Interiors

• Will accept plug-on or bolt-on branch circuit breakers

• Top- or bottom-feed

• 65k AIR maximum branch circuit breakers (fully-rated)

• 200k AIR maximum when supplied by PowerPacT^™ circuit breaker or remote Class J or T fuse (series rated)

• Field-installable sub-feed lug kits for 100–400 A interiors

• Factory installed main lugs on all interiors

• 225–600 A main lug interiors are convertible to main circuit breaker by adding a main circuit breaker and adapter kit

• Available with silver/tin-plated copper or tin-plated aluminum bus (aluminum is standard). Tin-plated or thick silver plated copper bus are available options. Branch connector fingers are tin-plated copper; thick silver-plated branch connector fingers are optional

Main Lugs Interior with PowerPacT Q Main Circuit Breaker and Main Circuit Breaker Kit

• May be assembled from merchandised main lug interiors, main circuit breaker, and main circuit breaker kits.

• Will accept plug-on or bolt-on branch circuit breakers.

• Merchandised main circuit breaker interiors are suitable for use as service entrance (US only).

• Barriers must be installed in jurisdictions that have adopted 2017 NFPA
  70—National Electric Code^® (NEC^®).

  UL Service Entrance Barrier Kits

  Catalog NumberMain circuit breaker panels are supplied with UL service entrance barriers if "UL Service Entrance" is selected as a requirement in SE Advantage.*	Description	Applicable Main Breakers
  HJQLLC	H/J/Q Line Lug Cover	PowerPacT H, J, Q
  LALLC	LA/LH Line Lug Cover	LA/LH
  PPLLC	PowerPacT L Line Lug Cover	PowerPacT L

• Service entrance barriers are required and available in Canada (factory-assembled only).

• May be top-feed or bottom-feed.

• Accept 65k AIR maximum branch circuit breakers (fully-rated).

• May be series rated 200k AIR maximum when supplied by PowerPacT circuit breaker.

• Are available with silver/tin plated copper or tin-plated aluminum bus (aluminum is standard). Tin-plated or silver-plated copper bus is available as an option. Branch connector fingers are tin-plated copper; silver-plated branch connector fingers are optional.

• 100 A main circuit breaker interiors may be assembled from a standard or 14” wide 100 A main lug interior, and either

  • an appropriate QOB or QOB-VH main circuit breaker in a branch spaces, or

  • a PowerPacT H-frame vertical main breaker, and a main breaker kit (NQMB2HJ), or (NQMB2HJ14 for NQ 14" wide interiors).

• 110–150 A main circuit breaker panelboards may be assembled with backfed main breaker from:

  • A standard 225 A main lug interior.

  • Appropriate QOB-VH frame circuit breaker installed in branch spaces.

• 110–225 A main circuit breaker panelboards may be assembled with a vertical main breaker from:

  • A standard or 14” wide 225 A main lug interior.

  • Main circuit breaker adaptor kit (NQMB2Q, NQMB2HJ) (or NQMB2Q14 or NQMB2HJ14 for 14" interiors).

  • Appropriate PowerPacT H-, J-, or Q-frame circuit breaker

• 250 A main circuit breaker interiors are factory-assembled only.

• Merchandised 250 to 400 A main circuit breaker interiors consist of:

  • 400 A 3-phase or single phase main lug interior.

  • Main circuit breaker adapter kit (Catalog No. NQMB4LA or NQMB6PPL).

  • Appropriate LA or LH (with NQMB4LA) or LG, LJ, or LL (with NQMB6PPL) circuit breaker.PowerPacT L-frame main breakers require a 8.75 in. (222 mm) deep NEMA Type 1 enclosure. They are only available factory assembled with 26" (660 mm) wide, 8.75" (222 mm) deep NEMA 3R enclosures.*

• Factory assembled 400 A main circuit breakers are available with LA, LH, or PowerPacT LPowerPacT L-frame main breakers require a 8.75 in. (222 mm) deep NEMA Type 1 enclosure. They are only available factory assembled with 26" (660 mm) wide, 8.75" (222 mm) deep NEMA 3R enclosures.* main circuit breakers.

• Merchandised 600 A main circuit breaker interiors consist of:

  • 600 A 3-phase or single phase main lug interior.

  • Main circuit breaker adapter kit (Catalog No. NQMB6PPL ).

  • Appropriate PowerPacT L (LG, LJ, or LL) circuit breaker.PowerPacT L-frame main breakers require a 8.75 in. (222 mm) deep NEMA Type 1 enclosure. They are only available factory assembled with 26" (660 mm) wide, 8.75" (222 mm) deep NEMA 3R enclosures.*

• Factory assembled 600 A main circuit breakers are available with PowerPacT L (LG, LJ, or LL) main circuit breakers.

Field-Installable Circuit Breaker Accessories

Field-installable shunt trip, alarm switch, and other accessories are available for PowerPacT H, J, L and LA/LH main circuit breakers. Refer to Catalog 0616CT1001 or 0601CT9101 for additional information.

Sub-Feed Lug Kits

Field-Installable Sub-Feed Lugs

Field Installable Sub-Feed Circuit Breaker Kits

Factory-Installed Sub-Feed and Feed-Through Options

• Feed-through lugs are available on standard width 1Ø or 3Ø, 100–600 A interiors (main lug interiors only).

• Sub-feed lugs are available on 1Ø or 3Ø, 100–400 A main lug interiors only.

• Sub-feed circuit breakers

  • Available on 1Ø or 3Ø, main lugs 225–600 A interiors (main lug or main breaker)

  • One PowerPacT H-, J-, or Q-frame sub-feed circuit breaker for each 225 A panelboard

  • One 400–600 A max., or two 250 A max. sub-feed circuit breakers for each 400–600 A panelboard

    • Sub-feed circuit breakers may be LA/LH, or PowerPacT H-, J-, L-, or
      Q-frame.

• Factory-installed IP2X barriers for NQ Panelboards reduce the risk of accidental contact with energized components if a cover is removed.

• Plastic barriers cover Mains (lugs or circuit breaker), copper bus, and branch circuit breakers, providing IP2X per IEC 60529 protection for undergrounded parts.

• Available in 3 phase interiors with main lugs up to 400 A. Main circuit breaker choices include PowerPacT Q-, H-, J- or LA/LH frame.

• Series rated up to 200 kAIC—fully rated up to 65 kA.

• Selectively coordinated up to 30 kAIC.

• All standard NEMA 1, 2, 3R, 4/4X, 5, or 12 enclosures available up to 225 A. Higher ampacity panels are supplied with NEMA 1 enclosures.

• Branch circuit breakers available to 100 A in 1P, 2P, and 3P.

• Two factory assembled constructions:

  • Standard design that offers maximum flexibility, including interiors with
    18–84 circuits, and sub-feed lugs up to 225 A.

  • Enhanced design that retains IP2X per IEC 60529 protection whether or not a branch circuit breaker is installed.

    • Enhanced IP2X three phase, 42 circuit interiors are available with copper bus rated for 225 A or 400 A.

For more information please reference Document Number 1640BR1701.