APPENDIX — MAIN-LINE CIRCUIT BREAKER
| TABLE 25. FACTORY RECOMMENDED MAIN LINE CIRCUIT BREAKERS |
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| FOR MQ POWER INDUSTRIAL GENERATORS |
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Generator | ABB or | Generator | Generator | Breaker | Breaker | Interrupting | Cable Size | Max. No. | Type Of | Torque Rating | |
Cutler Hammer | Output | Output | Frame Size | Trip Rating | Rating RMS | (kcmil) | Cables Per | Connection | Of Lugs | ||
Model | Model No. | (Voltage) | (Amps) | (Amps) | (Amps) | (Sym Amps) | {Note 1} | Phase | {Note 2} | (in./lbs.) | |
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| T1NQ070TL | 240V - 1Ø | 83 |
| 90 |
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MQP20IZ | 208V - 3Ø | 69 | 100 | 70 | 22,000 | #1 ~ 6 | 1 | Aluminum | 45 | ||
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T1NQ060TL | 240V - 3Ø | 60 | 60 | Lugs | |||||||
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| T1NQ030TL | 480V - 3Ø | 30 |
| 30 |
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| 240V - 1Ø | 125 |
| 125 |
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| T3NQ125TL |
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| #1 ~ 4 |
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MQP30DZ/ | 208V - 3Ø | 104 | 225 | 100 | 22,000 | 1 | Aluminum | 45 | |||
MQP30GM |
| 240V - 3Ø | 90 | 90 |
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| T1NQ050TL | 480V - 3Ø | 45 |
| 50 |
| #1 ~ 6 |
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| T3NQ150TW | 240V - 1Ø | 167 |
| 175 |
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| Spaded |
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| 225 |
| 25,000 | #1 ~ 2 |
| 275 | |||
| 208V - 3Ø | 130 | 150 |
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MQP40IZ | T3NQ125TW | 240V - 3Ø | 120 |
| 125 |
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| T1NQ060TL | 480V - 3Ø | 60 | 100 | 60 | 22,000 | #1 ~ 6 |
| Aluminum | 45 | |
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MQP45GM |
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| Technical data for this unit is TBD |
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| T3NQ175TW | 240V - 1Ø | 208 |
| 200 |
| #1 ~ 1/0 |
| Spaded |
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| 225 |
| 25,000 |
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| 275 | |||
| 208V - 3Ø | 173 | 175 | #1 ~ 2 |
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MQP50IZ | T3NQ150TW | 240V - 3Ø | 150 |
| 150 |
| #1 ~ 2 | 1 |
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| T1NQ070TL | 480V - 3Ø | 75 | 100 | 80 | 22,000 | #1 ~ 6 |
| Aluminum | 45 | |
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| T4NQ250BW | 240V - 1Ø | 250 |
| 250 |
| #1 ~ 2/0 |
| Spaded |
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| 250 |
| 25,000 |
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| 275 | |||
| 208V - 3Ø | 208 | 200 | #1 ~ 1/0 |
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MQP60GM/ |
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T3NQ175TW | 240V - 3Ø | 180 |
| 175 |
| #1 ~ 2 | 1 |
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MQP60IV |
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| T1NQ100TL | 480V - 3Ø | 90 | 100 | 100 | 22,000 | #1 ~ 4 |
| Aluminum | 45 | |
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| 240V - 1Ø | 250 |
| 250 |
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| JG3250 |
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| 250 | 18,000 | #4 ~ 350 |
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| 275 | ||
MQP80GM/ | 208V - 3Ø | 260 | 1 | Aluminum | |||||||
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MQP80IV |
| 240V - 3Ø | 226 |
| 225 |
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| FJ3125 | 480V - 3Ø | 113 | 225 | 125 | 14,000 | #4 ~ 1/0 |
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| 120 | |
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| KG3300 | 240V - 1Ø | 275 |
| 300 |
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| 400 |
| 18,000 | 250 ~ 500 |
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| 375 | |
MQP100GM | KG3350 | 208V - 3Ø | 347 | 350 | 1 | Aluminum | |||||
MQP100IV | KG3300 | 240V - 3Ø | 301 |
| 300 |
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| FG3150 | 480V - 3Ø | 150 | 225 | 150 | 14,000 | #4 ~ 1/0 |
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| 120 | |
| KG3350 | 240V - 1Ø | 313 |
| 350 |
| 250 ~ 500 | 1 |
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| 400 |
| 18,000 |
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| 375 | |
MQP125IV | KG3400 | 208V - 3Ø | 399 | 400 | 3/0 ~ 250 | 2 | Aluminum | ||||
KG3350 | 240V - 3Ø | 346 |
| 350 |
| 250 ~ 500 | 1 | Lugs |
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| JG3225 | 480V - 3Ø | 173 | 250 | 175 | 14,000 | #4 ~ 350 |
| 275 | ||
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NOTES:
1.Refer to National Electric Code (NEC) for specific conductor sizes based on current and temperature ratings.
2.Lug sizes are given for standard circuit breaker setup. All lugs listed are made of aluminum and are compatible with both aluminum and copper conductors.
CONTINUED ON NEXT PAGE
INDUSTRIAL GENERATOR SETS — APPLICATION & INSTALLATION MANUAL — REV. #4 (09/07/07) — PAGE 83
