Tsurumi HSZ2.4S & HSZ2.75S 240V Auto Submersible Pumps
Tsurumi HSZ2.4S and HSZ2.75S 240V automatic submersible pumps drain water containing sand, solids and debris from construction sites and other demanding drainage areas. Float-switch control starts and stops the pump as water levels change, reducing the need for manual switching.
Key Features
- Automatic float-switch operation helps prevent dry running and reduces unnecessary power use.
- Built-in shaft-mounted agitator helps keep settled solids suspended.
- Urethane semi-vortex impeller and abrasion-resistant wear parts handle demanding drainage work.
- Dual inside mechanical seal with silicon carbide faces helps protect the motor.
- Patented Oil Lifter lubricates the seal faces.
- Optional V-ring seal helps protect the mechanical seal from abrasive particles.
- 50mm (2-inch) discharge connection.
Choose Your Model
- HSZ2.4S: 0.4kW motor, maximum flow 3.33 litres/second, maximum head 12 metres, dry weight excluding cable 11.3kg.
- HSZ2.75S: 0.75kW motor, maximum flow 3.83 litres/second, maximum head 18 metres, dry weight excluding cable 16.4kg.
Shared Specifications
- Operation: automatic with float switch.
- Power supply: 240V, single phase.
- Starting method: capacitor run.
- Discharge bore: 50mm.
- Solids passage: 7mm.
Maximum flow and maximum head are separate performance limits, not simultaneous operating figures. Choose the model to suit your required flow and pumping height.



