Atlas Copco WEDA S08N | Portable Submersible Sludge Pump — 1 HP, 115V 1-Phase, 65 GPM, 2" Discharge

When a job site needs more lift and more flow than the entry-level S04N can deliver — but the operator still wants the convenience of plug it into a 115V outlet and walk away — the Atlas Copco WEDA S08N is the next step up. At 1 HP (0.7 kW) and pushing fluid to 50 ft of head at up to 65 gpm, the S08N handles thickened water, light slurry, and 1-inch solids out of pits, tanks, and basins that the smaller pump simply can't reach.

Where Operators Reach for the S08N

The S08N earns its keep on jobs where the fluid is dirty, the lift is taller than typical, and there isn't three-phase power on site:

• Basement and crawl-space dewatering after flooding — water mixed with insulation fibers, drywall mud, and sediment
• Light construction sumps deeper than 35 ft — where the 33 ft head of the S04N isn't enough margin
• Wastewater bypass on smaller residential or commercial lift stations
• Aquaculture and pond maintenance — fish farms, lagoons, decorative ponds with sludge buildup
• Industrial floor drains at food processing, dairy, and beverage plants — washdown water with organic load
• Vault and manhole cleanout — utility vaults, valve chambers, communications vaults
• Light mining and aggregate work — gravel washing operations, sediment ponds
• Rental fleets — one of the most-requested 115V sludge pumps in the rental market

How It Compares in the WEDA Sludge Family

The S08N occupies a specific niche: same plug-and-play 115V convenience as the S04N, with roughly 50% more lift. If your application needs more than 65 gpm or you need to push slurry above 50 ft of vertical lift, step up to the S30N (220V or 460V 3-phase). For thinner water without much solid load, look at the drainage WEDA D-series instead.

Technical Profile

Engineering Notes

The S08N runs the same WEDA Sludge architecture as its smaller and larger siblings:

• Vortex impeller in wear-resistant high-chrome cast-iron alloy — passes 1-inch solids without choking
• Double mechanical seal in stainless cartridge with oil-bath barrier between the seals
• Aluminum-alloy outer housing for corrosion resistance and a manageable carry weight
• Thermal motor protection built into the windings — automatic shutdown and restart on overtemp
• Dry-running tolerance from the heat-dissipating motor jacket — the S08N won't fail immediately if the sump empties
• 33 ft submersion depth rating — works for deeper pits and shafts than typical 115V pumps

A Note on Cable and Plugs

The S08N ships with 33 feet of integrated submersible cable terminated for North American 115V service. For installs where the run from outlet to sump exceeds 33 ft, use a heavy-gauge extension (10 AWG for runs under 50 ft, 8 AWG beyond) to avoid voltage drop and nuisance thermal trips. Float switches and level controllers wire into the motor's integrated terminal — no separate control panel needed.

What Makes WEDA Different

The WEDA pump line is built on three engineering principles that show up in every model: modular sealing matched to the application (so you only carry the protection level you need), aluminum alloy bodies that resist corrosion without the weight penalty of cast iron, and built-in motor protection that doesn't require an external control panel. The S08N inherits all three.

SKU 8162173100 · WEDA S08N · 115V 1-Phase 60 Hz · 2" NPT discharge · 1" solids · UL listed · supported by the Atlas Copco North American service network.