Isolating transformer, three-phase

TT3 8-4-4

Characteristics

Benefits

 Safe galvanic isolation

 Patented assembly technology to lower heat losses

 Very good corrosion protection and low noise thanks to BLOCK IMPEX 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

Product Search
Product Isolating transformer, three-phase
Order number TT3 8-4-4
Power 8,000 VA
Input 3 x 400 V
Output 3 x 380 V • 12.2 Aac
oder 400 V • 11.5 Aac
oder 420 V • 11 Aac
Frequency range 50 Hz to 60 Hz
Short-Circuit Losses 204 W
No-Load Losses 123 W
Short-Circuit Voltage uk / 2.20 %
EN insulation class F (155°C)
UL Insulation class class 155
Duty Cycle 100 %
Wire material Copper
Efficiency 96.1 %
General
Short circuit proof not short-circuit proof
Switching group Dyn5
Cooling type AN
Enviroment
Ambient temperature -20 °C to 50 °C / -4 °F to 122 °F
Max. installation height 2,000 m / 6,562 ft
Protection and safety
Protection type IP 00
Protection class (prepared) I
Overvoltage category III
Degree of contamination 1
Electrical Connections
Terminal Pri Screw terminal
Terminal Sec Screw terminal
Terminal PE Screw terminal
Size and Weight
Width 410 mm / 16.14 in
Height 360 mm / 14.17 in
Depth 180 mm / 7.09 in
Weight 67 kg / 147.71 lbs
Low Voltage Directive EN 61558-2-4
Approval cURus - Recognized UL 5085-1/-2; CSA 22.2

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