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Description
Grundfos — World's Largest Pump Manufacturer · Bjerringbro, Denmark
99553328 · Grundfos Accessory / Spare Part / Control
The Grundfos 99553328 (KWM.56.865.12.T.60.910.M.46) is a Grundfos Accessory / Spare Part / Control. Genuine Grundfos accessory, control component, spare part, or sensor. Nominal performance: 50900US gpm at 53.48ft. Rated 460V, 3-Phase, 60 Hz. Applications include Drinking water treatment, Stormwater control, Municipal wastewater treatment and more.
Power
872HP
Voltage
460V
Phase
3-Phase
Max Flow
50900US gpm
Max Head
53.48ft
Max Pressure
145.04psi
Grundfos
World's largest pump manufacturer — engineering and manufacturing in 17 countries since 1945
Industrial Grade
Built and tested to IEC and NEMA standards
Authorized Distributor
Genuine Grundfos product — full manufacturer warranty coverage
Expert Support
Technical help available — call (781) 281-8905 or chat
Why This Product
Genuine Grundfos Part
OEM component engineered and manufactured to Grundfos specifications. Maintains pump performance and warranty coverage.
Full Traceability
Genuine Grundfos parts carry manufacturer traceability from production through delivery. No counterfeit risk.
Authorized Source
PumpStop is an authorized Grundfos distributor. All parts are genuine — not aftermarket, not surplus.
Confirm Compatibility
Always verify part number against your pump model number and serial number before ordering. Contact PumpStop for parts identification assistance.
Technical Support Available
PumpStop technical team can identify correct parts from pump nameplate data, serial number, or model code. Call (781) 281-8905 or chat.
Contact for Availability
Parts availability varies. Contact PumpStop to confirm stock, lead time, and pricing before placing an order.
Model Information — 99553328
Series: ACC
Impeller Material: Ductile iron
Housing Material: Cast iron
Technical Specifications
| Model Number | 99553328 |
| Product Series | ACC |
| Series Description | Grundfos Accessory / Spare Part / Control |
| Power | 872HP |
| Voltage | 460V |
| Phase | 3-Phase |
| Frequency | 60 Hz |
| Motor Speed | 585rpm |
| Motor Protection | PTO/PT100 |
| Motor Efficiency | 92.9% |
| Insulation Class | F |
| Protection Class (IP) | IP68 |
| Nominal Flow | 50900US gpm |
| Nominal Head | 53.48ft |
| Max Operating Pressure | 145.04psi |
| Max Ambient Temperature | 104°F |
| Impeller Material | Ductile iron |
| Housing Material | Cast iron |
| Approvals / Certifications | CE, EAC |
Applications
Drinking water treatment
Stormwater control
Municipal wastewater treatment
Rotor & spray irrigation
Ground water transfer
Livestock & Wildlife Watering
Pivot & Lateral Irrigation
Frost protection
Solar boosting and water supply solutions
Controls and digital groundwater management
Solar controls and digital water management
Municipal solar solutions
Agriculture solar solutions
Livestock watering with solar solutions
Community solar solutions
Important Notices
| Electrical | Verify supply voltage, phase, and frequency match nameplate before installation: 460V, 3-Phase, 60 Hz. |
| Temperature limits | Do not exceed max fluid temperature per nameplate or max ambient temperature 104°F. Exceeding limits damages seals and motor insulation. |
| Dry running | Do not run dry. ACC pumps use the pumped fluid to lubricate the shaft seal. Dry running destroys the seal within seconds. Install dry-run protection on all automatic installations. |
| Maintenance | Refer to the Grundfos Installation and Operating Manual (IOM) for correct installation, commissioning, and maintenance. Contact PumpStop for documentation. |
Documentation
✓ Installation and Operating Manual (IOM) — ACC Series
✓ Product Data Sheet — 99553328
✓ Service Manual and Spare Parts List
Need the IOM, data sheet, or spare parts list? Contact PumpStop and we'll send it over.
Before You OrderConfirm model code, voltage, phase, and frequency match your installation. For sizing help, spare parts, or documentation, call (781) 281-8905 or chat with PumpStop.
- EAN
- 5713830934876
- Applications
- Wastewater
- Actual impeller diameter
- 35.8 in
- Approvals
- CE
- Breakdown torque
- 23800 Nm
- Built-in motor protection
- PTO/PT100
- Cable type
- PNCTR-S
- Cos phi 1/1
- 81.9
- Cos phi 1/2
- 66.9
- Cos phi 3/4
- 78
- Density
- 62.29 lb/ft³
- Diameter
- 35.8 in
- Enclosure class (IEC 34-5)
- IP68
- Gross weight
- 18600.0 lb
- Housing
- Cast iron
- Impeller
- DUCTILE IRON
- Insulation class (IEC 85)
- F
- Length of power cable
- 10 m
- Length of sensor cable
- 10 m
- Mains frequency
- 60 Hz
- Max starts per hour
- 10
- Max. Particle
- 115 mm
- Maximum ambient temperature
- 104 °F
- Maximum current consumption
- 1070 A
- Maximum flow
- 3930 l/s
- Maximum head
- 65.95 ft
- Maximum operating pressure
- 10 bar
- Minimum flow
- 1920 l/s
- Moisture switch
- Y
- Moment of inertia
- 12080 lb ft²
- Motor efficiency at 1/2 load
- 0.928
- Motor efficiency at 3/4 load
- 0.929
- Motor efficiency at full load 1
- 0.929
- Net weight
- 17000.0 lb
- No. of blades
- 3
- Number of poles
- 12
- Number of power cables
- 3
- Power 1
- 699.7 kW
- Power cable type
- PNCTR-S
- Power input P1
- 699.7 kW
- Product family
- KWM
- Pump housing
- Cast iron
- Rated flow
- 50900 US gpm
- Rated head
- 53.48 ft
- Rated power - P2
- 650 kW
- Rated speed
- 585 rpm
- Rated voltage
- 3 x 460 V
- Real Time
- Delivery date to be confirmed on Sales Order Update with real time availability and Net price
- Service factor
- 1.15
- Starting current
- 5360 A
- Switch
- Y
- Type
- PNCTR-S
- Type of impeller
- Open impeller
Dimensional Drawing
Wiring Diagram
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