Atlas Copco · QAS Series

Atlas Copco QAS 410

361 kW standby / 328 kW prime · Diesel · Liquid-cooled

410 kVA (328 kW prime) portable diesel generator. Swedish-engineered QAS series with Scania engine.

Atlas Copco Atlas Copco QAS 410 generator — specifications and details
Standby power
361 kW / 328 kW prime
Voltage options
277/480V
Frequency / Phase
60 Hz · 3-phase
Engine
Scania DC13 085A · 12.7L
EPA / Emissions
Tier 4 Final
Alternator
Leroy Somer LSA 46.3 L11
Commercialrental-fleettemporary-power
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Overview#

The Atlas Copco QAS 410 SD is a 410 kVA portable diesel generator powered by a Scania DC13 085A 12.7L inline-6 engine. Delivering 328 kW prime / 361 kW standby, it is the only Scania-powered unit in the QAS range, bridging the gap between the mid-range FPT-powered models and the flagship Volvo-powered QAS 625 and QAS 700. The QAS series' sound-attenuated enclosure keeps noise 5-8 dB lower than most competitors in the 300+ kW portable class. EPA Tier 4 Final and CARB compliant, it is legal for operation throughout California without restriction.

Technical highlights#

The QAS 410 pairs the Scania DC13 heavy-duty platform with a Leroy Somer LSA 46.3 L11 alternator featuring Class H insulation and voltage regulation within ±0.25%. The engine runs at 1800 RPM with fuel consumption of 16.96 gph at 75% load. With a 412-gallon integral diesel tank and a 16.6-gallon DEF tank, the unit delivers roughly 24 hours of continuous runtime at typical loads — a full day between refueling. Three-phase 277/480V output at 60 Hz serves large commercial and industrial electrical systems directly. The Scania DC13 is a proven heavy-duty platform used in marine, industrial, and trucking applications worldwide, with strong parts availability through Scania's global dealer network.

Our service experience#

Atlas Copco's Swedish engineering is well matched with the Scania DC13 — both companies share Scandinavian engineering DNA, and the QAS 410 reflects that in its build quality and fuel efficiency. Where Atlas Copco falls short in Northern California is after-sale service: unreturned calls, $311+/hr travel charges, and parts delays are the most common complaints from fleet operators. The Scania engine adds a layer of complexity because Scania's dealer network in NorCal is thinner than John Deere's or Volvo's. OnPoint provides a local Bay Area and NorCal service alternative — responsive scheduling, transparent pricing, and technicians experienced with heavy-duty diesel platforms. If you own or rent QAS 410 units in Northern California, we are here to keep them running.

Engineering specifications

Fuel system & runtime

Integral fuel tank
412 gal
Fuel use @ 75% load
16.96 GPH
DEF tank
16.6 gal

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Estimate runtime for the Atlas Copco QAS 410

Adjust load percent and tank size to estimate runtime. Pre-filled with this model's spec where available.

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Estimated runtime

21.1 hours(0.9 days)

Fuel consumption ≈ 19.49 GPH at 75% load. Estimate based on industry-typical 1800 RPM standby curves (≈0.07 GPH/kW at full load). Actual consumption varies by engine, ambient temperature, fuel quality, and tuning.

Service intervals

Manufacturer-recommended intervals for the Atlas Copco QAS 410 under standby duty. Field intervals may differ based on load profile, ambient conditions, and fuel quality.

Oil & filter
Every 500 hours or 12 months
Air filter
Every 500 hours
Fuel filter
Every 500 hours
Major overhaul
≈ 20,000 hours

Common failure modes

What we've seen fail on this platform. Use as a service-planning reference, not a diagnostic — actual failure modes depend heavily on duty cycle and maintenance history.

ComponentSymptomTypical hoursSeverity
Fuel filterRestricted fuel flow, reduced power, hard starting500+minor
BatteryFailed to start, slow crank, low voltage warning4,380+minor
Coolant hoseWeeping coolant at hose connections, low coolant alarm5,000+minor

Frequently Asked Questions

What is the prime and standby rating of the Atlas Copco QAS 410?
The QAS 410 delivers 328 kW prime power and 361 kW standby power. It is the only Scania-powered model in the QAS lineup, bridging the gap between the John Deere-powered QAS 330 and the Volvo-powered QAS 625.
What engine does the Atlas Copco QAS 410 use?
The QAS 410 is powered by a Scania DC13 085A 12.7-liter inline-6 diesel engine running at 1,800 RPM. The DC13 is a proven heavy-duty platform used across construction, marine, and industrial applications worldwide with strong parts availability through Scania's global dealer network.
What are the service intervals for the QAS 410?
Oil changes are due every 500 hours or 12 months, whichever comes first. Air filter and fuel filter replacement intervals are 500 hours. Major engine overhaul is specified at 20,000 hours. The 16.6-gallon DEF tank requires periodic refill for Tier 4 Final SCR compliance.
Is the Atlas Copco QAS 410 EPA Tier 4 Final compliant?
Yes. The QAS 410 is EPA Tier 4 Final and CARB compliant, legal for operation throughout California. The Scania DC13 085A uses SCR aftertreatment with a 16.6-gallon DEF tank integrated into the unit.
How does the QAS 410 compare to the QAS 625?
The QAS 625 steps up to a Volvo TWD1672GE 16.1-liter engine delivering 500 kW prime — 52% more than the QAS 410. The QAS 625 uses a 707-gallon fuel tank and is mounted on a tri-axle trailer at 26,000 lbs. The QAS 410 is smaller and more maneuverable.
What fuel does the Atlas Copco QAS 410 use?
The QAS 410 runs on diesel with DEF required for SCR aftertreatment. The 412-gallon integral diesel tank provides approximately 24 hours of runtime at 75% load (16.96 gal/hr). A 16.6-gallon DEF tank is integrated into the unit.
Who services Atlas Copco generators in Northern California?
OnPoint Generators provides local service and maintenance for Atlas Copco QAS units including the Scania-powered QAS 410 across the Bay Area and Northern California. Our technicians are experienced with heavy-duty diesel platforms and Leroy Somer alternators.

More in the QAS Series

Atlas Copco's portable diesel workhorse — 22 to 616 kW, Tier 4 Final, Leroy Somer alternators, 5–8 dB quieter than the competition.

View all 14models in this series →

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