Control transformer

BUST 4000/5/23

Characteristics

Benefits

 High power density due to a compact construction design

 Primary side ±5 % tappings for voltage adjustment

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

 Contact protected screw connection terminals complying with UVV BGV A3

 Low height

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Product Control transformer
Order number BUST 4000/5/23
Power 4,000 VA
Input 475 V / 500 V / 525 V
Output 2 x 115 V • 17.4 Aac
Frequency range 50 Hz to 60 Hz
Short-Circuit Losses 141 W
No-Load Losses 52 W
Short-Term Power / instantaneous output 11,000 VA
Short circuit voltage uk 2.70 %
EN insulation class B (130°C)
UL Insulation class class 130
Duty Cycle 100 %
Wire material Copper
Efficiency 95.4 %
General
Short circuit proof not short-circuit proof
Switching group Iii0
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 1
Electrical Connections
Terminal Pri Screw terminal
Terminal Sec Screw terminal
Terminal PE Screw terminal
Size and Weight
Width 325 mm / 12.8 in
Height 175 mm / 6.89 in
Depth 240 mm / 9.45 in
Weight 37 kg / 81.57 lbs
Low Voltage Directive EN 61558-2-2
Approval cURus - Recognized UL 5085-1/-2; CSA 22.2

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