Westinghouse Molded Case Circuit Breakers Engine Generator FG Amperes
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1 Circuit s FG Amperes Description Page Type FG Three-Pole... 1 Type JG Three-Pole... 3 Type KG Three-Pole... 5 Type G Three-Pole... 7 Type MG Three-Pole... 9 Type NG Three-Pole... 11
2 Cutler-Hammer Dimension Sheet Page 1 Type FG Three-Pole Front View.740 (18.80) Type FG Three-Pole Circuit s FG Amperes (39.67).197(5.00) diameter hole.328(8.33) diameter c'bore 1.938(49.23) deep from top..344(8.74) diameter c'bore.656(16.66) deep from bottom. 4 mounting holes for (No. 8) x 1(M4x0.7x38.10) mounting screws..188(4.78)r.750 (19.05) (35.71) 4 (114.30).375 (9.53).375 (9.53).375 (9.53) On Off.156 R (3.96) R.450(11.43) diameter 6 holes.110(2.8) dia. x.310(7.9) deep, 2 holes accept #6(M3.5) thread cutting screws.819 (20.80) (26.19) (101.60) Side View.125(3.18) x.750(19.05) slots for attachment leads 2.350(59.69) R (44.83).750 (19.05).078 (1.98).094 R (2.39) R.266 (6.76).469 (11.91).625 (15.88) (28.58) (76.20) (85.73) (5.56) wide conductor with.219(5.56) diameter hole [.260 (6.60) diameter hole 175 amp] (152.40) Trough for Attachment eads.750 (19.05).094(2.3) R (Typ.) 4-PC S..172 (4.37).016(.41).125(3.18) x.484 (12.3) deep 6 holes accept #8(M4) thread cutting screws (33.73) (52.40) Push to Trip (104.78) (33.73).687 (17.46) (25.40).344 (8.74).016 (.41) E D B A :.344(8.74) wide x.375(9.53) thick 0 taper, load end 7 taper, line end To top of clip.188 (4.78) (31.75).078(19.81) 2.219(56.36) 2.938(74.63) 3.188(80.98) 3.375(85.73) wide 3(88.90) conductor with.219(5.56) C diameter hole [.250 (6.35) diameter hole 175 amp].313 (7.95) (60.33) (4.78).469 (11.91).469 (11.91).266 (6.76).250(6.35).750(19.05).062(1.57) (39.67).740 (18.80) Reproduced from drawings 1490D63 and 1490D67 Status Dimensions ➀ Measured.125 (3.175) above Escutcheon. ➁ Applied by breaker handle to external handle mechanism. A B C D E Force, bs.➀ On 3.07 (77.98) 2.92 (74.17) 3.96 (100.58) 3.40 (86.36) 3.33 (84.58) 14 (6.35 kgs.) Tripped 2.65 (67.31) 2.57 (65.28) 4.06 (103.12) 2.99 (75.94) 2.98 (75.69) 4➁ (1.81 kgs.) Off 2.08 (52.83) 2.14 (54.36) 4.12 (104.65) 2.42 (61.47) 2.56 (65.02) 16 (7.26 kgs.) Reset 1.98 (50.29) 2.05 (52.07) 4.11 (104.39) 2.30 (58.42) 2.48 (63.10) 21 (9.53 kgs.)
3 Page 2 Circuit s, FG Type FG Three-Pole Front Cover Cutout Drilling Plans Front Connected Rear Connected.250(6.35) R.750(19.05).469 (11.91) (58.75) (73.81) 2 (73.03) (80.16) (48.41) (30.20).594 (15.10).581 (14.76) 4 (114.30) (128.60).188(4.78) ocation of diameter megger holes, if required.688 (17.48) (M4 x 0.7) tap, 4 holes (69.85).438(11.13) diameter holes for 15 to 100 amp.563(14.30) diameter holes for 125 to 150 amp Reproduced from drawings 1490D63 and 1490D67 Cutler-Hammer & Cutler-Hammer Products Five Parkway Center Pittsburgh, Pennsylvania, U.S.A Printed in U.S.A.
