HP1 hp through 300 hp Speed 3600, 1800, 1200 RPM Voltage 460V, 575V Frequency 60 Hz.

Electrical Features

• Designed to meet NEMA MG-1, MG-13 and IEEE 841
• Stock available in 460V and 575V; other voltages available upon request
• Premium efficiency; meets or exceeds the requirements of EPACT ’92 and Canadian Federal Efficiency Levels defined in CSA C390-93; Full load efficiency of all ratings is certified under the EEV Program of the CSA
• UL recognized Class F non-hygroscopic insulation system with HPE™ (High Pulse Endurance) index, heavy heat resistance enameled copper wire insures longer winding life and reliability
• CSA certified for Class 1, Division II, Group B, C and D with Temperature Code T3C
• Class B temperature rise, 80°C rise by resistance method at 1.0 S.F.; 90°C rise at 1.15 SF
• 3 Leads solderless lug terminals
• Meets GM 7E-TA specifications

Mechanical Features

• Bearing temperature rise is below 45°C for all 4P and 6P ratings; 50°C for all 2P motors
• Sound power levels are below 85 dBA providing quiet operation
• Full cast iron construction: frame, brackets, fan cover and conduit box with IP55 rated protection
• Frame provided with two threaded drain holes with drain plugs and a drilled and tapped hole for a ground lug
• Corrosion-resistant, cast iron conduit box has twice the volume required by NEMA. The conduit box is fully gasketed with NPT threaded conduit entry
• Regreaseable bearing construction with inner bearing caps prevent bearing contamination
• Non-sparking plastic or bronze fan
• All internal rotor, stator and shaft surfaces are cleaned and coated with moisture resistant varnish; Exterior is painted with zinc-chromate epoxy base with a blue finish
• Stainless steel hardware and nameplate
• Vibration will not exceed 0.08 inches per second
• Motors can be re-rated for 415, 400 and 380 volts at 50 HZ
• CSA and UL approved for Inverter Duty per NEMA MG1 Part 31, with speed range of 20:1 variable torque and 10:1 constant torque