Roll over image to zoom
SKU: 92955207
Grundfos SE.56H.280.4.50D.100 Cast Iron High-Head Wastewater Pump for Sewage Transfer with Open S-tube Impeller
Australia-Wide
(08) 9240 2992
Official Grundfos
Peace of Mind
Product Overview
Centralized sewage transfer systems requiring consistent discharge pressure utilize the SE.56H.280.4.50D.100 for heavy-duty infrastructure service. This cast iron submersible pump is intended for municipal and industrial wastewater applications, specifically managing raw sewage and untreated effluents containing solids. It provides reliable performance in permanent installations with liquid temperatures ranging from 0°C to +40°C.
The pump achieves a maximum head of 46 m and a maximum flow of 9180 L/min when powered by a 28 kW 4-pole motor. Drawing 60.5 Amps on a 415 V supply, the unit utilizes an internal cooling jacket for temperature control. This setup facilitates stable hydraulic output for wastewater infrastructure requiring consistent transfer between stations.
Hydraulic handling is characterized by an Open S-tube impeller with a 363.2 mm diameter and a 41 mm free passage for managing untreated wastewater containing solids. The nominal duty head is 26.85 m. Equipped with a 200 mm inlet and a 100 mm outlet, the design supports high-volume transfer through high-pressure discharge piping in municipal collection systems.
Structural durability is provided by an EN-GJL-250 cast iron pump housing and motor casing, using a double SiC/SiC mechanical shaft seal for redundant motor protection. Operational safety is ensured by integrated PTO sensors, moisture switches, and leakage sensors for comprehensive monitoring. The unit includes a 10-metre S1BC4N8-F EMC power cable and an IP68 rated enclosure.
FEATURES
- Open S-tube impeller with 363.2 mm diameter and 41 mm passage for managing solids.
- EN-GJL-250 cast iron pump housing and motor casing for durability in permanent service.
- Double mechanical shaft seal with SiC/SiC primary faces and Silicon Carbide/Carbon secondary barrier.
- Integrated PTO sensors, moisture switches, and leakage sensors for motor protection and monitoring.
- Internal cooling jacket system for thermal management in both submerged and dry pit environments.
- Supplied with a 10-metre S1BC4N8-F EMC power cable for reliable connection in transfer stations.
- IP68 enclosure suitable for installation depths up to 30 metres and 10 bar operating pressure.
- Compatible with the Grundfos DN100 auto-coupling system (96090994) for simplified maintenance access.
IMPORTANT: Bulk freight charges apply. Please contact us for a freight quote before ordering.
SPECIFICATIONS
| Max Flow | 9180 L/Min |
| Max Head | 46 m |
| Power | 28 kW / 415v |
| Rated Current | 60.5 Amps |
| Suitable For | Municipal Wastewater |
| Body Material | Cast Iron |
| Liquid Temperature | 0°C to +40°C |
| Inlet Size | 200 mm |
| Outlet Size | 100 mm |
| Warranty | 24 Months |
Warranty & Returns
All products supplied by Foundation Pumps are covered by a minimum 12-month warranty unless otherwise stated. Some brands may offer longer manufacturer warranties. Warranty covers manufacturing defects, faulty materials and workmanship under normal use.
- Products must be installed correctly and in accordance with the manufacturer’s instructions.
- Warranty does not cover incorrect installation, misuse, dry running, normal wear and tear, unauthorised repairs or damage caused by external factors.
- Proof of purchase, photos, videos and installation details may be requested when assessing a warranty claim.
- The customer is responsible for returning the product to Foundation Pumps or the nominated service centre unless otherwise agreed.
- Removal, reinstallation, labour and associated site costs are generally the customer’s responsibility unless required under Australian Consumer Law.
- Change-of-mind returns may be accepted within 30 days provided the product is unused, uninstalled and returned in its original packaging.
- Customers are responsible for return freight costs for change-of-mind returns.
- Restocking fees may apply to special-order, bulky or non-stocked products.
- Used, installed or specially ordered products may not be eligible for change-of-mind returns.
- If a product arrives damaged or faulty, please contact Foundation Pumps as soon as possible so we can assist with the appropriate repair, replacement or refund.
Your rights under Australian Consumer Law are not affected.
How much fluid throughput does this pump move under full load?
At full operating capacity, the Grundfos SE.56H.280.4.50D.100 moves up to 9180 L/Min to keep liquid levels controlled during peak inflow.
What peak dynamic elevation does this pump develop?
Under rated operating head, the SE.56H.280.4.50D.100 can lift water to a maximum dynamic head of approximately 46 m through vertical risers.
What electrical voltage and motor kilowatt output drive this unit?
Running on 415 V three-phase power supplies, the SE-56H-280-4-50D-100 is driven by a 28 kW motor rated at 60.5 Amps.
Which pumping tasks and system installations are ideal for this unit?
Routine operational tasks matching the SE 56H 280 4 50D 100 encompass Unscreened municipal sewage is accommodated by through a generous 41 mm spherical internal clearance across the volute across connected networks.
How does this pump connect into wet well pipework?
Installation of the SE/56H/280/4/50D/100 is streamlined using a standard auto-coupling, enabling fast docking onto existing discharge lines.
Need help choosing the right pump?
Our team of pump experts are here to help you find the perfect solution for your application.
- Free expert advice
- Pump sizing & system recommendations
- Fast response — call or email us










