Roll over image to zoom
SKU: 96810462
Grundfos S1.100.125.300.4.62M Cast Iron 30 kW Sewage Pump for Lift Stations with 1-Channel Impeller
Australia-Wide
(08) 9240 2992
Official Grundfos
Peace of Mind
Product Overview
Municipal networks requiring reliable submerged service for untreated wastewater collection rely on the Grundfos S1.100.125.300.4.62M.S.314.G.N.D.513 for permanent installations. This cast iron unit manages raw sewage and municipal wastewater containing solids in centralized collection sumps. The engineering provides consistent hydraulic efficiency in infrastructure environments with liquid temperatures from 0°C to +40°C.
The unit achieves a maximum head of 41.7 m and a maximum flow rate of 7440 L/min while powered by a 30 kW 4-pole motor. Operating on a 415 V supply with 64 Amps, stable motor operation is maintained during high-capacity transfer cycles. This configuration provides consistent wastewater transfer within municipal collection sumps.
The hydraulic system uses a 1-channel cast iron impeller with a 314 mm actual diameter and a 100 mm free passage for managing untreated wastewater. A DN 125 outlet with a PN 10 pressure rating supports the hydraulic output, facilitating efficient transfer across utility grids. This setup focuses on reducing clogging risks while moving contaminated wastewater through discharge piping.
Structural integrity is provided by an EN-GJL-250 cast iron pump housing and motor casing with double mechanical SIC/SIC-CARBON seals. Protection is managed by integrated moisture sensors and thermal switches for comprehensive motor health monitoring in permanent stations. The unit is supplied with a 15-metre H07RN-F power cable and is compatible with the Grundfos DN125 auto-coupling system (96782145).
FEATURES
- 1-Channel cast iron impeller with a 314 mm diameter and 100 mm passage for handling solids.
- EN-GJL-250 cast iron pump housing and motor casing for structural durability in networks.
- Double mechanical shaft seal with SIC primary seal and SIC-CARBON secondary barrier protection.
- Integrated moisture sensors and leakage sensors for proactive motor protection and monitoring.
- IP68 enclosure suitable for installation depths up to 20 metres with a PN 10 rated DN125 outlet.
- Supplied with a 15-metre H07RN-F power cable for reliable electrical connection in wet wells.
- Optimized for municipal wastewater collection and transfer applications in centralized stations.
- Compatible with the Grundfos DN125 auto-coupling system (96782145) for simplified maintenance access.
IMPORTANT: Bulk freight charges apply. Please contact us for a freight quote before ordering.
SPECIFICATIONS
| Max Flow | 7440 L/Min |
| Max Head | 41.7 m |
| Power | 30 kW / 415v |
| Rated Current | 64 Amps |
| Suitable For | Municipal Wastewater |
| Body Material | Cast Iron |
| Liquid Temperature | 0°C to +40°C |
| Outlet Size | 125 mm |
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.
Which electrical power draw, operational voltage feed, and full-load amperage support this submersible motor?
Driven by a 30 kW submerged motor, Grundfos S1.100.125.300.4.62M utilizes a three-phase 415 V power connection drawing a steady current of 64 Amps.
Which wastewater temperature boundaries, discharge pressure ratings, and installation depths are specified?
Designed for wet well submersion, S1.100.125.300.4.62M operates within a fluid thermal boundary of 0°C to 40°C and sustains pressure ratings up to PN 10 at depths up to 20 metres.
During heavy municipal transfer cycles, what peak delivery head can this submersible sewage assembly attain?
During heavy municipal transfer cycles, S1-100-125-300-4-62M attains an operational dynamic head of approximately 41.7 m.
During demanding municipal transfer cycles, what maximum fluid volume passes through this submersible assembly?
During demanding municipal transfer cycles, S1 100 125 300 4 62M maintains a maximum volumetric throughput of 7440 L/Min.
What specific alloys and protective coatings protect the external structure and rotating components from wear?
In abrasive wastewater environments, S1/100/125/300/4/62M combines an EN-GJL-250 cast iron outer housing with an aerodynamically balanced cast iron runner.
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











