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Home › Products › TransformersThree-Phase Transf. TTI/500 Family

Isolating Three-Phase Transformers

TTI/500 Family

  • Isolating transformers built according to standards IEC 61558-1 and IEC 61558-2-4 (CEI 96.2); max. power 40 KVA
  • Single voltage input max. 1000V
  • Single voltage output max. 1000V
  • Class F insulating materials
  • Ambient temperature max. 35 °C
  • Input/output connectors on terminal block rails or boards with brass screws
  • Polycarbonate protection with board and brass screws, against accidental contacts in assembling
Reference Number Rated Output Dimensions Drillings Dissipated Power (W) Efficiency
(%)
Weight Kg Fig.
L P H A B G F
TTI/501 160 VA 140 90 135 125 53 14 7 19 88,2 5,2 3/5
TTI/502 250 VA 180 90 160 150 66 18 7 26 89,6 6,5 3/5
TTI/503 400 VA 180 110 160 150 86 18 7 36 91 9,5 3/5
TTI/504 630 VA 180 120 160 150 96 18 7 48 62,4 12 3/5
TTI/505 1000 VA 240 130 210 200 96 18 7 73 92,7 18 3/5
TTI/506 1600 VA 240 155 210 200 121 18 7 101 93,6 26 3/5
TTI/507 2500 VA 300 144 260 250 124 24 9 143 94,3 34,3 3/5
TTI/508 4 kVA 360 160 310 325 126 24 9 176 95,6 46,3 4/5
TTI/509 6,3 kVA 360 170 310 325 136 24 9 233 96,3 56,9 4/5
TTI/510 10 kVA 360 180 310 325 146 24 9 309 96,9 74,5 4/5
TTI/511 16 kVA 420 200 360 375 164 30 10 450 97,2 105 4/5
TTI/512 25 kVA 480 232 410 440 190 30 12 650 97,4 152 4/5
TTI/513 40 kVA 540 290 460 480 244 30 12 915 97,7 216 4/5

The TTI/500 transformers are built according to the CE standards CEI 96-2 and international standards IEC 61558.
The power range of this family reaches up to 40KVA, where both the single-voltage input and output go up to 1000V. If multi-voltage inputs and outputs are needed, please state it at the moment of ordering.
Isolating transformers are usually used for installations or appliances, where it is necessary or advisable to create a galvanic separation between the load and the mains supply. This way a totally isolated line is created. It is important to keep in mind to connect all of the equipment masses.
Besides creating an electric isolation, an isolation transformer is also useful for single-phase equipment, where there is need for the isolation of a line from the mains supply, with 4 wires (3 + neutral), with reference to earth (neutral connected to earth). Please state when ordering if there are heavy unbalanced loads, as it is advisable to create the most suitable type of output connection.
With all power supply, safety and isolating transformers, it is possible to include a copper shield between input and output, connected to earth. This will add extra safety against isolating material breakdown and oblige the current to flow from the shield towards earth.
An another important use, is the filtering function, as the shield eliminates stray capacitances between input and output.
This shield is not indispensable, as not required by standards, but can be supplied upon client’s request.
If a full lab test is required for any particular model, please state it at the moment of ordering.

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