Complete Breaker (Includes Frame, Trip Unit, Standard Terminals and Mounting Hardware)
| Ampere Rating |
Three-Pole
(2)
Fixed Thermal, Adjustable Magnetic |
Adjustable Thermal,
Adjustable Magnetic (4)(5) |
Four-Pole (0%)
(3)
Fixed Thermal, Adjustable Magnetic |
Adjustable Thermal,
Adjustable Magnetic (4)(5) |
| 250 | LGE3250FAG | LGE3250AAG | LGE4250FAG | LGE4250AAG |
| 300 | LGE3300FAG | — | LGE4300FAG | — |
| 320 | — | LGE3320AAG | — | LGE4320AAG |
| 350 | LGE3350FAG | — | LGE4350FAG | — |
| 400 | LGE3400FAG | LGE3400AAG | LGE4400FAG | LGE4400AAG |
| 500 | LGE3500FAG | LGE3500AAG | LGE4500FAG | LGE4500AAG |
| 600 | LGE3600FAG | — | LGE4600FAG | — |
| 6304 | — | LGE3630AAG | — | LGE4630AAG |
| Ampere Rating |
Three-Pole
(2)
Fixed Thermal, Adjustable Magnetic |
Adjustable Thermal,
Adjustable Magnetic (4)(5) |
Four-Pole (0%)
(3)
Fixed Thermal, Adjustable Magnetic |
Adjustable Thermal,
Adjustable Magnetic (4)(5) |
| 250 | LGS3250FAG | LGS3250AAG | LGS4250FAG | LGS4250AAG |
| 300 | LGS3300FAG | — | LGS4300FAG | |
| 320 | LGS3320AAG | — | LGS4320AAG | |
| 350 | LGS3350FAG | — | LGS4350FAG | — |
| 400 | LGS3400FAG | LGS3400AAG | LGS4400FAG | LGS4400AAG |
| 500 | LGS3500FAG | LGS3500AAG | LGS4500FAG | LGS4500AAG |
| 600 | LGS3600FAG | — | LGS4600FAG | — |
| 630 (4) | — | LGS3630AAG | — | LGS4630AAG |
| Ampere Rating |
Three-Pole
(2)
Fixed Thermal, Adjustable Magnetic |
Adjustable Thermal,
Adjustable Magnetic (4)(5) |
Four-Pole (0%)
(3)
Fixed Thermal, Adjustable Magnetic |
Adjustable Thermal,
Adjustable Magnetic (4)(5) |
| 250 | LGH3250FAG | LGH3250AAG | LGH4250FAG | LGH4250AAG |
| 300 | LGH3300FAG | — | LGH4300FAG | — |
| 320 | LGH3320AAG | LGH4320AAG | ||
| 350 | LGH3350FAG | — | LGH4350FAG | — |
| 400 | LGH3400FAG | LGH3400AAG | LGH4400FAG | LGH4400AAG |
| 500 | LGH3500FAG | LGH3500AAG | LGH4500FAG | LGH4500AAG |
| 600 | LGH3600FAG | — | LGH4600FAG | — |
| 630 (4) | — | LGH3630AAG | — | LGH4630AAG |
| Ampere Rating |
Three-Pole
(2)
Fixed Thermal, Adjustable Magnetic |
Adjustable Thermal,
Adjustable Magnetic (4)(5) |
Four-Pole (0%)
(3)
Fixed Thermal, Adjustable Magnetic |
Adjustable Thermal,
Adjustable Magnetic (4)(5) |
| 250 | LGC3250FAG | LGC3250AAG | LGC4250FAG | LGC4250AAG |
| 300 | LGC3300FAG | - | LGC4300FAG | - |
| 320 | - | LGC3320AAG | - | LGC4320AAG |
| 350 | LGC3350FAG | - | LGC4350FAG | - |
| 400 | LGC3400FAG | LGC3400AAG | LGC4400FAG | LGC4400AAG |
| 500 | LGC3500FAG | LGC3500AAG | LGC4500FAG | LGC4500AAG |
| 600 | LGC3600FAG | - | LGC4600FAG | - |
| 630 (4) | - | LGC3630AAG | - | LGC4630AAG |
| Ampere Rating |
Three-Pole
(2)
Fixed Thermal, Adjustable Magnetic |
Adjustable Thermal,
Adjustable Magnetic (4)(5) |
Four-Pole (0%)
(3)
Fixed Thermal, Adjustable Magnetic |
Adjustable Thermal,
Adjustable Magnetic (4)(5) |
