For single office trailers with standard HVAC and lighting. Multiquip WhisperWatt DCA25 — 20 kW prime rating, ≤60 dBA noise level, integrated 24-hour fuel tank with containment. The quietest unit in the lineup.
| Specification | Details |
|---|---|
| Reference Model | Multiquip WhisperWatt DCA25SSIU4F |
| Prime Rating | 20 kW / 25 kVA |
| Standby Rating | 22 kW / 27.5 kVA |
| Voltage | 120/240V single-phase; 208-480V 3-phase (switchable) |
| Fuel | Diesel |
| Noise Level | ≤60 dBA at full load |
| Fuel Tank | Integrated 24-hour tank with containment |
| Configuration | Towable, single or tandem axle |
| Best For | Single office trailer with standard HVAC and lighting |
Need a generator for your site?
The 20-25 kW tier is built for standard single-trailer deployments where the electrical load is HVAC, lighting, outlets, and computers.
Standard construction office trailer with 1-2 window or rooftop AC units, fluorescent or LED lighting, 4-6 outlets for computers and printers. This is the most common generator deployment on smaller job sites.
Security checkpoint or gate trailer with HVAC, lighting, monitors, and communication equipment. Low overall draw makes the 20-25 kW tier ideal — the generator runs at 40-50% capacity, maximizing fuel economy.
Office trailer placed on-site during building renovation or remodel. Temporary power needs with a defined project timeline. Generator delivered at mobilization, picked up at demobilization.
If you are running breakroom appliances (microwave, coffee pot, full-size fridge) in addition to HVAC, consider stepping up to the 30-40 kW tier. A microwave alone draws 1,200-1,800 watts. Combined with HVAC cycling and a full-size refrigerator, you will push the 20-25 kW unit above the recommended 70-80% capacity threshold.
