Product Description

1LE0 Low-voltage electric siemens motor

The 1LE0 series of high efficiency 3 phase asynchronous motors with cast iron housing is Totally Enclosed Fan Cooled (TEFC) with IP55 environmental protection, and applicable for general purpose use. These motors are designed and manufactured in ccordance with ISO, IEC standards, GB standards. By switching to 1LE0 series motor, customer can save energy up to 10 %!

Features of Siemens 1LE0 series

Frame and connection box material: grey cast iron. Standard color: stone grey (RAL 7030) Available in 2, 4, 6 pole variants with efficiency grade 2.according to GB18613-2006 and efficiency class IE2 accordingto IEC 60034-30. Rated power range: 0.55 kW ~ 315 kW at 50 Hz. Optimized compact style construction. Standard mounting construction according to IEC 60034-7: IMB3, 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 KTY84-130 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 intemperature class 130 (B). Self ventilated motors with radial-flow fans (cooling method IC 411 according to IEC 60034-6) as standard, forced air cool withexternal separately driven fans as option. FS 80 ~ 90 motor donot have eyebolt; FS 100 ~ 315 all motors have 2 eyebolts, and FS 355 motor have one eyebolt fortransport.

Environmental

Degrees of motor protection IP55 (IEC 60034-5). Altitude shall not exceed 1000m 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 specifi ed motor output must bereduced by using the factor kHT. The results in an admissible output (Padm) of the motor: Padm = Prated • kHT

Factor kHT for different side altitudes and / or coolant temperature
Site altitude above see level	Site altitude above see level Coolant temperature
	< 30 °C	< 40°C	< 45°C	< 50°C	< 55°C	< 60°C
1000m	1.07	1.00	0.96	0.92	0.87	0.82
1500m	1.04	0.97	0.93	0.89	0.84	0.79
2000m	1.00	0.94	0.90	0.86	0.82	0.77
2500m	0.96	0.90	0.86	0.83	0.78	0.74
3000m	0.92	0.86	0.82	0.79	0.75	0.70
3500m	0.88	0.82	0.79	0.75	0.71	0.67
4000m	0.82	0.77	0.74	0.71	0.67	0.63

Nameplate

Mechanical design

Connection box

The connection box is located on the top of motor housing as standard, and can be rotated by 4×90º to allow for cable entry from each direction. All the connection box have 2 cable entries, one is sealed by the cable gland, and another sealed by screwed plug.

Connection boxes technical data

Frame Size	Number of terminals	Contact screw thread	Outer cable diameter (sealing range)(mm)	Cable entry size (Gland+Screwed plug)
80	6	M4	13 ~ 18	M25×1.5+M16×1.5
90	6
100	6		18 ~ 25	M32×1.5+M32×1.5
112	6
132	6
160	6	M5	22 ~ 32	M40×1.5+M40×1.5
180	6
200	6	M6	32 ~ 38	M50×1.5+M50×1.5
225	6	M8
250	6	M10	37 ~ 44	M63×1.5+M63×1.5
280	6
315	6	M12
355	6	M20	44 ~ 57	M72×2+M72×2

Construction and mounting type

Electrical design

Rated voltage

The standard insulation of the 1LE0002 inverter motor is designed such that operation is possible on the converter at mains voltage up to 460 V.

Overload times

According to IEC60034, 1LE0002 inverter motor are designed to withstand overload capacity of 1.5 times rated current for 2 minutes at rated voltage and frequency.

Insulation system

The insulation system of 1LE0002 inverter motor results in high reliability, a long service life and high resistance to stress, for example, during starting or under overload conditions.

1LE0002 inverter motor are designed for temperature class 155 (F), used in temperature class 155 (F).

Insulation strength

The insulation system of converter fed motors is subject to higher dielectric stresses than in the case of sinusoidal power supply.

The dielectric stress of the winding insulation is determined by:

the peak voltage, rise time and frequency of the impulses produced by the converter. the characteristics and the length of the connection leads between the converter and motor. the winding construction and other system parameters.

Cooling and ventilation

The 1LE0002 inverter motor is fi tted with an radial fl ow fan for cooling (cooling method IC411). For some special application, separately driven fan should be considered to be confi gurated (cooling method IC416).

The separately driven fan can be supplied already fi tted, Option code F70. When the separately driven fan is mounted, the length of the motor increase by ΔL.

Technical data table

Note: About the code of other voltage and frequency, winding protection and connection box position, please refer to Orde No. FS080-355 in page 15.

Dimension drawings

1LE0002 inverter duty motor:Frame sizes 80M to 355L

Type of construction IM B3

Type of construction IM B35

Order No. FS 080 ~ 355