N-Frame 310+ molded-case circuit breaker 320–1200A

1 Technical Data TD03801003 EEffective March 2014 Supersedes July 2010 N-Frame 310+ molded - case circuit breaker 320 1200 AProduct description The Series GT N-Frame is NEMAT, ULT, and CSAT rated Zone selective interlocking and Arcflash Reduction Maintenance SystemE can now be enabled on the N-Frame The 310+ electronic trip unit eliminates the need for rating plugs and is compatible with the cause of trip display and cause of trip LED All N-Frame circuit breakers are suitable for reverse-feed useTable 1. Frame Trip RatingsFrameInterrupting Capacity (kAIC)Ampere RatingNGS50320 800 or 500 1200 bNGH65 NGC100 NGU150 800A 1200A Data TD03801003 EEffective March 2014N-Frame 310+ molded - case circuit breaker 320 1200A eaton 2. NGS, NGH, NGC, and NGU Rating and Ampere RangeSpecificationDescriptionBreaker typeNGSNGHNGCNGUS hort- circuit Current Ratings (kA rms) AC 50 60 HzNEMA UL 489240 Vac85100200300480 Vac5065100150600 Vac25355075 Number of poles3, 43, 43, 43 Adjustable long-time pickup CSA No.

2 5800AA = 320E = 600B = 400F = 630C = 450G = 700D = 500H = 8001200AA = 500E = 800B = 600F = 900C = 630G = 1000D = 700H = 1200 Electronic rms LS, LSI, LSG, LSIG, ALSI, ALSIGD imensions in inches (mm) ( ) ( ) ( ) ( ) ( ) ( )Weight (approximate) lbs (kg) ( ) ( )Current sensor for ground faultCatalog numberBreaker ampere rangeNGFCT120320 1200 Table 3. Line and Load TerminalsMaximum breaker Amperesterminal Body MaterialWire typeAWG Wire Range/no. of ConductorsMetric Wire Range (mm2)Catalog numberStandard Copper/Aluminum Pressure Terminals700100012001200 AluminumAluminumAluminumAluminumCu/AlCu/ AlCu/AlCu/Al(2) 1 500 kcmil(3) 3/0 400 kcmil(4) 4/0 500 kcmil(3) 500 750 kcmil50 24095 185120 240300 400TA7000NB1TA1000NB1 TA1200NB1 TA1201NB1 bOptional Copper Pressure Type Terminals70010001200 CopperCopperCopperCuCuCu(2) 2/0 500 kcmil(3) 3/0 500 kcmil(4) 3/0 400 kcmil70 24095 24095 185T700NB1T1000NB1T1200NB3 Terminal rating is Terminal rating is Data TD03801003 EEffective March 2014N-Frame 310+ molded - case circuit breaker 320 1200A eaton ( ) ( ) ( ) ( ) ( ) ( ) ( ) ( ) ( )Removable Terminal Cover Must be in Place While in ServicePush-To-TripTerminal ArrangementsAluminum or Copper Cable Catalog RangeNo.

3 OfCablesTorque(lb-in)TA700NB1#1 500 kcmil2375TA1000NB13/0 400 kcmil3375TA1200NB14/0 500 kcmil4375TA1201NB1500 750 kcmil3450 Copper Cable OnlyT700NB12/0 500 kcmil2300T1000NB13/0 500 kcmil3300T1200NB33/0 400 kcmil4275 HandlePositionDim Ain (mm)Dim Bin (mm) ( ) ( ) ( ) ( ) ( ) ( ) ( ) ( )Handle Forceslbs (kgs) ON130 ( )OFF105 ( )RESET160 ( )HANDLE PIVOT qLOAD ENDLINE END MECHLOAD ENDLINE ENDLOAD ENDLINE ENDR emovable Terminal Cover Must be in Place While in Service4X ( ) MTG Holes ( ) CBOREX ( ) CBORE ( ) CBOREX ( ) DP from ( )12X 13 Tap (12X ) ( ) ( ) ( ) ( ) ( ) ( ) ( ) ( ) ( ) ( ) ( ) ( ) ( ) ( ) ( ) ( )BHandle ( )21 2 ~ON13 2 ~OFF0 2 ~Trip15 2 ~ ( ) ( ) ( ) ( ) ( ) ( ) ( ) ( ) ( )6X ( ) X ( ) DPto Accept #8 Thread-Cutting ( ) ( ) ( )R ( ) ( ) ( ) ( ) REF( ) ( ) ( ) ( ) ( ) ( ) ( ) ( ) ( ) ( ) ( ) ( ) ( ) ( ) ( ) ( )Contact Position Indicator:Red = ONGreen = OFFW hite = TRIPS lots for Attachment Leads x ( x )Wire Trough for Attachment ( ) ( ) ( )Figure 1.

4 AB DE-IONT circuit breaker NG 310+ FrameEaton1000 eaton BoulevardCleveland, OH 44122 United 2014 EatonAll Rights ReservedPrinted in USAP ublication No. TD03801003E / Z15043 March 2014 eaton is a registered other trademarks are property of their respective 310+ molded - case circuit breaker 320 1200A Technical Data TD03801003 EEffective March 2014 Ampere RatingHole 700 and 800 1200 PIVOT breaker Drilling Plans: Rear Connecting StudsLINE ENDLOAD ENDHANDLE PIVOT breaker Front Cover CutoutLINE ENDLINE ENDM ounting Bolts / Front Connecting TerminalsHANDLE PIVOT breaker LINE ENDLOAD ( ) ( ) ( ) ( ) ( ) ( ) ( )2X ( ) ( ) ( ) ( ) ( ) ( )6X ( ) ( ) ( ) ( )Figure 2. Type NG 310+ Three-Pole Breakers