Control- and isolating transformer

ST 500/44/23

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Image of BLOCK Item: ST 500/44/23 Image of BLOCK Item: ST 500/44/23
Picture shows ST 1000/11/11
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Characteristics

General data

The transformers of the ST series ensure safe galvanic isolation of the primary circuit from the secondary circuit. The unique BLOCK IMPEX vacuum impregnation process provides excellent protection against external influences while reducing noise levels. The robust metal base plate with elongated holes ensures easy and secure mounting.

Benefits

› Control and isolating transformer according to EN (IEC) 61558-2-2 and EN (IEC) 61558-2-4

› Very good inrush behavior due to reduced inrush currents

› High power density through a compact design concept

› Primary side ±5% taps for voltage adjustment

› Touch-protected connection terminals according to UVV BGV A3

Product Control- and isolating transformer
Order number ST 500/44/23
Series ST
Power 500 VA
UL Derating 400.00 VA
Input 418 V / 440 V / 462 V
Output 230 V • 2.17 Aac
Phases 1
Frequency range 50 Hz to 60 Hz
Short-Circuit Losses 25.5 W
No-Load Losses 17 W
Short-Term Power / instantaneous output 1,370 VA
EN Insulation class B (130°C)
UL Insulation class class 105
Duty Cycle 100 %
Wire material Copper
Efficiency 92.2 %
General
Short circuit proof not short-circuit proof
Switching group Ii0
Cooling type AN
Environment
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
Input terminal Screw terminal
Output terminal Screw terminal
Terminal PE Flat plug connection
Size and Weight
Width 120 mm / 4.72 in
Height 121 mm / 4.76 in
Depth 124 mm / 4.88 in
Weight 6.7 kg / 14.771 lbs
Low Voltage Directive EN 61558-2-2
EN 61558-2-4
Approval cURus - Recognized UL 5085-1/-2; CSA 22.2
VDE Approval

VDE 0570-2-x (DIN EN 61558-2-x)
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Conrad Electronic SE

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