4 Cutler-Hammer Dimension Sheet Page 3 Type JG Three-Pole Circuit s JG Amperes Type JG Three-Pole Front View.188 R (4.78) R.781 (19.84).031 (.79) (104.78) (69.85).688 (17.46).688 (17.46).281 (7.14) Dia. 4 Mtg. Holes Dia. C'Bores Side View (103.17) (96.82).812 (20.62).625 (15.88) (65.89) (72.24) (26.19) (37.69) (254.00) (184.15) (211.94).110 (2.79) Dia. 6 Holes.250 R (6.35) R ON/ OFF/.125 (3.18) (101.60) (95.25).250 (6.35) (22.23) (191.29) 15 5 RESET ON OFF TRIP.035 (.89) (26.97).156 (3.96) (147.24) C Typical 3-Pole Thermal-Magnetic Trip Unit.469 (11.91).031 (.79) (22.23).188 (4.78).688 (17.46) Dia. 6 Holes (97.33) (103.17) (109.52) Max (125.81) Max.062(1.57).625(15.88).812(20.62) (53.98) Front Connected Terminals Catalog Cable Amp Wire Torque Number Rating Size T250KB Cu Single #4 to 350 MCM 180 b-in (20.3 Nm) TA250KB Cu-Al Single #4 to 350 MCM 275 b-in (31.1 Nm) 9.38 (23.83) Reproduced from drawings 1491D63 and 1491D67 (25.40)
5 Page 4 Circuit s, JG Type JG Three-Pole Drilling Plans.688 (17.46) (69.85).563 R (14.29) R (69.85).750 (19.05).344 R (8.74) R (39.67).781 (19.84) (184.15) (103.58) C Mounting (M6X1) Tap 4 Holes C Shown in OFF Position (205.59) (124.23) C Rear Connecting Studs.625 (15.88) Dia 6 Holes C Omit 2 Center Holes for 2-Pole s.813 (20.64) (124.23) (205.59).563 R (14.29) R.813 (20.64) C Drawout Support Blocks.375 (9.53) C.438 (11.13) Dia. 4 Holes.250 (6.35).688(17.46).718 (18.24).188 R (4.78) R 3 Megger Holes If Required (100.03) Front Cover Cutout C (74.22) (22.23) C (84.53) (69.85) 3 (88.90) (44.45) (78.59) (46.04) (92.08) (57.15) 1.125(28.58) Mounting Holes Use (M6X1) X 2 (73.025) Pan Head Screw With Sems. Tightening Torque 65 b-in (7.34) Nm. Dia..281 (7.14) Dia (60.33).147 (3.73) 8 Holes Deep to Accept #8 Thread Cutting Screws (122.25).375 (9.53) C of ON/ Contact Position Indicators Red-ON Green-OFF White-TRIP.312 (7.29) Dia..375(9.53).750(19.05) OFF/ C A B D Reproduced from drawings 1491D65 and 1491D67 E F Dimension Status A B C D E F Hdl. Oper. Force On 5.24 (132.10) 5.12 (130.05) 5.54 (140.72) 5.49 (139.45) 4.77 (121.56) 4.72 (119.89) 32 b. (142.3 Nm) Tripped 4.79 (121.67) 4.71 (119.63) 5.10 (129.54) 5.10 (129.54) 4.87 (123.70) 4.85 (123.19) Off 4.02 (102.11) 4.06 (103.12) 4.33 (109.82) 4.45 (113.03) 4.91 (124.71) 4.95 (125.73) 22 b. (97.9 Nm) Reset 3.91 (99.31) 3.96 (100.58) 4.21 (106.93) 4.36 (110.74) 4.90 (124.46) 4.95 (125.73) 38 b. (169.0 Nm) Cutler-Hammer & Cutler-Hammer Products Five Parkway Center Pittsburgh, Pennsylvania, U.S.A Printed in U.S.A.
