Description
Drain excavation ditches, sump basins, and elevator shafts automatically. The Wacker Neuson PSA2 500 2in Submersible pump clears standing water without manual switch monitoring. An integrated mechanical float switch activates pump cycles upon liquid rise. The pump cannot pass solids exceeding 0.24-inch diameter without risking impeller jams.
Lightweight aluminum alloy forms the motor frame, encased in an impact-resistant synthetic rubber jacket. A semi-vortex urethane rubber impeller resists abrasive scoring from suspended concrete fines. Dual silicon carbide mechanical seals operate within an internal oil chamber for run-dry defense. The mechanical float switch mounts straight to the housing with a rigid arm. Top-discharge geometry cools motor windings.
Automatic Dewatering System Specs
Restoration technicians clear groundwater from basements without constant supervision. The mechanical float switch starts the motor when water lifts the buoyant float bulb.
- Continuous-duty 0.5-horsepower motor operates on standard single-phase 110-volt circuits
- Semi-vortex urethane impeller delivers 62 GPM maximum water discharge volume
- Mechanical float switch starts and stops pumping based on water basin levels
- Silicon carbide mechanical seals run inside an oil chamber for dry-run protection
- Top-discharge water cooling keeps motor windings safe during low water levels
- Heavy 32-foot rubber power cord includes strain relief to prevent electrical shorts
- Standard 2-inch discharge fitting attaches straight to flat contractor lay-flat hose
Electric Motor Load Telemetry
Bench testing demonstrates the motor draws 5.8 Amps across 115-volt power under a 20-foot dynamic discharge head. Pump output stabilizes at 48 GPM through 50 feet of 2-inch lay-flat hose. Motor stator temperature reaches 142°F during shallow low-water operation. Acoustic sensors record 56 dBA underwater and 63 dBA above the water line.
Jobsite Operation Mechanical Realities
You lower this pump into manholes using a dedicated steel lifting rope attached to the handle. The slender cylindrical frame fits down narrow 8-inch inspection casings. Do not lift or suspend this pump by the rubber electrical cable. Pulling the power cord pulls internal lead wires from terminals and causes shock hazards.
- Inspect the float switch arm for dried mud cakes before lowering into sumps
- Check oil bath clarity in the mechanical seal chamber once every 6 months
- Wash the exterior pump housing with clean water after pumping acidic runoff
Factory Warranty Coverage Roster
Wacker Neuson covers this submersible pump with a 2-Year limited commercial warranty. The shipping carton contains the submersible dewatering pump, float switch, 32-foot power cord, 2-inch discharge adapter, and technical service manual.
