NF Panelboards

Commonly used for feeding 277V fluorescent lighting or small motor loads.

The NF lighting and power distribution panelboard offers a wide selection of circuit breakers, accessories, and ready-to-install kits, as well as 200% rated neutrals for non-linear loads.

Standard panelboard features

  • 480Y/277Vac maximum
  • 600 Amp maximum main circuit breaker or main lugs
  • 18K thru 200K SCCR
  • Fully rated 480Y/277 Volts, 18K/35K/65K AIR
  • Main and sub-feed circuit breakers are hard bussed and vertically mounted
  • 125 Amp maximum branch mounted circuit breakers
  • Interiors are field convertible to top or bottom feed
  • Modular construction to accept field installable sub-feed lugs, thru-feed lugs, and sub-feed breakers
  • Circuit breakers are HACR, SWD, and HID rated
  • Ready-to-install main circuit breaker kits convert main lug interiors
  • VISI-TRIP® indication on branch circuit breakers
  • Suitable for use as service equipment
  • Complete line of UL Listed interiors with 200% rated neutrals for non-linear loads

800 A NF Main Lug Panelboards and 400 A Sub Feed Circuit Breakers

  • Fully assembled 800 A version of NF main lug panelboards
  • NEMA 1 , 3R, 5 and 12 enclosures
  • 400 A sub-feed CB capability available for 600 A and 800 A NF panelboards
  • 600 A and 800 A MLO panelboards (one 400 A LA or LH sub-feed CB may be used with one 250 A KA or KH CB
  • 400 A LC sub-feed CB (250 A KC sub-feed CB cannot be combined with the LC)

Column-width panelboards are designed to fit into a standard size W, H, or I-beam support column in industrial plants

Column-width panelboard features

  • 240Vac maximum or 480Y/277Vac maximum
  • Copper bus standard
  • 225 Amp maximum main circuit breaker or main lugs
  • 60 Amp maximum branch circuit breaker
  • Suitable for use as service equipment when using main circuit breaker with 30 or 42 circuits
  • Top or bottom feed interiors
  • Accepts plug-on or bolt-on branch circuit breakers
  • Solid neutral located on same end as mains
Square D logo

For a complete listing of documentation for this product, please consult the Technical Library.

