EDB-EPD, EGB-EPD, EJB-EPD	15–50 A	—	—
	Class J or T (600 V) 200 A Max Fuses	ECB-G3	15–30 A	15–30 A	15–20 A

Max. System Voltage AC: 347, 600Y/347

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		Circuit Breaker Abbreviation	1-Pole	2-Pole	3-Pole
18,000	HG, BG, JG, LG	EDB	15–70 A	15–100 A	15–100 A
25,000	EJ, BJ, HJ, JJ, LJ, LH	EDB, EGB	15–70 A	15–100 A	15–100 A
35,000	LC, LE, LX	EDB, EGB, EJB	15–70 A	15–100 A	15–100 A
65,000	HR, JR	EDB, EGB, EJB	15–70 A	15–100 A	15–100 A
65,000	LR	EJB	15–70 A	15–100 A	15–100 A
200,000	Class J or T (600 V) 200 A Max Fuses	EDB, EGB, EJB	15–70 A	15–100 A	15–100 A

NF 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	TypeIncluding EPD circuit breakers.*	1-Pole	2-Pole	3-Pole
Series Rated and Selective to 18 kA at 240 Vac	J-W, 250 A	ED, EG, EJ	15–70	15–125	15–125
Series Rated and Selective to 7 kA at 480Y/277 Vac	J-W, 250 A	ED, EG, EJ	15–70	70–125	70–125
Series Rated and Selective to 10 kA at 480Y/277 Vac	J-W, 250 A	ED, EG, EJ	15–60	15–60	15–60
Series Rated and Selective to 30 kA at 480Y/277 Vac or at 240 Vac	L-W, 250 A L-W, 400 A L-W, 600 A	ED, EG, EJ	15–70	15–125	15–125

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

Main lug interiors equipped with sub-feed or feed-through lugs, where the device feeding the interior is unknown or not a Square D brand device, are rated to 25,000 RMS symmetrical amperes at 600Y/347 Vac maximum for three cycles. Use of one of the Square D brand circuit breakers of the correct ampere rating, listed as main circuit breakers in Integral Main or Sub-Feed (FI, KI, H, J, LA, LC, LH, EDB, EGB, EJB), ahead of these lugs will result in a rating equal to that of the circuit breaker.

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 must be used with ED circuit breakers that have been tested to IEC standards. This limits the circuit breakers used to the single pole EDB circuit breaker (see Digest for details).
Main circuit breaker interiors with the “CE” mark are limited to a maximum short circuit rating equal to the IEC rating of the main circuit breaker (see Digest for details). Main circuit breakers must be series rated with the EDB single pole circuit breakers.

Three-Point Latch Trim Front for NF Panelboard

NOTICE
HAZARD OF EQUIPMENT DAMAGE For PowerPacT L-, M- and P-Frame Circuit Breakers install three-point latch trims. Failure to follow these instructions can result in equipment damage.

Three-Point Latch Trims—Catalog Number *

Type	Surface Mounted	Flush Mounted
Standard	NC62VS3PNF	NC62VF3PNF
	NC68VS3PNF	NC68VF3PNF
	NC74VS3PNF	NC74VF3PNF
	NC80VS3PNF	NC80VF3PNF
	NC86VS3PNF	NC86VF3PNF
	NC92VS3PNF	NC92VF3PNF
Hinged	NC62VS3PNFHR	NC62VF3PNFHR
	NC68VS3PNFHR	NC68VF3PNFHR
	NC74VS3PNFHR	NC74VF3PNFHR
	NC80VS3PNFHR	NC80VF3PNFHR
	NC86VS3PNFHR	NC86VF3PNFHR
	NC92VS3PNFHR	NC92VF3PNFHR