| 250 | LGU3250FAG | LGU3250AAG | LGU4250FAG | LGU4250AAG |
| 300 | LGU3300FAG | - | LGU4300FAG | - |
| 320 | - | LGU3320AAG | - | LGU4320AAG |
| 350 | LGU3350FAG | - | LGU4350FAG | - |
| 400 | LGU3400FAG | LGU3400AAG | LGU4400FAG | LGU4400AAG |
| 500 | LGU3500FAG | LGU3500AAG | LGU4500FAG | LGU4500AAG |
| 600 | LGU3600FAG | - | LGU4600FAG | - |
| 630 (4) | - | LGU3630AAG | - | LGU4630AAG |
| Ampere Rating |
Three-Pole
(2)
Fixed Thermal, Adjustable Magnetic |
Adjustable Thermal,
Adjustable Magnetic (4)(5) |
Four-Pole (0%)
(3)
Fixed Thermal, Adjustable Magnetic |
Adjustable Thermal,
Adjustable Magnetic (4)(5) |
| 250 | LGX3250FAG | LGX3250AAG | LGX4250FAG | LGX4250AAG |
| 300 | LGX3300FAG | - | LGX4300FAG | - |
| 320 | - | LGX3320AAG | - | LGX4320AAG |
| 350 | LGX3350FAG | - | LGX4350FAG | - |
| 400 | LGX3400FAG | LGX3400AAG | LGX4400FAG | LGX4400AAG |
| 500 | LGX3500FAG | LGX3500AAG | LGX4500FAG | LGX4500AAG |
| 600 | LGX3600FAG | - | LGX4600FAG | - |
| 630 (4) | - | LGX3630AAG | - | LGX4630AAG |
Notes:
(1) Replace suffix “G” with “W” for no line and load terminals.
(2) For two-pole applications, use two outer poles.
(3) Neutral protection is indicated by the fourth character: 4 = 0%, 7 = 100%, 8 = adjustable 0–60% and 9 = 0–100%. Neutral is on LH side.
(4) 320/630 amperes is not a UL or CSA listed rating. 600 amperes is the maximum UL and CSA rating for the LG.
(5) Adjustable thermal units are typically used in IEC markets and are not UL or CSA listed.
| Ampere Rating | Number of Poles | Part Number |
| 400 | 3 (2) | LGK3400KSG |
| 4 | LGK4400KSG | |
| 630 (3) | 3 (2) | LGK3630KSG |
| 4 | LGK4630KSG |
| Maximum Amperes (3) | Three-Pole (2) Part Number | Four-Pole 0% Part Number |
| 35/35 | ||
| 630 (3) | LGE3630NN | LGE4630NN |
| LGE3630NNWC | - | |
| 50/50 | ||
| 630 (3) | LGS3630NN | LGS4630NN |
| LGS3630NNWC | - | |
| 70/53 | ||
| 630 (3) | LGH3630NN | LGH4630NN |
| LGH3630NNWC | - | |
| 100/100 Current Limiting Per UL 489 | ||
| 630 | LGC3630NN | LGC4630NN |
| 150/150 Current Limiting Per UL 489 | ||
| 630 | LGU3630NN | LGU4630NN |
| 200/200 Current Limiting | ||
| 630 | LGX3630NN | LGX4630NN |
|
Ampere
Rating |
Three-Pole
(2)
Fixed Thermal, Adjustable Magnetic |
Adjustable Thermal,
Adjustable Magnetic (4) |
Four-Pole (0%)
(5)
Fixed Thermal, Adjustable Magnetic |
Adjustable Thermal,
Adjustable Magnetic (4) |
| 250 | LT3250FA | LT3250AA | LT4250FA | LT4250AA |
| 300 | LT3300FA | - | LT4300FA | - |
| 320 | - | LT3320AA | - | LT4320AA |
| 350 | LT3350FA | - | LT4350FA | - |
| 400 | LT3400FA | LT3400AA | LT4400FA | LT4400AA |
| 500 | LT3500FA | LT3500AA | LT4500FA | LT4500AA |
| 600 | LT3600FA | - | LT4600FA | - |
| 630 | - | LT3630AA | - | LT4630AA |
Notes:
(1) Molded case switches will trip above 6300 amperes.
