Square D Digest 179

Single Row (Column Width) NF and NQ Panelboards

NQ Single-Row Panelboards—240 Vac Bolt-on

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Refer to Catalog 1670CT0701

(60 A Max. Branch Circuit Breaker) NQ Application Data Application: For use on ac only. Meet Federal Specification W-P-115c, Type 1, Class 1. ULListed. Service: 1Ø3W, 3Ø3W, 3Ø4W, 3 Grd. “B” Ø—240 Vac max. AIR: See the QOB(VH) circuit breaker tables in Section 9. Mains: Type NQ—Bolt-on main lugs: 100 A, 225 A • Main circuit breaker: 100 A—QOU, 225 A—QB • See the tables in Section 7 for main circuit breaker interrupt ratings. See catalog for terminal lug data. • Main circuit breakers with higher interrupt ratings are available as factory assembled panelboards. Branches: Bolt-on QOB, 60 A maximum. QOB 10-60 A 1-, 2- and 3-pole. See QOB Circuit Breakers for NQ Panelboards, page 9-11 and NQ Factory Assembled Panelboards, page 9-14 for branch circuit breaker terminal data. QOB-VH and QHB branch circuit breakers are also available as factory assembled. Cabinet: Front—Screw cover. Box—galvanized steel with removable endwalls. Gutters:

9 PANELBOARDS

• 100 A—4 in. min. mains end, 3 in. min. opposite mains • 225 A—10 in. min. mains end, 5 in. min. opposite mains Table 9.86: NQ Single-Row (Column-width)—240 Vac Bolt-on [1] Max. Box and Interior with Solid Neutral (8.625 in. W. x 5 in. D.) (Order branch circuit breakers separately) Mains Rating

Front (Surface Mount) Catalog Number

No. of Poles

Catalog Number

Box Height (In.)

1 Phase 3-Wire Main Lugs Only 30 225 Main Circuit Breaker—2-pole 20 100 3 Phase 4-Wire Main Lugs Only 30 100 Main Circuit Breaker—3-pole 30 100 42 225

NQ830L2C

45

LX45TS

NQ820B1C

40

LX40TS

NQ8430L1C NQ8442L2C

40 58 45 62

LX40TS LX58TS LX45TS LX62TS

NQ8430B1C NQ8442B2C

42

225

Table 9.87: Cable Troughs and Pull Boxes Cable Troughs (L=Length) [2]

Pull Boxes with Solid Neutral

L (In.)

8.625 in. x 5 in. Catalog Number

S/N Terminals

Catalog Number

36 48 56 66

MTX836 MTX848 MTX856 MTX866

42

MPX81542

60 A Maximum Branch—Copper Bus Standard. Cable troughs are standard with a trough barrier.

[1] [2]

9-36

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