250HP MARATHON 1790RPM 447/9T TEBC 460V 3PH MOTOR Y531

APPLICATIONS: Designed for inverter or vector applications where up to a 2000:1 constant torque speed range is required. Typical uses include: material handling, machine tools, conveyors, crane and hoist, metal processing, test stands, pumps, compressors, textile processing, and other industrial machinery installed in dusty or dirty environments where cast iron construction is required.

FEATURES:

• Blue Chip quality, cast iron frame and brackets
• MAX GUARD® Class H insulation system
• Constant torque operation from 0 to base speed on vector drive, including TEFC
• Constant HP operation to twice base speed (143-256 frame); 1.5 times base (all others)
• Optimized for operation with IGBT inverter
• Normally closed thermostats (one per phase, class F)
• Continuous duty at 40°C ambient
• 1.0 Service Factor (“B” rise on TEBC motors)
• Patented “fracket” design (TEBC enclosure)
• Ball Bearings (roller bearing available 360 Frame & larger)
• Encoder provisions included on opposite drive end
• UL Recognized, CSA Certified, and CE Mark
• Three year warranty
• Separate power supply required for blower motor