Specification
2700DB0202R03/12 Corner-Grounded Delta (Grounded B Phase) Systems
09/2012 Unassembled and Assembled Equipment
© 2002–2012 Schneider Electric All Rights Reserved
7
ENGLISH
Unassembled and Assembled
Equipment
Panelboards
QMB Panelboards QMB panelboards are UL Listed for use on 240 or 480 Vac grounded B
phase systems with appropriately rated switches installed.
I-Line™
Circuit Breaker Panelboards, 240 Vac I-Line panelboards are UL Listed to indicate a 3Ø3W, 240 Vac grounded
B phase rating with appropriately rated circuit breakers installed (see
Table 5 on page 6 for 240 Vac circuit breakers).
I-Line Circuit Breaker Panelboards, 480 Vac I-Line panelboards are UL Listed for use on 480 Vac grounded B phase
systems with the appropriately rated circuit breakers installed when using
the B phase as grounded.
NQOD and NF Circuit Breaker Panelboards NQOD and NF panelboards are UL Listed and can be used on 3Ø3W,
240 Vac grounded B phase systems with rated main circuit breakers
installed (see Table 7 below).
Table 6: 480 Vac UL Listed Grounded B Phase Interrupting Ratings
Catalog
Number Prefix
No. of
Poles
Ampere Rating
UL Listed 480 Vac Grounded
B Phase RMS Sym. Amperes
Footnotes
HD, HG, HJ, HL
3
15–150
18,000 / 35,000 / 65,000 / 100,000
1, 2
1
3.0, 5.0, 3.0A, 5.0A, 6.0A, 5.0P, 6.0P, 5.0H, and 6.0H Micrologic trip system.
2
The grounded phases should be connected to the center pole only.
JD, JG, JJ, JL 150–250
1, 2
FH, FHL 15–100 10,000
2
LH, LHL 125–400 14,000
2
LD, LG, LJ, LL 250-600 18,000 / 35,000 / 65,000 / 100,000
1, 2
MG, MJ 300–800 35,000
2, 3
3
ET1.01 electronic trip system.
PG, PK
250-1200
35,000 / 50,000
1, 2, 3
PJ, PL 65,000 / 100,000
1, 2, 3
RG, RJ, RK, RL 600-2500 35,000 / 65,000 / 65,000 / 100,000
1, 2, 3
NT 800-1200 100,000
1, 2
NW 800-6000 150,000
1, 2
Table 7: NQ and NF Circuit Breaker Panelboards
Main Circuit Breaker Type
240 Vac Grounded B-Phase Rated
NQ NF
QB, QD, QG, QJ Yes No
EDB, EGB, EJB No
YesHD, HG, HJ, HL
Yes
JD, JG, JJ, JL
FH No
LH
Yes
Main Lugs Only
NOTE: Branches for NF include EDB, EGB, and EJB. Branches for NQ include QO-H and
QOB-H.