Cummins Expands Centum™ High-Power Portfolio with QSK78 Generator Platform for Global 50Hz Mission-Critical Markets

June 18, 2026

Cummins Inc. (NYSE: CMI) has officially rolled out the QSK78-powered generator set series tailored exclusively for the global 50Hz power market, further enriching its award-winning Centum™ high-horsepower stationary generator lineup. The new high-power genset is specially optimized for data centers, large-scale hospitals, industrial parks and grid backup projects with ultra-high reliability requirements.

Built around the 78-liter V18 QSK78 heavy-duty engine platform, the generator set delivers a standby power output covering 3200kVA to 3750kVA, with a prime continuous power rating up to 3400kVA. It achieves an industry-leading 100% full load step acceptance within 10 seconds, fully complying with the strict NFPA 110 Tier 1 emergency power standard, which guarantees zero power interruption for core facilities during grid outages.

The integrated aftertreatment system meets EU Stage V and EPA Tier 4 Final emission standards simultaneously, while the optimized cooling system supports stable full-load operation under an ambient temperature of up to 50°C, adapting to high-temperature working conditions in Africa, the Middle East and Southeast Asia. All core components including the engine, alternator and PowerCommand® intelligent controller are fully self-developed and manufactured by Cummins, realizing one-stop whole-machine quality control and global unified after-sales service support.

“The launch of the QSK78 genset fills the gap in our high-power 50Hz product layout. We can now provide customers with a complete power solution ranging from small backup units to ultra-large capacity prime power equipment,” said the Global Product Director of Cummins Power Generation. “The Centum series has always focused on compact power density and long-term low total operation cost, and the QSK78 model inherits this core advantage perfectly.”

 Cummins 4BTA3.9-G13

Cummins also confirmed that the QSK78 generator set supports parallel operation of up to 32 units, which can form a large-capacity modular microgrid system together with energy storage equipment to help global clients realize stable off-grid power supply and energy transition layout.