Control- and isolating transformer

STSU 2000/23

Characteristics

General data

The transformers of the STSU 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

 Dual input voltage 230 and 400 Vac

 Very good inrush behavior due to reduced inrush currents

 Primary side ±15 V taps for voltage adjustment

 Touch-protected connection terminals according to UVV BGV A3

Product Control- and isolating transformer
Order number STSU 2000/23
Series STSU
Power 2,000 VA
Input 230 V / 400 V ± 15 V
Output 2 x 115 V • 8.7 Aac
Phases 1
Frequency range 50 Hz to 60 Hz
Short-Circuit Losses 47 W
No-Load Losses 60 W
Short-Term Power / instantaneous output 10,900 VA
EN Insulation class B (130°C)
UL Insulation class class 130
Duty Cycle 100 %
Wire material Copper
Efficiency 94.9 %
General
Short circuit proof not short-circuit proof
Switching group Iii0
Shield winding Yes
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 1
Electrical Connections
Input terminal Screw terminal
Output terminal Screw terminal
Terminal PE Screw terminal
Size and Weight
Width 192 mm / 7.56 in
Height 185 mm / 7.28 in
Depth 183 mm / 7.2 in
Weight 26 kg / 57.32 lbs
Low Voltage Directive EN 61558-2-2
EN 61558-2-4
Approval cURus - Recognized UL 5085-1/-2; CSA 22.2

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