Briggs & Stratton PowerProtect 10kW with 200A ATS (040684) vs Cummins QuietConnect RS13A 13kW
The Cummins QuietConnect RS13A 13kW is the more powerful unit: 13,000 running watts against 10,000 — about 23% more capacity for the Cummins QuietConnect RS13A 13kW. The Cummins QuietConnect RS13A 13kW is the quieter of the two (65 dBA vs 67 dBA — though manufacturers measure noise at different loads and distances). Warranty favors the Briggs & Stratton PowerProtect 10kW with 200A ATS (040684): 6 years vs 5.
| Briggs & Stratton PowerProtect 10kW with 200A ATS (040684) | Cummins QuietConnect RS13A 13kW | |
|---|---|---|
| Type | home-standby | home-standby |
| Fuel | natural-gas, propane | natural-gas, propane |
| Running watts (gas / LP for standby) | 10000 W | 13000 W |
| Running watts (propane) | 10000 W | 13000 W |
| Running watts (natural gas) | 8000 W | 13000 W |
| Noise level | 67 dBA | 65 dBA |
| Output voltage | 120/240V | 120/240V |
| Automatic transfer switch included | Yes | No |
| Main-line circuit breaker | 50 A | 100 A |
| Start type | automatic | automatic |
| Engine | Briggs & Stratton Vanguard M35 | Cummins QSJ999G |
| Engine displacement | 570 cc | 999 cc |
| NG use at half load | 111 ft³/h | 154 ft³/h |
| Propane use at half load | 1.2 gal/h | 1.4 gal/h |
| Weight | 272 lb | 479 lb |
| Warranty | 6 yr | 5 yr |
Frequently asked questions
Which is more powerful, the Briggs & Stratton PowerProtect 10kW with 200A ATS (040684) or the Cummins QuietConnect RS13A 13kW?
The Cummins QuietConnect RS13A 13kW, at 13,000 running watts on its best fuel versus 10,000 W. Remember that dual-fuel and natural-gas ratings are lower than gasoline ratings — the comparison table shows the published per-fuel figures.
Which costs less to run, the Briggs & Stratton PowerProtect 10kW with 200A ATS (040684) or the Cummins QuietConnect RS13A 13kW?
Estimated fuel for 24 hours at about 50% load: $40 on natural gas for the Briggs & Stratton PowerProtect 10kW with 200A ATS (040684) vs $55 on natural gas for the Cummins QuietConnect RS13A 13kW, at national average prices. These are spec-sheet-derived estimates — the assumptions are on the methodology page, and different fuels make this a cost comparison, not an efficiency ranking.
Where do these specifications come from?
Every record on BackupAtlas is hand-curated from manufacturer documentation and spec sheets, and each generator page links to its source document.