(2) For two-pole applications, use two outer poles.
(3) 630 amperes is not a UL or CSA listed rating. 600 amperes is the maximum UL and CSA rating for the LG.
(4) Adjustable thermal, adjustable magnetic trip units are typically used in IEC markets and are not UL or CSA listed.
(5) Neutral protection is indicated by the third character: 4 = 0%, 7 = 100%, 8 = adjustable 0–60% and 9 = 0–100%.
(6) 100% rated frame.
|
Ampere
Rating |
LS
|
LSI
|
LSG
|
LSIG
|
Neutral CT for
LSG and LSIG (1) |
| Three-Pole | |||||
| 250 | LT325033 | LT325032 | LT325035 | LT325036 | LGFCT250 |
| 400 | LT340033 | LT340032 | LT340035 | LT340036 | LGFCT400 |
| 600 | LT360033 | LT360032 | LT360035 | LT360036 | LGFCT600 |
| 630 (2) | LT363033 | LT363032 | LT363035 | LT360036 | LGFCT630 |
| Four-Pole (3) | |||||
| 250 | LT425033 | LT425032 | LT425035 | LT425036 | - |
| 400 | LT440033 | LT440032 | LT440035 | LT440036 | - |
| 600 | LT460033 | LT460032 | LT460035 | LT460036 | - |
| 630 (2) | LT463033 | LT463032 | LT463035 | LT463036 | - |
| Voltage Ratimng | Part Number |
| 120 Vac | MTST120V |
| 230 Vac | MTST230V |
Notes:
(1) Required for four-wire systems if neutral protection is desired.
(2) 630 amperes is not a UL or CSA listed rating. 600 amperes is the maximum UL and CSA listed rating for the LG.
(3) Neutral protection: 4= 0%, 6 = 60%, 7 = 100%. Electronic trip unit neutral protection is not adjustable.
(4) IL Number is 5721B13.
Long time pickup — selectable via dial setting.
630 ampere settings — 630, 600, 500, 400, 350, 315, 300, 250 (315, 630 are IEC ratings only).
600 ampere settings — 600, 500, 450, 400, 350, 315, 300, 250 (315 is IEC rating only).
400 ampere settings — 400, 350, 315, 300, 250, 225, 200, 160 (315 is IEC rating only).
250 ampere settings — 250, 225, 200, 175, 160, 150, 125, 100 (160 is IEC rating only).
Adjustable long time delay — 2–24 seconds at 6 x Ir.
Adjustable short time delay — Inst., 120, 300 ms.
|
Ampere
Rating |
LS
|
LSI
|
LSG
|
LSIG
|
Neutral CT
for LSG and LSIG (2) |
| Three-Pole (3) | |||||
| 250 | LGE325033G | LGE325032G | LGE325035G | LGE325036G | LGFCT250 |
| 400 | LGE340033G | LGE340032G | LGE340035G | LGE340036G | LGFCT400 |
| 600 | LGE360033G | LGE360032G | LGE360035G | LGE360036G | LGFCT600 |
| 630 (4) | LGE363033G | LGE363032G | LGE363035G | LGE363036G | LGFCT630 |
| Four-Pole (5) | |||||
| 250 | LGE425033G | LGE425032G | LGE425035G | LGE425036G | - |
| 400 | LGE440033G | LGE440032G | LGE440035G | LGE440036G | - |
| 600 | LGE460033G | LGE460032G | LGE460035G | LGE460036G | - |
| 630 (4) | LGE463033G | LGE463032G | LGE463035G | LGE463036G | - |
|
Ampere
Rating |
LS
|
LSI
|
LSG
|
LSIG
|
Neutral CT
for LSG and LSIG (2) |
| Three-Pole (3) | |||||
| 250 | LGS325033G | LGS325032G | LGS325035G | LGS325036G | LGFCT250 |
| 400 | LGS340033G | LGS340032G | LGS340035G | LGS340036G | LGFCT400 |
| 600 | LGS360033G | LGS360032G | LGS360035G | LGS360036G | LGFCT600 |
| 630 (4) | LGS363033G | LGS363032G | LGS363035G | LGS363036G | LGFCT630 |
| Four-Pole (5) | |||||
