444THFN8384

features

• MAX GUARDВ® Class H insulation system
• Constant torque operation from 0 to base speed on vector drive, including TEFC (On Volts/Hertz drives, TEFC motors are limited to 20:1 constant torque
• Constant HP operation to twice base speed (143-256 frame)
• 1.5 times base (all others)
• Optimized for operation with IGBT inverter (NEMA Design A)
• Separate power supply required for blower motor
• Normally closed thermostats (one per phase, class F)
• Continuous duty at 40В°C ambient
• Blue Chip quality, cast iron frame and brackets
• Patented “fracket” design (TEBC enclosure), Roller Bearing
• Separate 230/460 volt power supply required for 1 HP blower motor