CSA Certified for Class 1, Division II, Groups B, C and D, with Temperature Code T3C
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
Any TECO-Westinghouse Motor Co. (TWMC) motor direct coupled to a reciprocating compressor and operated without first having a system analysis performed will have a voided warranty. Upon request, TWMC will provide a shaft profile drawing (includes shaft geometry, mass elastic data, shaft torsional stiffness, weights, and inertias) and a current pulsation study (crank effort data must be provided by others), in order to allow parties other than TWMC to perform the required system analysis. Contact TWMC for pricing of these adders.
MAX-E2/841™ NEMA Premium Efficiency – Inverter, Severe Duty, TEFC
Totally Enclosed Fan Cooled
HP: 1 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