| 250 | LGS425033G | LGS425032G | LGS425035G | LGS425036G | - |
| 400 | LGS440033G | LGS440032G | LGS440035G | LGS440036G | - |
| 600 | LGS460033G | LGS460032G | LGS460035G | LGS460036G | - |
| 630 (4) | LGS463033G | LGS463032G | LGS463035G | LGS463036G | - |
|
Ampere
Rating |
LS
|
LSI
|
LSG
|
LSIG
|
Neutral CT
for LSG and LSIG (2) |
| Three-Pole (3) | |||||
| 250 | LGH325033G | LGH325032G | LGH325035G | LGH325036G | LGFCT250 |
| 400 | LGH340033G | LGH340032G | LGH340035G | LGH340036G | LGFCT400 |
| 600 | LGH360033G | LGH360032G | LGH360035G | LGH360036G | LGFCT600 |
| 630 (4) | LGH363033G | LGH363032G | LGH363035G | LGH363036G | LGFCT630 |
| Four-Pole (5) | |||||
| 250 | LGH425033G | LGH425032G | LGH425035G | LGH425036G | - |
| 400 | LGH440033G | LGH440032G | LGH440035G | LGH440036G | - |
| 600 | LGH460033G | LGH460032G | LGH460035G | LGH460036G | - |
| 630 (4) | LGH463033G | LGH463032G | LGH463035G | LGH463036G | - |
|
Ampere
Rating |
LS
|
LSI
|
LSG
|
LSIG
|
Neutral CT for LSG
and LSIG (2) |
| Three-Pole (3) | |||||
| 250 | LGC325033G | LGC325032G | LGC325035G | LGC325036G | LGFCT250 |
| 400 | LGC340033G | LGC340032G | LGC340035G | LGC340036G | LGFCT400 |
| 600 | LGC360033G | LGC360032G | LGC360035G | LGC360036G | LGFCT600 |
| 630 (4) | LGC363033G | LGC363032G | LGC363035G | LGC363036G | LGFCT630 |
| Four-Pole (5) | |||||
| 250 | LGC425033G | LGC425032G | LGC425035G | LGC425036G | - |
| 400 | LGC440033G | LGC440032G | LGC440035G | LGC440036G | - |
| 600 | LGC460033G | LGC460032G | LGC460035G | LGC460036G | - |
| 630 (4) | LGC463033G | LGC463032G | LGC463035G | LGC463036G | - |
|
Ampere
Rating |
LS
|
LSI
|
LSG
|
LSIG
|
Neutral CT for LSG
and LSIG (2) |
| Three-Pole (3) | |||||
| 250 | LGU325033G | LGU325032G | LGU325035G | LGU325036G | LGFCT250 |
| 400 | LGU340033G | LGU340032G | LGU340035G | LGU340036G | LGFCT400 |
| 600 | LGU360033G | LGU360032G | LGU360035G | LGU360036G | LGFCT600 |
| 630 (4) | LGU363033G | LGU363032G | LGU363035G | LGU363036G | LGFCT630 |
| Four-Pole (5) | |||||
| 250 | LGU425033G | LGU425032G | LGU425035G | LGU425036G | - |
| 400 | LGU440033G | LGU440032G | LGU440035G | LGU440036G | - |
| 600 | LGU460033G | LGU460032G | LGU460035G | LGU460036G | - |
| 630 (4) | LGU463033G | LGU463032G | LGU463035G | LGU463036G | - |
|
Ampere
Rating |
LS
|
LSI
|
LSG
|
LSIG
|
Neutral CT for LSG
and LSIG (2) |
| Three-Pole (3) | |||||
| 250 | LGX325033G | LGX325032G | LGX325035G | LGX325036G | LGFCT250 |
| 400 | LGX340033G | LGX340032G | LGX340035G | LGX340036G | LGFCT400 |
| 600 | LGX360033G | LGX360032G | LGX360035G | LGX360036G | LGFCT600 |
| 630 (4) | LGX363033G | LGX363032G | LGX363035G | LGX363036G | |
| Four-Pole (5) | |||||
| 250 | LGX425033G | LGX425032G | LGX425035G | LGX425036G | - |
| 400 | LGX440033G | LGX440032G | LGX440035G | LGX440036G | - |
| 600 | LGX460033G | LGX460032G | LGX460035G | LGX460036G | - |
| 630 (4) | LGX463033G | LGX463032G | LGX463035G | LGX463036G | - |
Notes:
(1) Replace suffix “G” with “W” for no line and load terminals.
