AMA/AM1-HO High output Aluminium multi-mount and Cast Iron motors


This special range of aluminium progressive frame multi-mount and Cast Iron motors achieve higher power ranges in smaller frame sizes increasing the options availiable. They are particually suitable for applications where space is limited or a more powerful motors in smaller frame is required.

Main specifications:


All AMA-HO and AM1-HO motors are manufactured in accordance with IEC 34-1/9.

The bearings are maintenance free lubricated with lithium-based grease.

Motors are fitted with V-seals.

Windings are vacuum pressure impregnated and made of high quality insulated wire and insulation material. The impregnation is a evaporation free process, suitable for tropical climate zones.

The rotors are dynamically balanced with half key, in accordance with IEC 34-14, class N (Normal).

Mounting is availiable in B3, B5, B14S, B14L B35, B34S, B34L.


Frame sizes:

IEC size 63-250

Output range:


Protection class:

IP55, according to IEC 34-5

Insulation class:


Temperature rise:

Class B


TEFC, according to IEC 34-6

Surface painting:

Colour RAL 5010, General industrial, to IEC 721-2-1


Deep groove ball bearings, NSK


1000m above sea level

Ambient temp range:

-35̊C to 40̊C



Voltage ranges:


·220-240V / 380-420V, 50Hz (P = 100%)

·380-420V / 660-720V, 50Hz (P = 100%)


·240-265V / 420-460V, 60Hz (P = 100%)

·420-460V / 720-800V, 60Hz (P = 100%)


·265-290V / 460-500V, 60Hz (P = 120%)

·460-500V / 790-870V, 60Hz (P = 120%)

Dimension Data

AMA-HO B3, B5, B14S, B14L Dimensions


Technical Data

AMA-HO 2 Pole Technical data



AMA-HO 4 Pole Technical data


Additional information

Connection Diagram



AMA Mounting arrangements



Motor exploded diagram



Voltage and Frequency


We make all efforts to better our products. Versions, technical data and figures could be changed therefore. They are not binding before written confirmation.