東元IEEE-841 NEMA電機(jī)可同時(shí)滿足防爆和變頻使用場(chǎng)合。
防爆等級(jí)：CSA Certified for Class I, Division II, Groups B, C, D; Class II, Div. 2, Groups F & G.
變頻范圍：VT=3~60HZ, CT=6~60HZ. (VT=variable torque 變轉(zhuǎn)矩; CT=constant torque 恒轉(zhuǎn)矩)
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
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QQ:2568841715
