Three-phase generators are the standard for commercial and industrial standby power. Compared to single-phase, they deliver higher power per unit conductor cross-section, better motor-starting performance, and broader compatibility with HVAC, elevators, and process loads. Most commercial gensets above 30 kW are three-phase reconnectable.
21 models in this category.
Need help selecting a three-phase backup generators?
Our application engineers help size, spec, and source backup power for commercial, industrial, and mission-critical sites.
60 kW stationary diesel standby generator with John Deere engine. Made-in-USA commercial diesel unit with DSE controller and Stamford or Marathon alternator.
300 kW gaseous-fueled commercial standby generator. Kohler/Rehlko 300REZXC large industrial gaseous unit for major facilities, paralleling applications, and campus power. Note: the 300 kW Kohler gas genset is sold as the 300REZXC, not as 'KG300'.
400 kW gaseous-fueled commercial standby generator. Kohler/Rehlko 400REZXB — the flagship of Kohler's industrial gaseous lineup for large facilities and paralleling arrays. Note: the 400 kW Kohler gas genset is sold as the 400REZXB, not as 'KG400'.
100 kW gaseous-fueled commercial standby generator. Upper-mid-range industrial gaseous unit for larger commercial facilities on natural gas or propane.
60 kW gaseous-fueled commercial standby generator with Kohler 6.2L engine, EPA Subpart JJJJ certified for stationary emergency. Specs, service intervals, common failure modes, and compatible transfer switches.
25 kVA (20 kW prime) portable diesel generator. Quiet WhisperWatt Super-Silent construction workhorse for rental fleets, job sites, and temporary power.
Tier 4 Final3-phaseconstructionrental-fleet
M
MQ Power
New
MQ Power DCA-300 WhisperWatt
264 kW standby · Diesel · Liquid-cooled
300 kVA (240 kW prime) portable diesel generator. Large WhisperWatt for major construction, events, and emergency commercial power.
Tier 4 Final3-phaseconstruction-majorrental-fleet
M
MQ Power
New
MQ Power DCA-70 WhisperWatt
62 kW standby · Diesel · Liquid-cooled
70 kVA (56 kW prime) portable diesel generator. Quiet WhisperWatt Super-Silent for large construction sites, commercial events, and emergency temporary power.