3 Phase Isolating Transformer, base fixed housing – degree of protection IP23DTB 1.6 - 100kVA 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, built in a stable sheet steel housing (degree of protection IP23).

Housing is prepared for base fixing. Due to innovative vacuum impregnation in polyester varnish, the noise level is extraordinary low. Screw terminals are contact proof according to VBG4. 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!
Power > 5 kVA: For safe transportation – e.g. to crane the transformer – loops are mounted to the housing.

3 Phase Isolating Transformer IP23

base fixed housing IEC/EN61558-2-4

Voltage range input / output1 V … 1000 V
Rated frequency50/60 Hz
Power range1,6 … 630 kVA
setup exitConnection symbol Standard Yyn0

starpoint capacity ca.10%

Max. ambient temperature40°C
UL Insulation System (optional)OBJY2.E181051
Insulation class (IEC85)F 155°C / bis 6,3kVA B 130°C
Fire protection classUL94HB (V-0 möglich)
Degree of protectionIP00
Protection classI
  • Housing including angle brackets; RAL7035 pulverbeschichtet (standard)
  • Wire bushings according to DIN regulations
  • STransformer connectors: Screw terminals 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
G
1,6406320350182306116,0021,03UI 120/41DTB0016
2406320350185306116,7026,03UI 120/51DTB0020
2,5406320350200306117,9028,03UI 132/46DTB0025
3,2406320350200306118,8032,03UI 132/60DTB0032
4,04263603962193401113,039,03UI 150/52DTB0040
4,54263603962193401112,243,53UI 150/65DTB0045
5,0576440546452434201118,052,03UI 168/58DTB0050
6,3576440546452594201113,054,0EI 300/300/63DTB0063
8,0576440546452594201113,562,5EI 300/300/78DTB0080
10,0646520626453165001113,071,0EI 350/350/73DTB0100
12,5646520626453165001115,085,0EI 350/350/88DTB0125
16706560676533605401124,5110,0EI 400/400/83DTB0160
20706560676533605401128114,0EI 400/400/83DTB0200
25706560676533605401133126,0EI 400/400/93DTB0250
30706560676533605401143150,0EI 400/400/110DTB0300
35706560676533605401141173,0EI 400/400/140DTB0350
40706560676623605401145192,0440/420-80/137DTB0400
50956660726624606401169218,0440/420-80/188DTB0500
63956660726624606401189263,0550/470-90/120DTB0630
80956660726624606401189296,0550/470-90/150DTB0800
1009566607266246064011110362,0550/470-90/180DTB1000
1259566607266267064011168362,0550/470-90/180DTB1250
160102078010516267073515203600680/120DTB1600
200102078010516267073515255710680/150DTB2000
225102078010516267073515280845680/180DTB2250
250102078010516267073515310980680/210DTB2500
31514601000130062684960154401130830/150DTB3150
40014601000130062684960155401330830/200DTB4000
50014601000130062684960155901550830/250DTB5000
630174012001500627801160186601680960/1800DTB6300

 

 

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