6 Cutler-Hammer Dimension Sheet Page 5 Type KG Three-Pole Circuit s KG Amperes Type KG Three-Pole Front View.625 (15.88) 6 Holes 5.490(139.43) (87.32).110 (2.79) Dia. x.297 (7.54) Deep, 4 Holes Accept #6 (M3) Thread Cutting Screws Side View (109.55).844 (21.44) (112.70) (31.75) (65.10) (9.52).375 (9.52) Contact Position Indicators Red/1 - On Green/O - Off White - Trip.250 R (6.35) R.063 (1.60).093 R (2.36) R.750 (19.05).860 (21.84) (52.39) (104.78) (60.73) (30.96) (41.28).188 (4.77) R ON (61.89) OFF (41.28).125 (3.18) (101.60) (90.50) (71.45).250 (6.35).625 (15.88) (214.33) 8 (225.43) (257.18) Trough for Attachment eads.188 (4.77) Dia. C'Bore x.031 (.79) DP.147 (12.7) Dia. Hole x DP to Accept #8 (M4) Thread Cutting Screws (8 Places).125 (3.18) Wide x.750 (19.05) Slots for Attachment eads C D C B A 3 R (98.42) R (96.85).062 (1.57) (27.00).188 (4.77) (44.04).694 (17.63) (25.40) (5.31) 5.000(127.00) (146.46) 5.966(151.54).188 R (4.77) R 4.782(121.46) (13.89) (17.73) (29.49).937 (23.80) Dimensions for Extended Terminals and Barrier Style Nos. 4212B60G02, 4212B61G02 and 1492D24H01 (22.25).438 (11.13).063 (1.60).250 (6.35) R.281 (7.14) Dia. Mounting Holes 4 Holes for (M6) x 1.50 (38) Mounting Screws Dia. C'Bore from Top 2 (73.03) Deep (66.68) Deep.438 (11.13) Dia C'Bore.750 (10.05) Deep from Bottom (103.17) E F.062 (1.57) (96.82).188 (4.77) (27.00).750 (19.05) Wide Conductor with.391 (9.93) Dia Hole ine and (60.33) Dimensions Status A B C D E F Force➀ On lbs. (136.9) (132.1) (144.5) (142.5) (119.9) (121.2) (13.61 kgs.) Tripped (121.2) (119.1) (129.0) (129.8) (124.2) (124.2) Off lbs. (105.7) (106.9) (113.3) (117.9) (125.7) (124.7) (11.34 kgs.) Reset lbs. (103.4) (105.2) (116.1) (115.8) (125.7) (124.5) (15.87 kgs.).766 (19.46) ➀ All handle forces measured approximately (3.17) from top of handle. Reproduced from drawings 1492D64 and 1492D68
7 Page 6 Circuit s, KG Type KG Three-Pole Rear Connected Studs Front Connected Terminals Front Cover Cutout.844 (21.44).344 R (8.74) R (22.23) Dia. (6 Places) (Omit 2 Center Holes for 2-Pole) C (130.58) 8 (225.42) C (125.02) (214.33).188 R (4.77) R C.828 (21.03) (95.25) (41.66) (31.75) (94.84) (M6) 4 Holes.859 (21.83) (89.31) (66.68) (121.46) (33.34) (60.73) R (22.22) R ON OFF.562 (14.27) C (25.39).625 (15.87).625 (15.87) (25.39) (94.82) (130.62) 8 (225.34) (151.15) 10 (206.60).313 (7.93).625 (15.87) (43.64) (87.28) (43.64).859 (21.82) (130.52) 8 (130.22) (94.32).688 (17.46) 3.375(85.69) 5.250(133.30) 9.688(245.97) 3.375(85.69).281 R (7.14) R.438 (11.11) Dia. 4 Holes for.312 (7.92) Mtg. Bolts (112.67) (43.64) Reproduced from drawings 1492D63 and 1492D67 Cutler-Hammer & Cutler-Hammer Products Five Parkway Center Pittsburgh, Pennsylvania, U.S.A Printed in U.S.A.
8 Cutler-Hammer Dimension Sheet Page 7 Type G Three-Pole Circuit s G Amperes Type G Three-Pole Front View Side View.250 (6.35.) 20 Tap.406 (10.31) (6) Holes.313 (7.93) (104.73) (52.37).125 (3.17).313 (7.93) Deep Accepts #6 Thread Cutting (22.22).438 (11.11) (109.49) (96.80).906 (23.01) Saf-T-Vue Cover When Included.531 (13.49) 1 (47.61) (133.30) (85.69) (29.36) (28.56) (60.30) (1.59) (242.00) (76.96) ON (142.82) (272.94) (173.76) (332.45) 1 Automatic Tripped (70.62) ON (85.69) R (51.18) (1.59) 1 (47.61) (30.15) (44.43) (78.55) (243.59) (80.14) (113.46) MAGNETIC TRIP OFF PUSH TO TRIP Test Points RATING PUG (142.82) (158.69) 15 Reset Max OFF.250 (6.35).094 (2.38) Rod (30.94).063 (1.59) (15.08) (44.43) 4 (114.26).313 (7.93).063 (1.59) (104.73) (30.94) (209.47) (61.89) (46.23).313 (7.93) Mounting Holes.531 (131.49) Counterbore (4 Holes).891 (22.61).438 (11.11) Thick 1 Taper Both Sides (39.67) Wide.531 (13.49) (64.27) (103.15) (28.56).938 (23.80).688 (17.46) (29.36) (22.22) (101.60) (203.52) 5 Current Carrying Parts Omitted From Center Pole for 2-Pole Reproduced from drawing 2608D92
