Single- and three-phase toroidal variable transformers

DRU-2

 
dru2.jpg
Three-phase toroidal variable transformer according to DIN VDE 0552, designed as autotransformer (auto-connected winding), with rotary switch and scale. Voltage infinitely adjustable between zero and max. value. Angle of rotation across the entire setting range approx. 330°. Terminal connection, connection group Yn0, prepared for safety class I, 50/60 Hz, ta 40°C. 
Special voltages
UPRI: 400 V
USEC: 0 - 450 V
Red Art.-No. available ex stock
Order specifications
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Rated current 
Article-no. for standard transformers 
Dimensions 
Weight 
Nenn-
strom
Nenn-
leistung
PRI
3 x 400 V
PRI
PRI
PRI

a

b

c

d

e

g

h

i


Cu
kg
Ges.
kg
 
A
VA

SEC
3 x 0..400/450 V
SEC
SEC
SEC

 



 
6,3
4900

700684 
 
 
 

180
180
490
142
142
 
20
10
450

1,6 
25,9 
 
8
6230

700685 
 
 
 

180
180
490
142
142
 
20
10
450

2,4 
27,8 
 
10
7790

700686 
 
 
 

220
220
490
178
178
 
20
10
450

2,8 
33 
 
18
14000

700687 
 
 
 

300
300
490
249
249
 
200
10
450

5,6 
52 
 
25
19460

700688 
 
 
 

300
300
490
249
249
 
20
10
450

8,6 
54 
 
32
24900

700689 
 
 
 

330
330
490
249
249
 
20
10
460

12 
76 
 
Note:
Three-phase toroidal variable transformer according to DIN VDE 0552, designed as autotransformer (auto-connected winding), with rotary switch and scale. Voltage infinitely adjustable between zero and max. value. Angle of rotation across the entire setting range approx. 330°. Terminal connection, connection group Yn0, prepared for safety class I, 50/60 Hz, ta 40°C.
Options:
* Rated current available in all regulations.
 
Wiring Diagram

dru-2.jpg
 
Dimensions

dru-2.jpg
 

Column #col3

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