Block TT3 Catalog Page
Isolating transformer
TT3
Typ TT3 1-4-4 TT3 2,5-4-4 TT3 2,5-69-4 TT3 5-4-4 TT3 6,3-4-4 TT3 8-4-4
Input
Rated input voltage 3 x 400 Vac 3 x 400 Vac 3 x 690 Vac 3 x 400 Vac 3 x 400 Vac 3 x 400 Vac
Frequency range 50 - 60 Hz 50 - 60 Hz 50 - 60 Hz 50 - 60 Hz 50 - 60 Hz 50 - 60 Hz
Output
Rated output voltage 3 x 400 Vac 3 x 400 Vac 3 x 400 Vac 3 x 400 Vac 3 x 400 Vac 3 x 400 Vac
Tappings Output (±) ±5 % ±5 % ±5 % ±5 % ±5 % ±5 %
Rated Power 1000 VA 2500 VA 2500 VA 5000 VA 6300 VA 8000 VA
Rated current 3 x 1.52 Aac (3 x 380 Vac)
3 x 1.44 Aac (3 x 400 Vac)
3 x 1.38 Aac (3 x 420 Vac)
3 x 3.8 Aac (3 x 380 Vac)
3 x 3.7 Aac (3 x 400 Vac)
3 x 3.5 Aac (3 x 420 Vac)
3 x 3.8 Aac (3 x 380 Vac)
3 x 3.7 Aac (3 x 400 Vac)
3 x 3.5 Aac (3 x 420 Vac)
3 x 7.6 Aac (3 x 380 Vac)
3 x 7.2 Aac (3 x 400 Vac)
3 x 6.9 Aac (3 x 420 Vac)
3 x 9.6 Aac (3 x 380 Vac)
3 x 9.1 Aac (3 x 400 Vac)
3 x 8.6 Aac (3 x 420 Vac)
3 x 12.2 Aac (3 x 380 Vac)
3 x 11.5 Aac (3 x 400 Vac)
3 x 11 Aac (3 x 420 Vac)
Short circuit voltage
6.4 % 3.7 % 3,8 % 3.6 % 2.8 % 2.2 %
Power loss 92.0 W 155.0 W 155.0 W 275.0 W 290.0 W 320.0 W
Vector group
Dyn 5 Dyn 5 Dyn 5 Dyn 5 Dyn 5 Dyn 5
Efficiency 91.5 % 94.3 % 94.3 % 94.7 % 95.5 % 96 %
Approvals
Approvals cURus cURus - cURus cURus cURus
Environment
Ambient temperature max. 50 °C 50 °C 50 °C 50 °C 50 °C 50 °C
Safety and protection
Type
Open type Open type Open type Open type Open type Open type
Insulation class
VDE=F, UL=class 155 VDE=F, UL=class 155 F (155°C) VDE=F, UL=class 155 VDE=F, UL=class 155 VDE=F, UL=class 155
Protection index
IP 00 IP 00 IP 00 IP 00 IP 00 IP 00
Safety class (prepared)
I I I I I I
Short circuit strength
non-short-circuit proof non-short-circuit proof non-short-circuit proof non-short-circuit proof non-short-circuit proof non-short-circuit proof
Order numbers
Recommended enclosure BGUK 20 BGE-050 BGE-050 BGE-065 BGE-065 BGE-065
Order Number TT3 1-4-4 TT3 2,5-4-4 TT3 2,5-69-4 TT3 5-4-4 TT3 6,3-4-4 TT3 8-4-4
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Transformers
Isolating transformers
1
Isolating transformer
TT3
General Data
Rated input voltage 3 x 400 Vac
Rated output voltage 3 x 400 Vac
Rated power 1000 - 30000 VA
Insulation class F
Maximum ambient temperature 50 °C
Efficiency up to 97.5 %
Degree of protection IP 00 or IP 23
Optionally adapted package for higher degrees of protection
Advantages
Safe galvanic isolation
Patented assembly technology to lower heat losses
Very good corrosion protection and low noise thanks to vacuum
impregnation
Secondary side ±5 % tappings for voltage adjustment
Fixed, contact protected screw connection terminals complying
with UVV BGV A3
Multifunctional fixing rails with 12 oval slots
Enlarged fixing rail for easy installation from above
Integrated crane eyes
Applications
Isolating transformer for the safe electrical isolation of the input and output
sides. The transformer may be used to set up protective separation as a
protective measure in accordance with VDE 0100.
