Induction three-phase multispeed electric motors

The motors are designed for drive of mechanisms, which need graduated regulating of rotation speed. The motors are designed to operate with three-phase AC.

Frequency – 50 and 60 Hz
Voltage – 220-660 V (AIR 100 L4/2: 380, 400, 415, 440 V)
Protection degree of motor – IP54 (can be manufactured with IP55 on customer’s request)
Protection degree of current lead – IP5
Insulation class – F.

Technical characteristics in case of 380 V, frequency of 50 Hz

Type	Output, kW	Rotation speed rpm	Efficiency, %	Cos φ	М_start —— М_nom	М_max —— М_nom	I_start —— I_nom	Average noise level, dB(A)	Weight, kg IM 1081
AIR 80 А4/2	1.12/1.5	1500/3000	74/73	0.78/0.86	1.9/1.9	2.2/2.2	5.0/5.0	70	12.2
AIR 80 В4/2	1.5/2.0	1500/3000	75/75	0.79/0.86	2.0/2.0	2.0/2.1	5.0/5.0	70	14.6
AIR 90 L4/2	2.2/2.65	1500/3000	79/78	0.83/0.86	1.9/2.0	2.4/2.4	6.0/6.0	73	21.2
AIR 90 L6/4	1.32/1.6	1000/1500	74/74	0.68/0.85	2.3/1.6	2.5/2.1	5.0/5.5	68	20.5
AIR 90 L8/1	0.8/0.32	750/1500	62/75	0.6/0.86	1.7/1.5	2.0/2.0	3.0/5.0	63	19.3
AIR 100 L4/2	4.0/4.75	1500/3000	82/82	0.88/0.91	1.9/2.2	2.1/2.4	5.5/6.0	73	33.0

The following versions are available:

1) by mounting:

- on feet (IM 1081)

- with flange (IM 3041, 3641)

- combined (IM 2081, 2181)

- with second free shaft end (IM 1082, 2082, 2182, 3042, 3642)

- built-in (IM 5010);

2) by climatic conditions:

Electric motors can be manufactured for all climate regions (including marine, cold, tropical, etc.) on customer’s request.

3) special versions:

- chemically resistant (Kh2)

- with integrated thermal protection (B)

- with increased accuracy (P).