Brochures
NQ, NF, I-Line® and QMB Panelboard Products 0120BR9202
Catalogs
NF Circuit Breaker Panelboards 1670CT0701
REPLACEMENT PARTS: NF Panelboards, Main Lugs and Main Circuit Breaker 1670SB9601
Data Bulletins
Corner-Grounded Delta (Grounded B Phase) Systems 2700DB0202
National Electrical Code® (NEC® ) 2008: Removal of 42 Circuit Limitation for Lighting and Appliance Panelboards 1600DB0701
NF Column Width Lighting Panelboards 1670DB9901
NF Lighting Panelboard: Series 0 to E1 Lighting Panelboard 1670DB0801
Panelboard Driphood Kit 80043-401-03
Replacement Parts for NF Panelboards 1670DB0802
Switchboard/Panelboard Short-Circuit Current Ratings 2700DB9901
declarations
Manufacturer's Declaration of Conformity
Type NF, NQOD, NQCE, QON Panelboard Interior Assemblies
drawings
MPS NF 250A Max. Main Lugs Interior (Stacked) 250A MLO 30, 42 ckts PBA566
MPS NF 400 - 600A Main Lugs Interior (Full Height) 400-600A MLO 30, 42, 54 ckts PBA572
NF 100A/250A VERT MCB TYPE 1 PBA553
NF 100A/250A VERT MCB TYPE 1 HINGED PBA553HR
NF 125A BACKFED MCB TYPE 1 PBA552
NF 125A BACKFED MCB TYPE 1 TVSS PBA552T
NF 125A BF MCB TYPE 1 HINGED PBA552HR
NF 125A/250A MLO TYPE 1 TVSS PBA550T
NF 125A/250A VERT MCB TYPE 1 SPD PBA553T
NF 400/600 AMP CPS TYPE 1 PBA551_FR
NF 400/600A MCB Type 1 PBA554
NF 400A/600A MLO TYPE 1 TVSS PBA551T
NF 800A MLO TYPE 1 TVSS PBA558T
NF MB Panelboards 400-600 Amp Hinged Trim Type 1 PBA554HR
NF MLO 400/600 AMP TYPE 1 PBA551_EN
NF MLO PANELBOARD 400/600 AMP TYPE 1 PBA551
NF MLO Panelboards 400-600 Amp Hinged Trim Type 1 PBA551HR
NF MLO Panelboards 800 Amp Nema 1 PBA558
NF PANELBOARD 400A/600A MCB TYPE 1 TVSS PBA554T
NF Panelboards 800 Amp Type 3R/12 PBA558WP
Handouts
Square D® NQ and NF Lighting Panelboards 1670HO0701
Instruction Bulletins
1/4-Turn Fasteners for Panelboards 80043-450-03
Backfed Main Circuit Breaker Barrier Kit Installation onto an NQ or NF Panelboard 80043-774-01
Double Tub Nipple Kit Installation 80043-680-03
Double Tub Nipple Kit Installation onto NQ or NF Panelboard Enclosures 80043-775-01
Endwall / Closing Plate Installation 80043-678-02
Endwall and Closing Plate Kit Installation onto an NQ or NF Panelboard Enclosure 80043-773-01
General Instructions for Proper Handling, Installation, Operation, and Maintenance of Deadfront Distribution Switchboards Rated 600 V or Less PB2.1-2007
General Instructions for Proper Installation, Operation, and Maintenance of Panelboards Rated 600 Volts or Less PB1.1-2007
Handle Assembly Installation 80043-615-02
MH Weatherproof Enclosure 80043-455-04
MH Weatherproof Enclosure Installation with an NQ or NF Panelboard 80043-771-01
NC Trim Installation 80043-740-01
NF Column Width Panelboard Branch Connector Kit Installation 80043-638-02
NF Column-Width Panelboards Branch Connector Kit 80043-770-01
NF Column-Width Panelboards Supplemental Information 80043-769-01
NF Panelboard 125 A and 250 A Feed-Through Lug Kit 80043-757-02
NF Panelboard 125 A and 250 A Sub-Feed Lug Kit 80043-755-01
NF Panelboard 400 A Feed-Through Lug Kit 80043-758-02
NF Panelboard 400 A Sub-Feed Lug Kit 80043-756-01
NF Panelboard Crimp Main Lug Kit (125, 250, 400, and 600 A) 80043-762-01
NF Panelboard Dual Sub-Feed Circuit Breaker and Adapter Kit 80043-760-03
NF Panelboard FI- or KI-Frame Main Circuit Breaker and Adapter Kit 80043-765-02
NF Panelboard H- or J-Frame Main Circuit Breaker and Adapter Kit 80043-764-03
NF Panelboard H- or J-Frame Single Sub-Feed Circuit Breaker and Adapter Kit 80043-759-04
NF Panelboard L-Frame Main Circuit Breaker and Adapter Kit 80043-766-03
NF Panelboard Mechanical Main Lug Kit (125, 250, 400, and 600 Amp) 80043-761-01
NF Panelboard Neutral Kit 80043-754-02
NF Panelboards Branch Connector Kit 80043-767-01
NF Panelboards Gutter-Mounted Neutral Bonding Strap 80043-768-01
NF/NFOM Panelboards Information Manual 80043-741-02
NQ and NF Equipment Space Kit 80043-753-01
Quarter-turn Fasteners Kit Installation onto an NQ, NF, or I-Line® Panelboard Enclosure 80043-772-01
Trim and Rail Extension Kit (6-, 12-, and 18-inch) 80043-763-01
Price Lists
Laser™ Service Factory-assembled Panelboards 1600PL0701
Product Marking and Labelings
18-Circuit Panelboard Directory Card (Vertically Numbered) 0120SM1004
30-Circuit Panelboard Directory Card (Vertically Numbered) 0120SM1005
42-Circuit + 24-Circuit Panelboards Directory Cards (Vertically Numbered) 0120SM1006
42-Circuit + 30-Circuit Panelboards Directory Cards (Vertically Numbered) 0120SM1007
42-Circuit + 42-Circuit Panelboards Directory Cards (Horizontally Numbered) 0120SM1001
42-Circuit + 42-Circuit Panelboards Directory Cards (Vertically Numbered) 0120SM1008
42-Circuit + 54-Circuit Panelboards Directory Cards (Horizontally Numbered) 0120SM1002
42-Circuit + 54-Circuit Panelboards Directory Cards (Vertically Numbered) 0120SM1009
54-Circuit + 42-Circuit Panelboards Directory Cards (Horizontally Numbered) 0120SM1003
54-Circuit + 42-Circuit Panelboards Directory Cards (Vertically Numbered) 0120SM1010