Frequency (Hz)50, 60;    Fuel Type: Diesel
Rated for kW kVA
Standby 1141-1500 1426-1875
Prime 1028-1280 1285-1600


Maintaining their outstanding reputation for high performance power even in the harshest conditions, the latest KTA range is jacket water aftercooled design. Its inbuilt step timing control system ensures optimum engine timing at all combinations of load and ambient temperature, improving cold starting and reducing light load fuel consumption to greatly enhance engine efficiency.

Technical Specification

Generator Model Hz Prime kVA / kW Standby kVA / kW RPM Fuel Type Certification Spec Sheet
KTA50-G3 50 1285 / 1028 1426 / 1141 1500 Diesel Non-Regulated KTA50-G3.pdf
KTA50-G3 60 1404 / 1123 1578 / 1262 1800 Diesel Non-Regulated KTA50-G3 (2).pdf
KTA50-G8 50 1400 / 1120 1675 / 1340 1500 Diesel Non-Regulated KTA50-G8.pdf
KTA50-G9 60 1600 / 1280 1875 / 1500 1800 Diesel Non-Regulated KTA50-G9.pdf


Aftercooler Large capacity aftercoolers are supplied with three different configuration types, which are dependent on the rating used: Jacket Water Aftercooled (JWAC), One Pump Two Loop (1P2L), or Two Pump Two Loop (2P2L). This provides cooler, denser intake air for more complete combustion and reduced engine stresses for longer life and low exhaust emissions.

Cooling System The JWAC aftercoolers share cooling water with the high temperature jacket water cooling system. There are no separate aftercooler connections that the customer needs to make. The 1P2L aftercoolers utilize coolant drawn from the jacket water system, but operate at a lower temperature than the jacket water, due to a separate, lower temperature thermostat. Two water pump employs separate impellers on a common shaft to deliver coolant to the two different systems. Similar to the 2P2L system, two different radiators are used to cool the engine jacket water and the aftercooler water. The 2P2L utilizes two completely separate water pumps. The engine jacket pump is engine mounted and is driven from the rear of the gear housing. The aftercooler water pump is customer selectable and can be provided mounted on the front of the gear cover. Cummins provides conventional water inlet and outlet connections for the jacket system. Aftercooler water pump inlet and aftercooler core outlet connections are provided for customer use and ease of plumbing on the aftercooler system.

Lubrication Large capacity integral gear driven pump provides pressure lubrication to all bearings and provides supply for piston cooling. Cummins supplied large capacity oil pans are recommended for Prime and Continuous Power applications.

Pistons Pistons are dual Ni-resist, aluminum alloy, ground and shaped to compensate for thermal expansion which assures a precise fit at all normal operating temperatures. Oil cooled for rapid heat dissipation. Two compression rings and one oil ring. Utilizes offset piston pin for reduced susceptibility to liner cavitation.

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