Electric Motor Frame Sizes and IEC Frame Table

This table shows the 25 different IEC frame sizes in the HEM Motor range and the power and speed of the motors available in each frame. The values are taken from the technical data of the products on our website. Each power links to the corresponding product page.

Why does the frame code matter?

The number in the IEC frame code gives the height of the shaft above the foot base in mm: on a 132 frame, the shaft centre is 132 mm above the base. When replacing an old motor, choosing the same frame code means the foot holes and shaft height match, so the motor base does not need to be modified.

Electric motor frame code and shaft height (H) diagram — The number in the frame code is the height of the shaft centre from the floor: 132 mm for a 132 frame.

What the table shows

Within the same frame, power decreases as speed decreases. For example, the 90L frame holds a 2.2 kW motor at 3000 rpm, 1.5 kW at 1500 rpm and 1.1 kW at 1000 rpm.
Our aluminium frame motors are available up to 11 kW and our cast iron frame motors from 0.55 kW; both frame options are available for the powers in between.
The frame letter (S, M, L) indicates a different frame length at the same height; L is longer than M.

IEC frame	Shaft height	Frame material	3000 rpm	1500 rpm	1000 rpm
63M	63 mm	Aluminium	0.25 kW: Aluminium	–	–
71M	71 mm	Aluminium / Cast iron	0.37 kW: Aluminium 0.55 kW: Aluminium · Cast iron	0.25 kW: Aluminium 0.37 kW: Aluminium	0.25 kW: Aluminium
80M	80 mm	Aluminium / Cast iron	0.75 kW: Aluminium · Cast iron 1.1 kW: Aluminium · Cast iron	0.55 kW: Aluminium · Cast iron 0.75 kW: Aluminium · Cast iron	0.37 kW: Aluminium 0.55 kW: Aluminium · Cast iron
90L	90 mm	Aluminium / Cast iron	2.2 kW: Aluminium · Cast iron	1.5 kW: Aluminium · Cast iron	1.1 kW: Aluminium · Cast iron
90S	90 mm	Aluminium / Cast iron	1.5 kW: Aluminium · Cast iron	1.1 kW: Aluminium · Cast iron	0.75 kW: Aluminium · Cast iron
100L	100 mm	Aluminium / Cast iron	3 kW: Aluminium · Cast iron	2.2 kW: Aluminium · Cast iron 3 kW: Aluminium · Cast iron	1.5 kW: Aluminium · Cast iron
112M	112 mm	Aluminium / Cast iron	4 kW: Aluminium · Cast iron	4 kW: Aluminium · Cast iron	2.2 kW: Aluminium · Cast iron
132M	132 mm	Aluminium / Cast iron	–	7.5 kW: Aluminium · Cast iron	4 kW: Aluminium · Cast iron 5.5 kW: Aluminium · Cast iron
132S	132 mm	Aluminium / Cast iron	5.5 kW: Aluminium · Cast iron 7.5 kW: Aluminium · Cast iron	5.5 kW: Aluminium · Cast iron	3 kW: Aluminium · Cast iron
160L	160 mm	Aluminium / Cast iron	18.5 kW: Cast iron	15 kW: Cast iron	11 kW: Aluminium · Cast iron
160M	160 mm	Aluminium / Cast iron	11 kW: Aluminium · Cast iron 15 kW: Cast iron	11 kW: Aluminium · Cast iron	7.5 kW: Aluminium · Cast iron
180L	180 mm	Cast iron	–	22 kW: Cast iron	15 kW: Cast iron
180M	180 mm	Cast iron	22 kW: Cast iron	18.5 kW: Cast iron	–
200L	200 mm	Cast iron	30 kW: Cast iron 37 kW: Cast iron	30 kW: Cast iron	18.5 kW: Cast iron 22 kW: Cast iron
225M	225 mm	Cast iron	45 kW: Cast iron	45 kW: Cast iron	30 kW: Cast iron
225S	225 mm	Cast iron	–	37 kW: Cast iron	–
250M	250 mm	Cast iron	55 kW: Cast iron	55 kW: Cast iron	37 kW: Cast iron
280M	280 mm	Cast iron	90 kW: Cast iron	90 kW: Cast iron	55 kW: Cast iron
280S	280 mm	Cast iron	75 kW: Cast iron	75 kW: Cast iron	45 kW: Cast iron
315L	315 mm	Cast iron	160 kW: Cast iron 185 kW: Cast iron 200 kW: Cast iron	160 kW: Cast iron 185 kW: Cast iron 200 kW: Cast iron	110 kW: Cast iron 132 kW: Cast iron
315M	315 mm	Cast iron	132 kW: Cast iron	132 kW: Cast iron	90 kW: Cast iron
315S	315 mm	Cast iron	110 kW: Cast iron	110 kW: Cast iron	75 kW: Cast iron
355L	355 mm	Cast iron	315 kW: Cast iron 355 kW: Cast iron	315 kW: Cast iron 355 kW: Cast iron	250 kW: Cast iron 315 kW: Cast iron
355M	355 mm	Cast iron	250 kW: Cast iron	250 kW: Cast iron	160 kW: Cast iron 185 kW: Cast iron 200 kW: Cast iron
400L		Cast iron	–	–	355 kW: Cast iron

If you do not know your old motor’s frame

The frame code is written on the motor nameplate. If the nameplate is unreadable, simply measure the height of the shaft from the base. If you prefer, send us a photo of the nameplate or the motor, and we will determine the right frame together. +90 532 345 49 86

Related: Current Table · Torque Table

HEM Motor Models Related to This Article

The cards show example models related to the topic. A suitable motor is not chosen by power alone: compare speed, voltage, mounting, shaft and connection dimensions on the product page; if unsure, send a photo of the existing motor’s nameplate on WhatsApp.

63M2-2

0.25 kW · 3000 rpm

Aluminium frame · IEC 63M
2730 rpm · IP55
Mounting: B3 foot; flange (B5/B14/B35) depending on frame — confirmed with the order

US$66.68 (€59.51)

View product

71M1-2

0.37 kW · 3000 rpm

Aluminium frame · IEC 71M
2750 rpm · IP55
Mounting: B3 foot; flange (B5/B14/B35) depending on frame — confirmed with the order

US$73.96 (€66.00)

View product

71M2-2

0.55 kW · 3000 rpm

Aluminium frame · IEC 71M
2750 rpm · IP55
Mounting: B3 foot; flange (B5/B14/B35) depending on frame — confirmed with the order

US$78.01 (€69.61)

View product

Electric Motor Frame Sizes: IEC Frame – Power Table

Why does the frame code matter?

What the table shows

If you do not know your old motor’s frame

HEM Motor Models Related to This Article

0.25 kW · 3000 rpm

0.37 kW · 3000 rpm

0.55 kW · 3000 rpm

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