3 Phase Isolating Transformer, including wall mountable housing – degree of protection IP55DTW 0.1 - 25kVA according to IEC/DIN EN61558-2-4

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Typical applications

3 phase isolating transformer according to IEC/EN61558-2-4 for general applications, e.g. for providing electrical (galvanic) isolation according to VDE0700/EN60335 regulations or network supply transformer (e.g. TN network system)

Specifications

3 phase isolating transformer according to EN61558-2-4. protection class I ready, built in a stable sheet steel wall mountable housing (degree of protection IP55).

Due to innovative vacuum impregnation in polyester varnish, the noise level is extraordinary low. Screw terminals are contact proof according to BGV A3. DIN connectors – sizes depend on wire gauges – are used for wire bushings.

Standard switching matrix: Yyn0 (max. typical star load of phase current: approx. 10%). Switching matrix: Please note the distinction between different voltages (e.g. phase voltage, line voltage). For further information, don´t hesitate to contact us.

3 Phase Autotransformer IP55

including wall mountabe housing  IEC/EN61558-2-13

Voltage range200 V … 550 V
Rated frequency50/60 Hz
Power range100VA … 25kVA
Setup exitStandard switching matrix Yyn0
(typical star load approx. 10%)
Max. ambient temperature40°C
UL Insulation System (optional)OBJY2.E181051
Insulation class (IEC85)B 130°C
Fire protection classUL94HB (V-0 possible)
Degree of protectionIP00
Protection classI
  • Including wall mountable housing – degree of protection IP55; RAL7035 (standard) pulverbeschichtet
  • Wire bushings according to DIN regulations
  • Screw terminals contact proof according to BGV A3
  • Transformer completely vacuum impregnated
Rated
power
kVA
Dimensions
approx. mm
Copper
weight
KG
Total
weight
KG
Size
Type and
Ordering No.
A
B
C
D
E
F
0,10
285
160
325
250
200
9,0
0,60
5,58
3UI 60/21DTW0010
0,162851603252502009,00,806,553UI 60/31DTW0016
0,252851603252502009,01,307,803UI 75/26DTW0025
0,402851603252502009,01,609,453UI 75/41,5DTW0040
0,503852104283503009,02,7014,403UI 90/31DTW0050
0,633852104283503009,03,0016,103UI 90/41,5DTW0063
0,803852104283503009,03,5017,603UI 90/51,5DTW0080
1,003852104283503009,05,0020,803UI 114/40DTW0100
1,253852104283503009,05,5021,503UI 114/40DTW0125
1,603852104283503009,06,4023,403UI 120/41DTW0160
2,003852104283503009,07,0029,203UI 120/51DTW0200
2,503852104283503009,08,2033,503UI 132/46DTW0250
3,204852605304504009,09,5041,803UI 132/60DTW0320
4,004852605304504009,012,8052,003UI 150/52DTW0400
5,004852605304504009,013,5055,503UI 168/58DTW0500
6,304852605304504009,014,0057,50EI 300/300/63DTW0630
8,004852605304504009,014,0075,40EI 300/300/78DTW0800
10,006852606406505009,014,0086,00EI 350/350/73DTW1000
12,506852606406505009,018,0097,00EI 350/350/88DTW1250
16,006852606406505009,020,00110,50EI 400/400/83DTW1600
20,006854106406505009,031,00181,50EI 400/400/93DTW2000
25,006854106406505009,041,00191,50EI400/400/110DTW2500

 

3 Phase Isolating Transformers Circuits and Circuit Designs

3 phase isolation transformers offer various possibilities to connect PRIMARY and SECUNDARY winding.

Each design allows specific transformer characteristics. See the following table for preferred circuit designs.

  • Neutral wire “N“ or “n”. Percentage of neutral wire current allways refers to nominal current of phase conductor.
  • Please mind:

    • Secundary star circuit allows load on neutral wire.
    • Parallel connection of transformers must comply to following criteria:
      • Nominal voltage and rated frequency
      • Circuit design
      • Short circuit voltages
      • Ratio of rated loads should not extend 3:1