(2) Required for four-wire systems if neutral protection is desired.
(3) For two-pole applications, use two outer poles.
(4) 630 amperes is not a UL or CSA listed rating. 600 amperes is the maximum UL and CSA listed rating for the LG.
(5) Neutral protection: 4= 0%, 6 = 60%, 7 = 100%. Electronic trip unit neutral protection is not adjustable.
| Ampere Rating |
Three-Pole
(2)
Fixed Thermal, Adjustable Magnetic |
| 250 | LGE3250FAGC |
| 300 | LGE3300FAGC |
| 320 | - |
| 350 | LGE3350FAGC |
| 400 | LGE3400FAGC |
| 500 | LGE3500FAGC |
| 600 | LGE3600FAGC |
| 600 (4) | - |
| Ampere Rating |
Three-Pole
(2)
Fixed Thermal, Adjustable Magnetic |
| 250 | LGS3250FAGC |
| 300 | LGS3300FAGC |
| 320 | - |
| 350 | LGS3350FAGC |
| 400 | LGS3400FAGC |
| 500 | LGS3500FAGC |
| 600 | LGS3600FAGC |
| 600 (4) | - |
| Ampere Rating |
Three-Pole
(2)
Fixed Thermal, Adjustable Magnetic |
| 250 | LGH3250FAGC |
| 300 | LGH3300FAGC |
| 320 | - |
| 350 | LGH3350FAGC |
| 400 | LGH3400FAGC |
| 500 | LGH3500FAGC |
| 600 | LGH3600FAGC |
| 600 (4) | - |
Notes:
(1) Replace suffix “G” with “W” for no line and load terminals.
(2) For two-pole applications, use two outer poles.
| Ampere Rating | LS | LSI | LSG | LSIG |
Neutral CT for
LSG and LSIG (1) |
| 250 | LGE325033GC | LGE325032GC | LGE325035GC | LGE325036GC | LGFCT250 |
| 400 | LGE340033GC | LGE340032GC | LGE340035GC | LGE340036GC | LGFCT400 |
| 600 | LGE360033GC | LGE360032GC | LGE360035GC | LGE360036GC | LGFCT600 |
| 630 (2) | LGE363033GC | LGE363032GC | LGE363035GC | LGE363036GC | LGFCT630 |
| Ampere Rating | LS | LSI | LSG | LSIG |
Neutral CT for
LSG and LSIG (1) |
| 250 | LGS325033GC | LGS325032GC | LGS325035GC | LGS325036GC | LGFCT250 |
| 400 | LGS340033GC | LGS340032GC | LGS340035GC | LGS340036GC | LGFCT400 |
| 600 | LGS360033GC | LGS360032GC | LGS360035GC | LGS360036GC | LGFCT600 |
| 630 (2) | LGS363033GC | LGS363032GC | LGS363035GC | LGS363036GC | LGFCT630 |
| Ampere Rating | LS | LSI | LSG | LSIG |
Neutral CT for
LSG and LSIG (1) |
| 250 | LGH325033GC | LGH325032GC | LGH325035GC | LGH325036GC | LGFCT250 |
| 400 | LGH340033GC | LGH340032GC | LGH340035GC | LGH340036GC | LGFCT400 |
| 600 | LGH360033GC | LGH360032GC | LGH360035GC | LGH360036GC | LGFCT600 |
| 630 (2) | LGH363033GC | LGH363032GC | LGH363035GC | LGH363036GC | LGFCT630 |
Notes:
(1) Required for four-wire systems if neutral protection is required.
(2) 630 amperes is not a UL or CSA listed rating. 600 amperes is the maximum UL and CSA listed rating for the LG.
