Technical data

22
• DOK-DIAX02-DDC01******-PRJ1-EN-E1,44 • 01.97
3. Electrical Connections - Installation Guidelines
3.8. Three-Phase Autotransformers in IP 55 Housing
DST 2,5 / G / 400/480/500/525 - 230 - IP55
DST = threephase
autotransformer
rated power
in kVA
suitable for
mounting into
IP55 housing
input voltages
in V
output voltages
in V
prot. cate.
D
A
F
E
B
PG
C
D
A
C
PG
B
E
F
blind screw
G
H
MBDREHSTRSPARTRAFO
If transformers are to be mounted into housing, then this must be taken into consideration during planning.
Due to the limit heat dissipation via the relatively small housing surface it is possible for standard transformers
to reach unacceptably high temperature levels. Transformers of the type DST../G/ have been especially with a
higher protection level for mounting into housing.
autotransformers with housing up to 5 kVA autotransformers with housing from 10 to 25 kVA
Type codesTechnical data
as per DIN/VDE 0550 and 0532
steel plate housing - prot. category IP 55
powder coating in RAL 7032
connection symbol: YNa0
frequency: 50/60 Hz
insulation class: T 40/F
temperature contact: AC1A/250V/DC24V
Resin coat for protection against corrosion
individual items checked by VDE/IEC
PG11
GH
blind
screw
PG11
Block diagram
U4
U3
U2
U1
N1
V4
V3
V2
V1
W4
W3
W2
W1
440 V
415 V
400 V
230 V
1)
1) max. load: DC 24 V/ 1 A
AC 230 V / 1 A
460 V
U5 V5 W5
Type Codes
Dimensions in mm
G H Weight Maximum conn.
Pg Pg cross sections
DST .../G/ A B C D E Fø cable ø cable ø in kg in mm
2
2,5/G/400/415/440/460-230-IP55
300 445 235 250 415 12
16 21
33.5 4
2.5/G/400/480/500/525-230-IP55 10…14 14…18
5.0/G/400/415/440/460-230-IP55
375 570 235 300 540 12
16 21
54 10
5.0/G/400/480/500/525-230-IP55 10…14 14…18
10/G/400/415/440/460-230-IP55
490 400 500 250 370 16
16 21
100 10
10/G/400/480/500/525-230-IP55 10…14 17…19
15/G/400/415/440/460-230-IP55
595 480 600 280 440 16
21 29
135 16
15/G/400/480/500/525-230-IP55 14…18 18…25
25/G/400/415/440/460-230-IP55
595 480 600 280 440 16
29 36
200 35
25/G/400/480/500/525-230-IP55 18…25 25…33
Fig. 3.7: Dimensions and data of 3-phase autotransformers (prot. cat. IP 55)
Avilable types