SQUARE D ALTIVAR CLASS 8839 EFDDG4VT E-FLEX VARIABLE SPEED DRIVE 460V C USED

Product Specifications:

• Model Number: 8839 EFDDG4VT

• Input Voltage: 460V

• Series: Altivar E-Flex (Class 8839)

• Enclosure Type: NEMA Type 1

• Drive Type: Variable Torque

• Control Options: Hand-Off-Auto switch, manual speed potentiometer

• Display: Graphic screen with plain-text readout and navigation wheel

• Indicators: Red (Power On), Green (AFC Run), Yellow (AFC Fault), Yellow (Bypass)

• Included Protection: 5% line reactor, thermal and electronic overload protection

• Bypass Options: Integral motor isolation and bypass contactors

Key Features:

• Energy Savings: Automatically adjusts motor speed to match load demand, reducing power consumption

• Seismic Certified: Qualified to IBC and ASCE 7 standards for earthquake-prone zones

• Built-In Bypass Control: Ensures uninterrupted operation in the event of a drive fault

• User-Friendly Interface: Intuitive controls including a plain-text display, speed dial, and fault indication lights

• Advanced Motor Protection: Overcurrent, phase loss, and overload safeguards built in

• Flexible Integration: Suitable for both new installations and retrofit applications

Applications:

• HVAC Systems – Ideal for managing air handlers, return/supply fans, and rooftop units

• Water Circulation – Suitable for chilled and hot water pump control

• Ventilation Systems – Effective speed regulation for exhaust and booster fans

• Cooling Towers – Improves control and energy efficiency of fan and pump operations

• Process Control – Useful in automation requiring variable motor speed with bypass capability