Standards " Z
Isolating transformer
to: VDE 0570 Part2-4, DIN EN 61558-2-4, EN 61558-2-4, IEC 61558-2-4, UL
5085-1/-2, CSA 22.2 No.66
Sample application
Approvals W J Z
UL 5085, UL 1561, CSA 22.2 (E 103521)
Subject to change
146
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1.2
5.1
1.3
2.1
2.2
3.1
3.2
3.3
5.2
4.0
Transformers
Isolating transformers
1
Isolating transformer
TT3
Typ TT3 1-4-4 TT3 2,5-4-4 TT3 2,5-69-4 TT3 5-4-4 TT3 6,3-4-4 TT3 8-4-4
Input
Rated input voltage 3 x 400 Vac 3 x 400 Vac 3 x 690 Vac 3 x 400 Vac 3 x 400 Vac 3 x 400 Vac
Frequency range 50 - 60 Hz 50 - 60 Hz 50 - 60 Hz 50 - 60 Hz 50 - 60 Hz 50 - 60 Hz
Output
Rated output voltage 3 x 400 Vac 3 x 400 Vac 3 x 400 Vac 3 x 400 Vac 3 x 400 Vac 3 x 400 Vac
Tappings Output (±) ±5 % ±5 % ±5 % ±5 % ±5 % ±5 %
Rated Power 1000 VA 2500 VA 2500 VA 5000 VA 6300 VA 8000 VA
Rated current 3 x 1.52 Aac (3 x 380 Vac)
Short circuit voltage
Power loss 92.0 W 155.0 W 155.0 W 275.0 W 290.0 W 320.0 W
Vector group
Efficiency 91.5 % 94.3 % 94.3 % 94.7 % 95.5 % 96 %
3 x 1.44 Aac (3 x 400 Vac)
3 x 1.38 Aac (3 x 420 Vac)
6.4 % 3.7 % 3,8 % 3.6 % 2.8 % 2.2 %
Dyn 5 Dyn 5 Dyn 5 Dyn 5 Dyn 5 Dyn 5
Approvals
Approvals cURus cURus - cURus cURus cURus
Environment
Ambient temperature max. 50 °C 50 °C 50 °C 50 °C 50 °C 50 °C
Safety and protection
Type
Insulation class
Protection index
Safety class (prepared)
Short circuit strength
Open type Open type Open type Open type Open type Open type
VDE=F, UL=class 155 VDE=F, UL=class 155 F (155°C) VDE=F, UL=class 155 VDE=F, UL=class 155 VDE=F, UL=class 155
IP 00 IP 00 IP 00 IP 00 IP 00 IP 00
I I I I I I
non-short-circuit proof non-short-circuit proof non-short-circuit proof non-short-circuit proof non-short-circuit proof non-short-circuit proof
Order numbers
Recommended enclosure BGUK 20 BGE-050 BGE-050 BGE-065 BGE-065 BGE-065
Order Number TT3 1-4-4 TT3 2,5-4-4 TT3 2,5-69-4 TT3 5-4-4 TT3 6,3-4-4 TT3 8-4-4
3 x 3.8 Aac (3 x 380 Vac)
3 x 3.7 Aac (3 x 400 Vac)
3 x 3.5 Aac (3 x 420 Vac)
3 x 3.8 Aac (3 x 380 Vac)
3 x 3.7 Aac (3 x 400 Vac)
3 x 3.5 Aac (3 x 420 Vac)
3 x 7.6 Aac (3 x 380 Vac)
3 x 7.2 Aac (3 x 400 Vac)
3 x 6.9 Aac (3 x 420 Vac)
3 x 9.6 Aac (3 x 380 Vac)
3 x 9.1 Aac (3 x 400 Vac)
3 x 8.6 Aac (3 x 420 Vac)
3 x 12.2 Aac (3 x 380 Vac)
3 x 11.5 Aac (3 x 400 Vac)
3 x 11 Aac (3 x 420 Vac)
1.1
Subject to change
147
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