Isolating transformer, three-phase

TT3-A400-4040-0

Characteristics

Benefits

 Safe galvanic isolation

 Very good corrosion protection and low noise thanks to BLOCK IMPEX vacuum impregnation

 Very good discharging of thermal losses by means of optimally arranged cooling channels within the coils

 Integrated crane eyes

 If desired, the transformers can be realised in individual voltages

Product Search
Product Isolating transformer, three-phase
Order number TT3-A400-4040-0
Power 400,000 VA
Input 3 x 400 V
Output 3 x 400 V • 577 Aac
Frequency range 50 Hz to 60 Hz
Short-Circuit Losses 7812 W
No-Load Losses 1249 W
Short circuit voltage uk 4.10 %
EN insulation class F (155°C)
UL Insulation class class 180
Duty Cycle 100 %
Wire material Aluminum
Efficiency 97.8 %
General
Short circuit proof not short-circuit proof
Switching group Dyn5
Cooling type AN
Enviroment
Ambient temperature -20 °C to 40 °C / -4 °F to 104 °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 2
Electrical Connections
Terminal Pri Flat copper connection
Terminal Sec Flat copper connection
Terminal PE Bolt connection
Size and Weight
Width 1075 mm / 42.32 in
Height 1100 mm / 43.31 in
Depth 580 mm / 22.83 in
Weight 1075 kg / 2369.97 lbs
Low Voltage Directive EN 61558-2-4
Approval cURus - Recognized UL 1561; CSA 22.2

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