CHT 225 Three-Phase Cast Iron Motor (30–45 kW)
CHT 225 three-phase cast iron motor — Chiaravalli's IEC frame 225 cast iron motors in the IE3 / IE4 efficiency classes, 2 / 4 / 6-pole, 30–45 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 225 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 225 M6 IE3 |
M6
|
IE3
|
6
|
30 kW
|
975 r/min
|
293.8 Nm
|
53 A
|
92.9 %
|
0.88
|
93.8 %
|
90.9 %
|
1.8
|
2.2
|
7
|
0.6706 kg m²
|
312.0 kg
|
CHT 225 M6 IE4 |
M6
|
IE4
|
6
|
30 kW
|
980 r/min
|
292.5 Nm
|
56.1 A
|
94.2 %
|
0.82
|
94.4 %
|
94 %
|
2
|
2.1
|
8.3
|
0.938 kg m²
|
348.0 kg
|
CHT 225 S4 IE3 |
S4
|
IE3
|
4
|
37 kW
|
1470 r/min
|
240.4 Nm
|
65.4 A
|
93.9 %
|
0.87
|
95.2 %
|
94.3 %
|
2.5
|
2.5
|
8
|
0.5784 kg m²
|
262.0 kg
|
CHT 225 S4 IE4 |
S4
|
IE4
|
4
|
37 kW
|
1480 r/min
|
238.85 Nm
|
66 A
|
95.2 %
|
0.85
|
95.4 %
|
94.6 %
|
2
|
2.3
|
9
|
0.7938 kg m²
|
330.0 kg
|
CHT 225 M2 IE3 |
M2
|
IE3
|
2
|
45 kW
|
2965 r/min
|
145.7 Nm
|
75.9 A
|
94 %
|
0.91
|
94.6 %
|
94.1 %
|
2.5
|
2.5
|
8.5
|
0.3437 kg m²
|
312.0 kg
|
CHT 225 M2 IE4 |
M2
|
IE4
|
2
|
45 kW
|
2975 r/min
|
144.5 Nm
|
76.8 A
|
95 %
|
0.89
|
95.2 %
|
94 %
|
2
|
2.3
|
9
|
0.3933 kg m²
|
363.0 kg
|
CHT 225 M4 IE3 |
M4
|
IE3
|
4
|
45 kW
|
1470 r/min
|
292.3 Nm
|
79.3 A
|
94.2 %
|
0.87
|
95.2 %
|
94.5 %
|
2.5
|
2.5
|
9
|
0.6531 kg m²
|
293.0 kg
|
CHT 225 M4 IE4 |
M4
|
IE4
|
4
|
45 kW
|
1480 r/min
|
290.5 Nm
|
80.1 A
|
95.4 %
|
0.85
|
95.6 %
|
95 %
|
2
|
2.3
|
9
|
0.8695 kg m²
|
370.0 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
Need help specifying this product?
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