9 Page 8 Circuit s, G Type G Three-Pole Drilling Plans For Mounting Bolts (Front Connected Terminals) For Rear Connected Studs (Insulated Panel) For Plug-In Block Front Cover Cutout.250 (6.35) 20 Tap.313 (7.93) (4 Holes) C of (128.54) (242.00) (113.46) 5 C of (129.33) 4 (114.26) (242.54) (26.98) Hole for 300 to Holes for 3-Pole 4 Holes for 2-Pole Omit 2 Center Holes for 2-Pole (30.15) Radius 5 C of Studs C of C of (44.43) (28.56) (129.33) 4 (114.26) (243.59) (300.71) Cutout for Saf T Vue Cover (If required) (49.99) (44.43) (49.99) (190.43) 3 (123.78) (66.65) C of C of.250 (6.35) (44.43) (50.78) 4 (114.26) C of C of (25.39) C of Studs (28.56) (6 Holes) for.375 (9.52) Mounting Bolts ocation for.313 (7.93) Megger Holes (If required) (4443.) (177.73) Rear Connected Studs.438 (11.11) A Plug-In- Adapter Kit Terminal Arrangements Copper Cable Only (Must be Ordered Separately) Cat. #TA600A Wire Size (2) MCM Optional A/CU Cable (Must be Ordered Separately) Cat. #TA600A Wire Size (2) MCM Do Not Use More Than 25 Ft. bs. Torque to Tighten Nuts Do not Use More Than 25 Ft. bs. Torque to Tighten Nuts Ampere Style Thread Dimension Rating Number Size A 300 to C960G / to C960G / to C960G / 32 Poles Ampere Kit Style Thread Rating Number Size to C644G to C644G Reproduced from drawing 2608D93 Cutler-Hammer & Cutler-Hammer Products Five Parkway Center Pittsburgh, Pennsylvania, U.S.A Printed in U.S.A.
10 Cutler-Hammer Dimension Sheet Page 9 Type MG Three-Pole Front View Type MG Three-Pole Side View Circuit s MG Amperes.344 (8.73) Mounting Hole.703 (17.85) Counterbore (4) Holes 5-13 Tap Removable oad End Terminal Cover Clearance to Arc Barrier (78.55) 1.031(26.18).734(18.65).719(18.25) 1.313(33.32).531(13.49).250(6.35) See Figures 1, 2 and Table (71.01) 3.00 (76.17) (406.24) 9.250(234.86) (374.50) 8.625(218.99) 1 (47.61) (206.29) (349.11) 19.5 On - 13 Tap 1 Auto Trip 3 R (98.39) R.594(15.08) (55.54).766(19.44) (28.56) (177.73).406(10.31) (10.31) Minimum (291.99) B 5.750(145.99) Test Points (95.21) (77.76) (71.01) 15 Reset Maximum 11.5 Off.438 (11.11) Thick 1 Taper Each Side (15.08).344(8.73) (28.56) (114.26) Terminal Block Assembly Used Only on Ground Fault s.703(17.85) 1.188(30.15) (26.18) (53.95) 8.250(209.47) (77.76) (38.88) 4.125(104.73) 1.781(45.23).891(22.61) 1.125(28.56) (60.30) Removable oad End Terminal Cover 3.813(96.80) 4.063(103.15) 4(123.78) 6.063(153.93) 1.125(28.56).531(13.49).734(18.65) 1.031(26.18) Forces (From End of ) On 50 lbs. (22.68 kgs.) Off 24 lbs. (10.89 kgs.) Reset 60 lbs. (27.22 kgs.) (22.22) 2.250(57.13) (76.17) (222.16) (161.86) (85.69) (66.65) Current Carrying Parts are Omitted From Center Pole for 2 Pole Reproduced from drawing 2605D21