Series G LG circuit breakers are available with the Arcflash Reduction Maintenance System™ integrated into the electronic trip units helping to improve safety by providing a simple and reliable method to reduce fault clearing time. The Arcflash Reduction Maintenance System unit utilizes a separate analog trip circuit that provides faster
interruption times than the standard (digital) “instantaneous” protection. Work locations downstream of a circuit breaker with an Arcflash Reduction Maintenance System unit can have a significantly lower incident energy level, reducing arc flash potential to the system.
| Ampere Rating |
ALSI
|
ALSIG
|
Neutral CT for
LSG and LSIG (1) |
| 250 | LT325038 | LT325039 | LGFCT250 |
| 400 | LT340038 | LT340039 | LGFCT400 |
| 600 | LT360038 | LT360039 | LGFCT600 |
| 630 | LT363038 | LT363039 | LGFCT630 |
Notes:
(1) Required for four-wire systems if neutral protection is required.
|
Maximum
Breaker Amperes |
Terminal
Body Material |
Wire
Type |
AWG
Wire Range/ Number of Conductors |
Metric
Wire Range (mm2) |
Number of
Terminals Included |
Part Number |
| 400 | Aluminum | Cu/Al | 500-750 (1) | 240-380 (1) | 3 | 3TA631LK (1) |
| 400 | Aluminum | Cu/Al | 500-750 (1) | 240-380 (1) | 4 | 4TA631LK (1) |
| 400 | Copper | Cu | 500-750 (1) | 240-380 (1) | 3 | 3T631LK (1) |
| 400 | Copper | Cu | 500-750 (1) | 240-380 (1) | 4 | 4T631LK (1) |
| 630 | Aluminum | Cu/Al | 2-500 (2) | 35-240 (2) | 1 | TA632L |
| 630 | Aluminum | Cu/Al | 2-500 (2) | 35-240 (2) | 3 | 3TA632LK (1)(2) |
| 630 | Aluminum | Cu/Al | 2-500 (2) | 35-240 (2) | 4 | 4TA632LK (1)(2) |
| 630 | Copper | Cu | 2-500 (2) | 35-240 (2) | 3 | 3T632LK (1) |
| 630 | Copper | Cu | 2-500 (2) | 35-240 (2) | 4 | 4T632LK (1) |
| 400 | Aluminum | Cu/Al | 3-500 (1) | 35-240 (1) | 1 | TA350LK (2) |
| 400 | Copper | Cu | 3-500 (1) | 35-240 (1) | 1 | T350LK |
| Description | Part Number |
| Three-pole terminal cover (3) | LTS3K |
| Four-pole terminal cover (3) | LTS4K |
| Description |
Terminal
Body Type |
Part Number |
| Three-pole kit | Aluminum | 3TA632LKW |
| Four-pole kit | Aluminum | 4TA632LKW |
| Three-pole kit | Copper | 3T632LKW |
| Four-pole kit | Copper | 4T632LKW |
| Number of Poles | Part Number |
| 3 | LGTEW3 |
| 4 | LGTEW4 |
| Number of Poles | Part Number |
| 3 | LGTES3 |
| 4 | LGTES4 |
| Description | Part Number |
| Handle extension | HEXLG |
| Package of 2 | Part Number |
| Interphase barrier | IPB3 |
| Maximum Amperes |
Wire Size
Range AWG Cu |
Part Number |
| 400 | 2–500 kcmil | TA350LKRF |
| 400 | 2–500 kcmil | 3TA350LKRF |
| 630 | 2–500 (2) kcmil | TA632LKRF |
| 630 | 2–500 (2) kcmil | 3TA632LKRF |
Rear fed terminals allow the cable to connect to the breaker from the back instead of the top. Terminal shields or interphase barriers are included with each rear fed terminal kit (depending on frame size). When catalog number starts with a 3, it indicates a kit with three terminals in each kit. Catalog number beginning with a TA indicates one terminal.
Field-installed multiwire connectors for the load side (OFF) end terminals are used to distribute the load from the circuit breaker to multiple devices without the use of separate distribution terminal blocks.
Multiwire lug kits include terminal shield, mounting hardware, insulators and tin-plated aluminum connectors to replace three mechanical load lugs. UL listed as used on the load side (OFF) end.
|
Maximum
Amperes |
Wires per
Terminal |
Wire Size
Range AWG Cu |
Kit
Part Number |
| 600 | 6 | 14–1/0 | 3TA600L6K |
Notes:
(1) Includes LTS3K (three-pole) or LTS4K (four-pole) terminal covers.
(2) Standard terminal included with complete breaker.
(3) Included in TA63IL, T63IL, TA632L kits listed above.