GENERAL INTRODUCTION

YD2 series electric motors (center height H 80-280 mm)  Two Speed: 4/2, 6/4, 8/4, 8/6,12/6   Three Speed: 6/4/2, 8/4/2, 8/6/4, Four Speed: 12/8/6/4.  are designed for Multi-Speed Application and which are total enclosed fan cooled three phase squirrel cage induction motors, according to the requirement of international market, especially European market. Y2 series electric motors are characterized by such on outstanding features as: protection degree: IP55, insulation class: F, Cooling method is IC411, the rated output and the mounting dimensions are conformed to the standard IEC and DIN42673.

Standard Features:

1.  Three Phase, Euro-voltage,  380V or 400V,50/60HZ,IP55,  Class F, TEFC ;

2.   Cast Iron Frames 80-280 

3.   Squirrel Cage Rotor/Aluminum Die Cast

4.   V-Ring On Both End-Shields Or Oil-Seal Ring On Both End-Shields

5.   Anti-Condensation Drain Holes On Request  

6.   Class "F" Insulation  

7.   Continuous Duty-S1

8.   Ambient Temp. 40℃

9.  Altitude: 1000M  

10.  Dimensions According To IEC-72

11.  Performance According To IEC-34

12.  Regreasing Nipples From 180 And Above

13.  Metric Thread Cable Entries In Terminal Box

14.  PTC Thermistors(1 Per Phase) fitted in 160M and Above

15.  Suitable For Inverter Duty Applications  

16.  Paint Color Blue: RAL5010 Or Others

Optional Features:

1.  Degree of Protection : IP56  

2.  Bearing Seals: Oil Seal

3.  Thermal Protection:   1. PT100；2. PTC For Frame 80-400

4.  Space Heaters

5.  Class "H" Insulation

6.  Roller Bearing For Frame 160M and Above. 

MOUNTING ARRANGEMENTS

There are five basic constructional mounting arrangements for series C motors:

B3: Frame with feet, end bracket without flange.

B5: Frame without foot, end bracket with flange (with hole)

B35: Frame with feet, end bracket with flange (with hole)

B34: Frame with feet, end bracket with flange (with screw)

B14: Frame without foot, end bracket with flange (with screw)

The commonly used mounting arrangements and the corresponding frame no.are shown as follows in TABLE 2：

BEARING

TABLE 3：     The Bearing No. For Motors Are As Shown In Table 3: 

TERMINAL BOX

The normal position of the terminal box is on the top. But may be arranged on the left-hand side or on the right-hand side if specified when ordering. The power cable can be let out through the outlet of the terminal box in four directions by turning the box at any one of the four positions with 90 interval . There is a sealing construction (Metric Cable Glands）at the outlet (for details, see figure). And there is a M15*1.5 screw and cable glands at one side of terminal box in YD2-160 ~ YD2-280. It is used for letting out the control cable.

The Metric table glands, the Dia. Of the outlet holes and the pipe threads for the frame numbers are as shown in table 6：