Natural Gas Generators
Generator sets are the heart of any onsite power system. Cummins NPower spark-ignited (stoichiometric) natural gas/dual fuel engine generator sets are available in sizes ranging from 125 kW to 880 kW. These are suited to applications where onsite fuel storage is restricted, a continuous supply of natural gas is readily available, and/or there are local environmental considerations that lend preference to gaseous powered equipment.
Our Natural Gas Generator sets are built with Cummins natural gas or dual fuel engines, alternators and PowerCommand™ controls. Our generator sets are the result of integrated design and manufacturing intended to meet your requirements for reliability, power quality, rated performance, and efficient operation.
Cummins NPower spark-ignited generator sets are designed for both standby and prime power applications for both 50 and 60Hz markets. We also offer a full range of accessories to customize our products to meet your exact needs. 
For more information pertaining to this product line please e-mail us.
Current Lead Time [Updated 4.18.12]:
NPower NG Product
2012 EPA SI NSPS Products
- 60 Hz Prime and Cont. Rating kW (KVA) are N/A
- Consult factory for engine data sheets
- Engine Performance Curve is TBD
| 60 Hz Standby Rating kW (KVA) |
Engine Model Number |
Model Number Spec Sheet |
Emissions Status |
| 175 (218) | GTA855 CC | GFBA CC | Compliant Capable |
| 205 (256) | GTA855 CC | GFBB CC | Compliant Capable |
| 250 (312) | GTA885e | GFBC Cert | Certified |
| 300 (375) | GTA19 CC | GFEA CC | Compliant Capable |
| 350 (437) | KTA19SLB | GFEB Cert | Certified |
| 450 (562) | GTA28 CC | GFGA CC | Compliant Capable |
| 500 (625) | GTA38 CC | GFJB CC | Compliant Capable |
| 550 (688) | GTA38 CC | GFJC CC | Compliant Capable |
| 600 (750) | GTA50 CC | GFLA CC | Compliant Capable |
| 650 (812) | GTA50 CC | GFLB CC | Compliant Capable |
| 725 (906) | GTA50 CC | GFLC CC | Compliant Capable |
Non Regulated Product- Non EPA SI NSPS
- 60 Hz Prime and Cont. Rating kW (KVA) and TBD
- Consult factory for engine data sheets
- Engine Performance Curve is TBD
- Emissions sheets are TBD
| 60 Hz Standby Rating kW (KVA) |
Engine Model Number |
Model Number Spec Sheet |
| 125 (156) | GTA8.3 G | GFAC |
| 230 (288) | GTA855 G | GFBC |
| 315 (393) | GTA19 G | GFEA |
| 330 (412) | GTA19 G | GFEB |
| 485 (606) | GTA28 G | GFGA |
| 580 (725) | GTA38 G | GFJA |
| 635 (793) | GTA38 G | GFJB |
| 690 (882) | GTA38 G | GFJC |
| 760 (950) | GTA50 G | GFLA |
| 815 (1018) | GTA50 G | GFLB |
| 895 (1118) | GTA50 G | GFLC |
Genset Drawing Index
- Consult factory for remote cooled
- Consult factory for heat exchanger cooled
| Respective Models | Open Unit | Enclosed F001 | Enclosed Level 1.0/2.0 |
Electronic Schematics PCC 2300 |
Electronic Schematics PCC 3300 |
| GFBA, GFBB | GFBA - BB 01 | GFBA - BB 02 | GFBA - BB 03 | consult factory | consult factory |
| GFBC | GFBC 01 | GFBC 02 | GFBC 03 | GFBC 2300 | GFBC 3300 |
| GFEA, | GFEA 01 | GFEA 02 | GFEA 03 | consult factory | consult factory |
| GFEB | GFEB 01 | GFEB 02 | GFEB 03 | GFEB 2300 | GFEB 3300 |
| GFGA | GFGA 01 | GFGA 02 | GFGA 03 | consult factory | consult factory |
| GFJB, GFJC | GFJB - JC 01 | GFJB - JC 02 | GFJB - JC 03 | consult factory | consult factory |
| GFLB, GFLC | GFLB - LC 01 | GFLB - LC 02 | GFLB - LC 03 | consult factory | consult factory |
Spare Parts List Emergency Standby Genset Yearly Maintenance
International Support Plan
Parts Listing
| Models GFBA, GFBB, GFBC |
Models GFDA |
Models GFEA, GFEB |
Models GFGA |
Models GFJA, GFJB, GFJC |
Models GFCA, GFLB, GFLC |
| Gas GTA855 | Gas GTA14 | Gas GTA19 | Gas GTA28 | Gas GTA38 | Gas GTA50 |


