• Power density and flexibility —Your power system can be configured specifically for your application, ensuring that you get the exact power you specify.
  • Robust transient performance —Recover from large load swings quickly, leading to less power disruption and a more stable power supply for consistent, predictable operations.
  • Cummins heavy-duty engine —Rugged four-cycle industrial diesel delivers reliable power, low emissions and fast response to load changes.
  • Alternator —Several alternator sizes offer selectable motor starting capability with low reactance windings, low waveform distortion with non-linear loads and fault-clearing, short-circuit capability.
  • EPA Tier 2/Tier 4 compliance and certification options —Can meet standards for Tier 2 up to Tier 4. Cummins is the only standby generator set manufacturer capable of shipping a complete Tier 4-compliant solution directly from the factory.
  • Sustainable alternative fuel capability —As part of the Cummins dual commitment to decarbonization and emissions reduction, the Centum Series C1250D6E/C1500D6E is approved for use with paraffinic fuels (EN15940), including hydrotreated vegetable oil (HVO), which offers the potential to reduce greenhouse gas (GHG) emissions by 40-90% over the total lifecycle of the generator set without sacrificing performance.
  • Control system —PowerCommand®  digital control is standard equipment and provides total genset system integration, including automatic remote starting/stopping, precise frequency and voltage regulation, alarm and status message display, AmpSentry™ protective relay, output metering and auto-shutdown.
  • Cooling system —Instead of aftercoolers, the C1250D6E / C1500D6E features charged air-cooled intake manifolds that require less standard repair time (SRT). Standard and enhanced integral set-mounted radiator systems, designed and tested for rated ambient temperatures, simplify facility design requirements for rejected heat.
  • Warranty and service —Backed by a 3-year comprehensive warranty and worldwide distributor network.
  • Easy access to parts —All Cummins part distribution centers (DCs) are linked by a fully integrated system, enabling you to search for parts not only in the local inventory, but anywhere in the network.
  • NFPA —The generator set accepts full rated load in a single step in accordance with NFPA 110 for Level 1 systems.
  • Uptime compliant —Meets the requirements of a Tier III and IV data center site by being rated to run for unlimited hours of operation when loaded to ‘N’ demand for the engine generator set.
  • Data Center Continuous (DCC) —Applicable for supplying power continuously to a constant or varying electrical load for unlimited hours in a data center application.
  • Permanent magnet generator (PMG) —Excitation system offers enhanced motor starting and fault-clearing, short-circuit capability.
  • Optional advanced features —Options include i-Relay, resistance temperature detectors (RTDs), low coolant sensor and electronic restriction indicators which actively communicate the health of critical components to the main control panel.
SKU: C1250D6E / C1500D6E Category:


Centum Series generators represent a significant shift in the Cummins approach to power system design, offering next-level flexibility, efficiency and sustainability. The Centum C1250D6E / C1500D6E efficiently delivers the power you need in a smaller footprint, lowering both installation and fuel costs.



Additional information


Agriculture, Commercial, Data Centers, Healthcare, Industrial, Standby Power, Telecom, Water Treatment

Fuel Type


Frequency (Hz)



EPA Tier 2