CHT 180 Three-Phase Cast Iron Motor (15–22 kW)
CHT 180 three-phase cast iron motor — Chiaravalli's IEC frame 180 cast iron motors in the IE3 / IE4 efficiency classes, 2 / 4 / 6-pole, 15–22 kW. Cast iron casing, IP54, class F insulation, IC411 fan cooling, Δ/Y 400/690 V 50 Hz. Mounting B3, B5 or B35 — the dimension sheets give the frame 180 mounting dimensions per efficiency class.
How to pick from the table: choose the pole count for the speed you need, then the power and the efficiency class — IE3 or IE4 (we supply IE3 and above only from 0.75 kW up; IE4 where the energy saving pays). The type letter is the motor's length designation within the frame. Forced-cooling fan kits for inverter duty are available for every frame (catalogue p8).
Product Configuration
Select a row to add it to your quote
Three-phase Δ/Y 400/690 V 50 Hz; IP54, insulation class F, IC411 cooling; efficiency to IEC 60034-30 / 60034-2-1.
| Code | Type | Efficiency class | Poles | Power | Speed | Torque | Current at 400 V | Efficiency | cos φ | Efficiency at 75 % | Efficiency at 50 % | Ms / Mn | Mmax / Mn | Is / In | J0 | Weight |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
CHT 180 L6 IE3 |
L6
|
IE3
|
6
|
15 kW
|
960 r/min
|
149.2 Nm
|
30.1 A
|
91.2 %
|
0.79
|
92 %
|
90.3 %
|
2.5
|
2.8
|
7.4
|
0.2797 kg m²
|
173.0 kg
|
CHT 180 L6 IE4 |
L6
|
IE4
|
6
|
15 kW
|
975 r/min
|
147 Nm
|
29.1 A
|
92.9 %
|
0.8
|
93.2 %
|
92.8 %
|
2
|
2.1
|
8.5
|
0.3632 kg m²
|
194.0 kg
|
CHT 180 M4 IE3 |
M4
|
IE3
|
4
|
18.5 kW
|
1460 r/min
|
121 Nm
|
33.5 A
|
92.6 %
|
0.86
|
93.6 %
|
93 %
|
2.5
|
3
|
9
|
0.1553 kg m²
|
157.0 kg
|
CHT 180 M4 IE4 |
M4
|
IE4
|
4
|
18.5 kW
|
1475 r/min
|
119.83 Nm
|
33.3 A
|
94.2 %
|
0.85
|
94.4 %
|
93.6 %
|
2
|
2.3
|
9.5
|
0.2656 kg m²
|
184.0 kg
|
CHT 180 M2 IE3 |
M2
|
IE3
|
2
|
22 kW
|
2945 r/min
|
71.3 Nm
|
38.5 A
|
92.7 %
|
0.89
|
94.1 %
|
93.6 %
|
2.5
|
3
|
9
|
0.0967 kg m²
|
164.0 kg
|
CHT 180 M2 IE4 |
M2
|
IE4
|
2
|
22 kW
|
2965 r/min
|
70.9 Nm
|
38 A
|
94 %
|
0.89
|
94.2 %
|
93.8 %
|
2
|
2.3
|
9.5
|
0.1633 kg m²
|
186.0 kg
|
CHT 180 L4 IE3 |
L4
|
IE3
|
4
|
22 kW
|
1460 r/min
|
143.9 Nm
|
39.2 A
|
93 %
|
0.87
|
93.7 %
|
92.9 %
|
2.5
|
3
|
10
|
0.1943 kg m²
|
176.0 kg
|
CHT 180 L4 IE4 |
L4
|
IE4
|
4
|
22 kW
|
1475 r/min
|
142.5 Nm
|
39.5 A
|
94.5 %
|
0.85
|
94.7 %
|
93.8 %
|
2
|
2.3
|
9.5
|
0.3028 kg m²
|
206.0 kg
|
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Product Information
Reading the table
Each row is one motor of this frame size: the type letter and pole count (a 4-pole motor runs at about 1500 r/min on 50 Hz, 2-pole about 3000, 6-pole about 1000), the efficiency class, rated power, speed, rated torque, current at 400 V, efficiency and power factor. "Show starting and part-load data" adds the starting torque and current ratios (Ms/Mn, Mmax/Mn, Is/In), the rotor inertia J0 and, for IE3 / IE4 motors, the efficiency at 75 % and 50 % load.
Efficiency classes
From January 2017 the EU regulation (CE) 640/2009 requires motors of 0.75 to 375 kW with 2, 4 or 6 poles sold in the European market to be at least IE3. Nusaf supplies IE3 and above only from 0.75 kW up — IE1 motors are listed below 0.75 kW only. Efficiency figures follow IEC 60034-30 / 60034-2-1.
Fitting to a gearbox
The frame size is the IEC size the gearbox flange is specified by — a gearbox listed for "IEC 80" takes a frame 80 motor in B5 or B14. Mounting B3 (foot), B5 (flange) and B14 (face flange) dimensions are on the dimension sheets.
- Material
- Cast iron casing
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