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With flow capacity reaching 50400 L/min and maximum head of 8.4 m, the Grundfos S3.120.600.500.8.66E.C.432.G.N.D.513GPA 8-pole submersible sewage pump handles wastewater, process water and unscreened raw sewage across Australia where extremely high flow rates at low heads are required. The Variant C cooling jacket enables continuous submerged operation at depths up to 20 m as part of the Range 66 series.
A 50 kW motor (P2) operating at 726 rpm from a 415 V three-phase supply draws 98 A with 89% efficiency at full load and 91% at 3/4 load. The 432 mm ductile iron impeller delivers the specified performance, with DN600 outlet and DN120 inlet connections carrying a PN10 pressure rating for this configuration.
A 3-channel ductile iron impeller with 120 mm free passage forms the hydraulic core, with the impeller diameter and triple-channel configuration matched to the E lifting height class requirements. The impeller geometry determines the head and flow characteristics for this Range 66 model, with the pump housing constructed from ductile cast iron and CE and EAC markings present on the nameplate.
Ductile cast iron construction with IP68 enclosure and Class F insulation provides submerged durability, with primary silicon carbide and secondary silicon carbide-carbon shaft seals preventing liquid ingress. Integrated moisture sensors are fitted as standard, and the 15 m H07RN-F AT cable supports Star/Delta starting.
FEATURES
- Eight-pole motor design operating at 726 rpm for low-speed high-volume transfer applications
- Triple-channel ductile iron impeller providing stable hydraulic performance across the operating range
- 120 mm free passage through the impeller and volute for solids and unscreened sewage particulates
- Ductile cast iron pump housing providing enhanced material strength for demanding wastewater applications
- DN600 outlet connection and DN120 inlet connection with PN10 pressure rating
- IP68 enclosure protection for continuous submerged operation at depths up to 20 metres
- Variant C integrated cooling jacket surrounding the motor stator for heat dissipation during operation
- CE and EAC certification markings present on the product nameplate as specified by the manufacturer
IMPORTANT: Bulk freight charges apply. Please contact us for a freight quote before ordering.
FAQs
General Product FAQs
1. How do I choose the right pump for my setup?
Selecting the correct pump depends on your required flow (L/min), total head (vertical lift + friction loss), and power source. If you're unsure, contact our team and we’ll size the right system for you.
2. Do you offer support with system design or setup?
Yes — we provide expert advice to help you choose, install, and optimise your pump system. Whether it's a simple setup or a custom solution, we’re here to help.
3. Do you offer complete pump solutions or just products?
We don’t just sell pumps — we provide complete solutions. From accessories and control systems to full packaged setups, we can supply everything required to get your system running efficiently.
Shipping & Availability
1. Do you offer Australia-wide shipping?
Yes — we ship across Australia. Bulk or oversized orders may incur additional freight charges otherwise we offer free shipping over $100*
2. How long does delivery take?
Orders are typically shipped within 1–2 business days, with delivery taking approximately 2–7 days depending on your location.
3. What courier or freight companies do you use?
We work with a range of trusted carriers including Australia Post, StarTrack, TNT, and other national freight providers depending on the size and location of your order. This allows us to ensure fast, reliable delivery across Australia, including regional and remote areas.
Warranty & Support
1. Do your pumps come with a warranty?
Yes — all products are backed by manufacturer warranties. Warranty periods vary depending on the brand and product type.
2. What support do you offer after purchase?
We provide ongoing support including:
- Installation advice
- Troubleshooting
- Spare parts supply
- System upgrades
3. What is the warranty process if something goes wrong?
If you experience an issue, simply contact our team with your order details and a description of the problem. We’ll guide you through troubleshooting and, if required, arrange repair, replacement, or manufacturer assessment in line with warranty terms.
Why choose Foundation Pumps?
1. Why choose Foundation Pumps over other suppliers?
We focus on supplying proven, high-quality pump solutions backed by real industry knowledge. Unlike general resellers, we understand how these systems perform in the field and provide honest, practical advice to ensure you get the right solution the first time.
2. Do you offer expert advice before and after purchase?
Yes — we support you at every stage, from selecting the right pump through to installation and ongoing use. Our team is available to assist with sizing, troubleshooting, and system optimisation whenever you need it.
3. Do you stock trusted brands and quality products?
We carefully select and supply pumps from reputable manufacturers known for reliability and performance. Our range includes both industry-leading brands and high-value alternatives that meet Australian standards and conditions.
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