Atlas Copco QAS 25 ID T4F Small Mobile Diesel Generator
QAS 25 ID T4F
The Atlas Copco QAS 25 ID T4F generator is prime power, multi-voltage, sound attenuated, mobile generators. It is powered by an Isuzu Tier 4 Final, liquid-cooled, four-cylinder diesel engine.
FEATURES & BENEFITS
STANDARD FEATURES
- Compact, sound attenuated, corrosion resistant enclosure with single point lifting and 110% fluid containment
- Available as a skid mounted unit with forklift pockets, or on a single axle trailer
- Heavy Duty alternator with AREP excitation and marine grade protection
- DeepSea controller
- Single side servicing with long run filters and 500-hour service intervals
- Isuzu 4LE engine w/EGR& DOC after-treatment and limited 5-year warranty
- Identical enclosures and maintenance points between both models
- Emergency Stop
- Remote Start / Stop
BENEFITS
- Extremely durable and environmentally sensitive designed to be used for everything from the oil patch to special event power
- Versatility, giving you the flexibility to match your machine to the correct application
- Start-up power for the most demanding sites with 300% over load starting capabilites
- Reliable and intuitive controls for ease of use and diagnostic capabilities
- Reduced total cost of ownership with easy access for mechanics
- Proven engine platform with high reliability, a simple maintenance free Diesel Oxidization Catalyst onlyafter treatment
- Reduces stock of service kits and inventory of parts withrental ROI kept in mind
- External, recessed emergency stop for increased safety
- Allows connection as a critical back-up unit via a 2 wire dry contact connection in the distribution panel
TECHNICAL DATA
| Performance | Units | QAS 25 JD |
| Frequency | Hz | 60 |
| Rated prime power 3ø | kW/kVA | 20/25 |
| Rated standby power 3ø | kW/kVA | 22/28 |
| 3ø Power factor | 0.8 | |
| 3ø Voltage in 480V switch position (series | V | 480Y / 277 |
| Amp capacity @480V | A | 30 |
| 3ø Voltage in 240-208V switch position (p | V | 240YY / 139-208YY |
| Rated Prime Power @ 240V 3Ø | A | 20/25 |
| Amp capacity @240V | A | 60 |
| Rated Prime Power @ 2080V 3Ø | A | 18/23 |
| Amp capacity @208V | A | 63 |
| Rated prime power 1ø | kW/kVA | 13/13 |
| 1ø Power factor | 1 | |
| 1ø Voltage in 120-240V switch position (Zi | V | 240 / 120 |
| Amp Capacity @240V | A | 54 |
| Amp Capacity @120V | A | 54 x 2 |
| Alternator (4 Pole, 12 Wire) | Leroy Somer | LSA 40 M5 |
| Excitation system | AREP (auxiliary winding) | |
| Digital Automatic Voltage Regulator (+/- 0.25%) | Leroy Somer | D350 |
| Insulation | Class H | |
| Main Breaker - Shunt Trip | A | 63 |
| Power Distribution – Terminal Board | 5 Wire (L1, L2, L3, N, Ground) | |
| Terminal Board Connections | Bare Wire Terminals | |
| Maximum Terminal Cable Size | 350MCM | |
| Convenience Receptacles | 2 x NEMA 5-20R & 2 x 125/250V 50A CS6364 | |
| Engine | Units | QAS 25 JD |
| Model | 4LE2T | |
| US EPA Family | MSZXL02.2ZTB | |
| US EPA Tier | Tier 4 Final | |
| Displacement | L | 2.2 |
| Cylinders | # | 4 |
| Continuous engine output | HP (kW) | 31.5 (23.5) |
| Gross engine power output | HP (kW) | 40 (30) |
| Rated Speed | RPM | 1800 |
| Engine control | ECU | |
| Aspiration | Turbocharged | |
| Engine oil capacity | US gal | 1.9 (7.2) |
| Engine coolant capacity | US gal | 3 (11.4) |
| Max. ambient temperature (@Sea Level) | °F (°C) | 122(50) |
| Min. starting temperature | °F (°C) | 14(-10) |
| Electrical system (Negative ground) | V | 12 |
| Engine alternator output | A | 50 |
| Battery Capacity (Cold Cranking Amps) | A | 685 |
| Sound Pressure Level @ 23’(7 m) @ 75% Load | dB(A) | 67 |
| Fuel System | Units | QAS 25 JD |
| Fuel Consumption @ 25% load | Gal/hr (L/hr) | 0.71 (2.69) |
| Fuel Consumption @ 50% load | Gal/hr (L/hr) | 1.02 (3.86) |
| Fuel Consumption @ 75% load | Gal/hr (L/hr) | 1.40 (5.30) |
| Fuel Consumption @ 100% load | Gal/hr (L/hr) | 1.63 (6.17) |
| Fuel Type | Ultra-Low Sulfur Diesel ONLY | |
| Fuel Tank Capacity | Gal/hr (L/hr) | 75 (284) |
| Fuel Autonomy @ 75% load | Hr | 48.2 |
Applications & Use Cases
During the mining process, heavy-duty machinery such as excavators, drillers, cranes, and conveyor belts operate continuously, consuming substantial amounts of electricity to power their demanding operations. Whether the mining operation involves open-pit extraction, underground tunneling, or mineral processing, a reliable and robust power source is essential to maintain productivity and prevent costly downtime. In such challenging environments, Atlas Copco's QAS 25 diesel generator stands out as the optimal power solution due to its exceptional portability, rugged durability, and ability to perform efficiently even in the most remote and extreme mining locations.
By choosing the Atlas Copco QAS 25 diesel generator, mining operations can enhance efficiency, reduce logistical challenges, and maintain uninterrupted power supply—key factors in maximizing productivity and minimizing operational costs in the mining industry.
Events
Outdoor events with big tents, lighting and all sorts of machinery running from vendors will require power from a mobile generator. Atlas Copco’s QAS 25, 45 or 70 diesel generators are a great fit for events as they are silent, compact and towable. There are also convenience receptacles as standard to use in single phase 120V outlets, California style 240V outlets, or Camlocks as an option.
Construction
During construction at remote sites, the power supply from a mobile diesel generator is essential. Because our QAS 25, 45, and 70 models are mobile and compact, construction crews rely on them for power during the whole project due to its reliability and transportability.
In the construction industry, particularly at remote and off-grid job sites, a stable and efficient power supply is critical to keeping operations running smoothly. Heavy machinery, lighting systems, welding equipment, and temporary facilities all require consistent electricity to ensure productivity and safety. Since grid power is often unavailable in such locations, mobile diesel generators become the backbone of the project’s energy needs. Atlas Copco’s QAS 25, 45, and 70 models stand out as the preferred choice for construction crews, thanks to their exceptional mobility, compact design, and unwavering reliability—qualities that make them indispensable from groundbreaking to project completion.
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