SE Digest 178

Panelboards

Panelboard Series Ratings

Refer to I-Line Panelboards

www.se.com/us

Table 9.4: Fuse/I-Line Circuit Breaker Series Connected Ratings Maximum System VoltageAC [22] Maximum Short Circuit Current Rating Remote Main Fuse

Square D Brand Branch Circuit Breaker Catalog Designation (2- or 3-Pole) Unless Otherwise Stated

MaxA 1200A

Class

L, T (300V)

100,000

T (600V)

QD,QG

120/240 1Ø 208Y/120

800A 600A

J,RK5

L, T (300V)

1200A

65,000

T (600V)

QD

800A 600A

J,RK5

L, T (300V)

1200A

QD, QG (2-Pole)

T (600V)

800A

J,RK5 J, T (600V)

FA, FH, KA, KH, KC, LA, LH, MA, MH, MX, PG

600A

FH, KA, KH, LA, LH, MA, MH, MX, PG, HD, HG, HJ, HL, JD, JG, JJ, JL

RK5

100,000

HD, HG, HJ, HL, JD, JG, JJ, JL

J

T (600V) T (300V)

FH, KA, KH, LA, LH, MA, MH, MX, PG

800A

PG

240

FH, KA, KH, LA, LH, MA, MH, MX, PG FH, KH, LA, LH, MA, MH, MX, PG

L L

1200A

T (600V)

HD, HG, HJ, HL, JD, JG, JJ, JL

J, T (600V)

FA (3-pole only) FH, FC, KH, KC, LA, LH, LC, MA, MH, MX, NA, NC, NX, PG, PJ, PL FH, FC, HD, HG, HJ, HL, JD, JG, JJ, JL, KH, KC, LA, LH, LC, MA, MH, MX, NC, NX, PG,PJ, PL

9 PANELBOARDS

600A

RK5

HD, HG, HJ, HL, JD, JG, JJ, JL

J

T (600V) T (300V)

FH, FC, KA, KH, KC, LA, LH, LC, MA, MH, MX, NA, NC, NX, PG, PJ, PL

200,000

PG, PJ, PL

800A

FH, FC, KH, KC, LA, LH, LC, MA, MH, MX, NA, NC, NX, PG, PJ, PL

L L

FC, KH, KC, LC, MA, MH, MX, NA, NC, NX, PG, PJ, PL

1200A

T (600V) J, T(600V)

HD, HG, HJ, HL, JD, JG, JJ, JL HD, HG, HJ, HL, JD, JG, JJ, JL

400A 600A

J,RK5

HJ, HL, JJ, JL

J, T (600V)

FC, KA, KH, KC, LA, LH, LC, MA, MH, MX, NA, PG, PJ FC, KA, KH, KC, LA, LH, LC, MA, MH, MX, NA, PG, PJ FC, KA, KH, KC, LA, LH, LC, MA, MH, MX, NA, PG, PJ FC, KH, KC, LA, LH, LC, MA, MH, MX, NA, PG, PJ

600A

100,000

RK5

L, T(600V)

800A

L

1200A

T (600V)

HJ, HL, JJ, JL

HJ,HL

200A

RK5

FA, FH, FC, HJ, HL, JJ, JL, KA, KH, KC, LA, LH, LC, MA, MH, MX, NA, NC, NX, PG, PJ, PL FA, FH, FC, HJ, HL, JJ, JL, KA, KH, KC, LA, LH, MA, MH, MX, NA, NC, NX FC, KA, KH, KC, LA, LH, LC, MA, MH, MX, MG, MJ, NA, NC, NX, PG, PJ, PL

480

J

400A

T (600V)

J

T(600V)

KA, KH, KC, LA, LH, MA, MH, MX, NA, NC, NX KC, LA, LH, LC, MA, MH, MX, MG, MJ, NC, NX, PG, PJ

600A

200,000

RK5

T(300V) T(600V)

PG, PJ, PL

KA, KH, KC, LA, LH, MA, MH, MX, MG, MJ, NA, NC, NX, PG, PJ, PL

800A

KC, LA, LH, LC, MA, MH, MX, NA, NC, NX, PG, PJ, PL KC, LC, MA, MH, MX, MG, MJ, NA, NC, NX, PG, PJ, PL

L L

1200A

HG, JG (Molded Case Switches) HD, HG, HJ, HL, JD, JG, JJ, JL

30A

CC

100,000

600

200A 400A

J

J, T (600V) HJ, HL, JJ, JL • The fuse used in this UL test is an envelope (umbrella) fuse. This fuse is designed as a “worst case’’ fuse. Thus, no matter what manufacturer’s fuse is used, the Square D™ brand circuit breaker is protected. • The line side fused switch may be in a separate enclosure or in the same enclosure as the loadside breaker. A line side fused switch may be a submain, integral main, or remote main. A load side breaker may be a branch, submain, or an integral main used on the load side of a remote main. This series combination short circuit current rating shall not exceed that of the line side fused switch. The charts apply to Square D™ brand load side breakers only. However, the line side fuse ratings are independent of the fuse manufacturer. • Not applicable to Corner Grounded Systems. • Limiters used in Square D™ brand DSL and DSL II fused power circuit breakers are not class L fuses and do not have series ratings.

[22] For indicated circuit breakers rated less than this maximum voltage. The indicated short circuit current rating also applies, but at the voltage rating of the circuit breaker. © 2021 Schneider Electric All Rights Reserved 6/20/2021

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