Hoyer AC IE4 electric motors are manufactured according to the efficiency class system specified under IEC 60034-30. Their high quality, reliability and performance are well documented.
The motors are asynchronous, low voltage three-phase TEFC motors. Type HMA4 (aluminium) size 80-180 and HMC4 (cast iron) size 160-355. All cast iron and aluminium motors are equipped with quality bearings and 3xPTC in windings. Motors in size 80-200 have closed bearings greased for life. All Hoyer IE4 motors have a locked bearing in the drive end as standard.
All IE4 motors are provided with blind caps in all supply connections and are IP55 as standard, prepared for drain holes and painted C3L according to ISO 12944-5:2018 in colour RAL 9005 low gloss.
230 VD / 400 VY – Hoyer IE4 motors ≤ 3 kW
400 VD / 690 VY – Hoyer IE4 motors ≥ 3 kW
Other voltages are supplied on request.