11 Page 10 Circuit s, Type MG Three-Pole MG Amperes For Mounting Block (Front Connected Terminals) C of C of (218.99) (155.51) (374.50) For Rear Connected Studs 5 C of C of 7.00 (177.73) 11 (291.99) 4 (114.26) For Plug-In Adapter Kit (25.39) (209.47) C of (177.73) C of 11 (291.99) (374.50) 4 (114.26) (25.79) Front Cover Cutout (6)Holes for.375(9.52) MountingBolts.250(6.35) Radius (24.60) (52.76) (82.52).188(4.76) Radius C of 3 (88.87) (117.73) C of.375(9.52) (4)Holes.813(20.63)Hole for 250Ampsto400Amps 6 Holes for 3 Pole 4 Holes for 2 Pole (26.98) Radius 1.063(26.98)Hole for 450Ampsto600Amps Omit 2 Center Holes for 2 Pole 1.188(30.15)Hole for 700Ampsto800Amps Front Connected Terminals (Must be Ordered Separately) Amp Catalog Wire Size Rating Number Number of Cables For Al/Cu Cable 600 TA700MA1 (2) #1-500 MCM 800 TA800MA2 (3) 3/0-400 MCM For Copper Cable 600 T600MA1 (2) 2/0-500 MCM 800 T800MA1 (3) 3/0-300 MCM Rear Connected Studs 2 Required Per Pole (Not Supplied With ) Stud Ampere Stud Style Thread Dimension Rating Number Size A C960G04 3 / / C960G05 3 / / C960G06 3 / / C960G / C960G / C960G / C960G / / C960G / / C960G / / 32 Plug-In Adapter Kit 1 Kit Per (Not Supplied With ) Poles Ampere Kit Style Thread Fig. Rating Number Size C644G / C644G / C544G / C544G / (7.93) (22.22) Panel.313 (7.93) GROUND FAUT TRIP TIME IN SECONDS PICK UP AMPERES MAGNETIC TRIP PUSH TO TRIP RATING PUG (48.40) BREAKER TEST GROUND FAUT TEST.453 (11.50) Nameplate (Used With Ground Fault Trip) Reproduced from drawing 260D (16.66).656 (16.66).438 (11.11) A Figure 1 Do Not Use More Than 25 Ft. bs. Torque To Tighten Nuts Figure 2 Cutler-Hammer & Cutler-Hammer Products Five Parkway Center Pittsburgh, Pennsylvania, U.S.A Printed in U.S.A.
12 Cutler-Hammer Dimension Sheet Page 11 Type NG Three-Pole Circuit s NG Amperes Type NG Three-Pole Front View Side View Bolted Rear Connected Studs (104.73) (26.98).531 (13.49) (209.47) - 13 Tap Removable Terminal Cover.703 (17.85) (182.49) (152.34) (29.36).359 (9.12).734 (18.65) (36.50).594 D (15.08) D.344 D (8.73) D 1 Inch Thick (Minimum) Insulated Panel (0.79) (71.01) (58.71) (157.10) (406.24) 9.250(234.86) (374.50) 8.625(218.99) B 5.625(142.82) Terminal Block Assembly Used Only On Ground Fault s (77.76) (38.88).703 (17.85) 1(47.61) (206.29) (95.21) (349.11) (77.76) (71.01) 19 30' On 15 Reset Maximum 11 30' Off Removable Terminal Cover 1 Auto. Trip.438(11.11) Wide 1 Taper on Each Side.063 (1.59).156 (3.97).531 (13.49) (84.90) (1.59) R (97.59) R (3.97) (131.71).719 (18.25) (29.36) C of (29.36) (17.85) (36.10) (78.55) (177.73) (58.71) 11 (291.99) Outside Poles (Stud Style Number 373B375G04) 1.250(31.74)- 12 Threads Center Pole (Stud Style Number 373B375G03) Omit for 2-Pole (266.60) (30.15) Front Connected Terminals (Must be Ordered Separately) (53.95).531 (13.49) Current Carrying Parts are Omitted From Center Pole for 2-Pole (25.79) (28.56) (57.13) (51.57) Amp Catalog Wire Size Rating Number Number of Cables For Al/Cu Cable 1000 TA1000NB1 (3) 3/0-400 MCM 1200 TA1200NB1 (4) 4/0-500 MCM B 2 Terminal Unit 13 / 16 3 Terminal Unit 1 9 / 16
13 Page 12 Circuit s, Type NG Three-Pole NG Amperes Drilling Plans For Mounting Bolts For Rear Connected Studs (Insulated Panel) Front Cover Cutout 0.375(9.52) Dia. (4) Holes or.313(7.93)- 18 Tap C of (218.99) (374.50) Omit Holes in Center Pole for 2-Pole C of (177.73) 11 (291.99) (49.99) (152.74) (52.76) (82.52) C of R (6.35 R) C of R (4.76 R) C of Amp Rating C of Hole Dia. 3 (88.87) (203.12) / / 16 Cutler-Hammer & Cutler-Hammer Products Five Parkway Center Pittsburgh, Pennsylvania, U.S.A Printed in U.S.A.
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