Grundfos 99910582 - WEG 256TC | Motor | TEFC | Energy Efficient

GrundfosSKU: 99910582

Price:
Sale price$5,451.00
Delivery date to be confirmed on Sales Order
or Call for most up to date lead times. (781) 281-8905

Description

Grundfos — World's Largest Pump Manufacturer · Bjerringbro, Denmark
WEG 256TC · Grundfos Accessory / Spare Part / Control
ACC20HP575V3.0-Phase60 HzIE3 / NEMA PremiumTEFC

The Grundfos 99910582 (WEG 256TC) is a Grundfos Accessory / Spare Part / Control. Genuine Grundfos accessory, control component, spare part, or sensor. Rated 575V, 3.0-Phase, 60 Hz.

Power
20HP
Voltage
575V
Phase
3.0-Phase
Frequency
60 Hz
Grundfos
World's largest pump manufacturer — engineering and manufacturing in 17 countries since 1945
Industrial Grade
IE3 / NEMA Premium motor — reduces operating cost over service life
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 — WEG 256TC
Series: ACC
Model Code: WEG 256TC
Technical Specifications
Model Number 99910582
Product Series ACC
Series Description Grundfos Accessory / Spare Part / Control
Power 20HP
Voltage 575V
Phase 3.0-Phase
Frequency 60 Hz
Motor Speed 3515rpm
Full Load Current 18.2A
Motor Type WEG
Motor Efficiency Class IE3 / NEMA Premium
Motor Efficiency IE3 91,0%
Insulation Class F
Protection Class (IP) TEFC
Max Ambient Temperature 104°F
Min Ambient Temperature -4°F
Important Notices
Electrical Verify supply voltage, phase, and frequency match nameplate before installation: 575V, 3.0-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 — WEG 256TC
✓ 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.
Approvals for motor CC
Bearing 1 Product name:WEG 256TC
Bearing insulation type N-end N
Breakdown torque 2.9
Built-in motor protection NONE
Cable gland entry Knock out
Cooling IC 411
Cos phi 1/2 0.81
Diameter 1.62 in
Enclosure class (IEC 34-5) IP55
Flange size for motor 256TC
Frequency 60 Hz
Full load SF current 20.9 A
IE Eff. Class IE3 / NEMA Premium
IE efficiency IE3 91,0%
IE Efficiency class IE3 / NEMA Premium
Insulation F
Insulation class (IEC 85) F
IP Class IP55
Length of shaft end 4 in
Locked-rotor torque 2
Minimum ambient temperature -4°F
Moment of inertia 0.872 lb ft²
Motor 256TC
Motor efficiency at 1/2 load 0.9
Motor efficiency at 3/4 load 0.91
Motor efficiency at full load 1 0.91
Motor type WEG
n rpm F
Net weight 233.0 lb
Number of poles 2
P2 kW 20 HP
Phase 3
Power factor 1 0.91
R1 ohm 0.145 ohm
Range of ambient temperature -4 .. 104 °F
Rated current 18.2 A
Rated full-load torque 1 29.87 ft lb
Rated power - P2 20 HP
Rated speed 3515 rpm
Rated voltage 3 x 575 V
Service factor 1.15
Shaft Product name:WEG 256TC
Shaft diameter 1.62 in
Starting current 6.6
Thermal protec NONE
Tropic protec NO
Type RAL 9005
Winding 2 PHASE 2
Winding 3 PHASE 3

Motor Curves

Dimensional Drawing

DWiring Diagram

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