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SKU: 92955270
Grundfos SE.56L.280.6.50D.350 Cast Iron Low-Head Wastewater Pump for Groundwater Drainage with Open S-tube Impeller
Australia-Wide
(08) 9240 2992
Official Grundfos
Peace of Mind
Product Overview
Groundwater drainage stations and municipal flood mitigation sumps rely on the high-capacity transfer capabilities of the SE.56L.280.6.50D.350 for large-scale collection. This cast iron unit is intended for municipal and industrial wastewater applications where untreated effluents containing solids must be moved reliably. It is suitable for infrastructure environments where liquid temperatures range from 0°C to +40°C.
The pump achieves a maximum flow rate of 25380 L/min and a maximum head of 20 m powered by a 28 kW motor drawing 59.5 Amps. Operating on a three-phase 415 V supply, the motor utilizes an internal cooling jacket for thermal safety. This integrated setup provides stable temperature management during high-capacity drainage cycles in wastewater infrastructure.
The hydraulic handling is characterized by an Open S-tube impeller with a 411.2 mm actual diameter and a 105 mm free passage for managing untreated wastewater containing solids. The nominal duty head is 10.46 m. This design features a 350 mm inlet and a 300 mm outlet with DIN flanges, supporting high-volume transfer while reducing clogging risks in municipal collection systems.
Structural durability is provided by an EN-GJL-250 cast iron motor casing and pump housing, featuring double mechanical SiC/SiC shaft seals. Safety is monitored by integrated PTO sensors, moisture switches, and leakage sensors for proactive motor protection and monitoring. The unit is supplied with a 10-metre S1BC4N8-F EMC power cable and an IP68 enclosure for depths up to 30 metres.
FEATURES
- Open S-tube impeller with 411.2 mm diameter and 105 mm passage for managing raw effluents.
- Cast iron EN-GJL-250 pump housing and motor casing for structural integrity in utility networks.
- 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 facilitating thermal management in submerged or dry pit environments.
- Supplied with a 10-metre S1BC4N8-F EMC power cable for reliable connection in drainage sumps.
- IP68 enclosure suitable for installation depths up to 30 metres and 5 bar operating pressure.
- Compatible with the Grundfos DN300 auto-coupling system (96255839) for simplified maintenance access.
IMPORTANT: Bulk freight charges apply. Please contact us for a freight quote before ordering.
SPECIFICATIONS
| Max Flow | 25380 L/Min |
| Max Head | 20 m |
| Power | 28 kW / 415v |
| Rated Current | 59.5 Amps |
| Suitable For | Flood Control |
| Body Material | Cast Iron |
| Liquid Temperature | 0°C to +40°C |
| Inlet Size | 350 mm |
| Outlet Size | 300 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.
What electrical connection and motor power run this pump?
Powered by a dedicated 28 kW motor, the Grundfos SE.56L.280.6.50D.350 connects to 415 V three-phase mains power with a rated current draw of 59.5 Amps.
How does the internal runner prevent debris from lodging inside?
Solid debris and suspended particles up to 105 mm clear the casing of the SE.56L.280.6.50D.350 smoothly via its advanced S-tube runner.
What pipe connection or mounting system does this pump use?
Connecting via a standard auto-coupling, the SE-56L-280-6-50D-350 aligns cleanly with system plumbing headers.
How much water flow can this pump deliver per minute?
Peak fluid displacement on the SE 56L 280 6 50D 350 delivers up to 25380 L/Min under rated operating conditions.
What is the maximum vertical lift capacity of this pump?
Fluid elevation through vertical risers reaches up to 20 m with the SE/56L/280/6/50D/350 under standard duty points.
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