SIMOTICS 1LE0 series IE3 Low-voltage Motor Siemens China
§§ Overview
Cast iron motor
Al motor
SIMOTICS 1LE0 series of 3 phase asynchronous motors is Totally Enclosed Fan Cooled (TEFC) with IP55 environmental protection, and applicable for general purpose use. These motors are designed and manufactured in accordance with ISO, IEC standards, GB standards.
The 1LE0 series motor is designed for constant or adjustable speed with continuous duty operation (S1) over a speed range.
§§ Features of Siemens 1LE0 series
• Frame material: grey cast iron or aluminum alloy.
• Standard color: stone grey (RAL 7030).
• Rated power output: 0.55kW~315kW at 50Hz.
• Available in 2, 4, 6, 8 pole motor (0.75kW and up) with efficiency grade 3. according to GB18613-2020 and efficiency class IE3 (50Hz) according to IEC 60034-30.
• Optimized compact style construction.
• Standard mounting construction according to IEC 60034-7: IM B3, IM B5, IM B35 and etc.
• All motors are designed to IP55 degree of protection (IEC 60034-5) .
• Re-greasing devices for FS1) 280 ~ 355 as standard, and for FS100 ~ 250 as option.
• Reinforced bearings for increased cantilever forces for FS100 ~ 355 as option.
• Winding protections with PTC, PT100 and PT1000 as option.
• Terminal box on top, and cable entry on right side (viewed from driven end). Variable location of connection boxes and cable entries as option.
• Insulation system is designed for temperature class 155 (F). At rated output with line-fed operation, the motors can be used in temperature class130 (B).
• Self ventilated motors with radial-flow fans (cooling method IC 411 according to IEC 60034-6) as standard, forced air cool with external separately driven fans as option.
• For cast iron motor, FS 80 motor don't have eyebolt, FS 90 ~ 355 all motors have 2 eyebolts. Aluminum housing motors, FS80~90 don't have eyebolt, FS100 ~ 160 have integrated casteyebolts.
§§ Environmental
• Degrees of motor protection IP55 (IEC 60034-5).
• Altitude shall not exceed 1000 m above sea-level (IEC 60034-1).
• Allowed air temperature between -20 ºC and 40 ºC (IEC 60034-1).
• Permitted relative humidity:
-20 ºC ≤ T ≤ 20 ºC:100 %
20 ºC < T ≤ 30 ºC:95 %
30 ºC < T ≤ 40 ºC:55 %
• For higher coolant temperatures and / or site altitudes higher than 1000 m above sea level, the specified motor output must be reduced by using the factor kHT. The results in an admissible output (Padm) of the motor:
Padm = Prated • kHT
§§ Reference standards
§§ Noise levels
Noise levels for mains-fed operation
The noise levels are measured in accordance with DIN EN ISO 1680 in a dead room. It is specified as the A-valued measuring-surface sound pressure level Lpfa in dB (A). This is the spatial mean value of the sound pressure levels measured on the measuring surface. The measuring surface is a cube 1 m away from the motor surface. The sound power level is also specified as LWA in dB (A). The following specified values are only valid for totally enclosed fan cooling (cooling method: IC411) motor with no load at 50 Hz with no load, and the tolerance is +3 dB. While motor operating 60 Hz with no load, the values are approximately +4 dB (A) higher.
§§ Vibration
1LE0 rotors are dynamically balanced to severity grade A using a half key.
§§ Nameplate
Audited Supplier 
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