Safety isolating transformer
STSU 40/24
Characteristics
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 switch-on behavior thanks to reduced inrush currents
› Primary side ±15 V taps for voltage adjustment
› Touch-protected terminal blocks according to UVV BGV A3
› With combination base plate for screw and DIN rail mounting
Product | Safety isolating transformer |
Order number | STSU 40/24 |
Power | 40 VA |
Input | 230 V / 400 V ± 15 V |
Output | 2 x 12 V • 1.67 Aac |
Phases | 1 |
Frequency range | 50 Hz to 60 Hz |
Short-Circuit Losses | 6.3 W |
No-Load Losses | 2.7 W |
Short circuit voltage uk | 12.3 % |
EN insulation class | B (130°C) |
UL Insulation class | class 130 |
Duty Cycle | 100 % |
Wire material | Copper |
Efficiency | 81.6 % |
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 | 66 mm / 2.6 in |
Height | 78 mm / 3.07 in |
Depth | 82 mm / 3.23 in |
Weight | 1 kg / 2.2 lbs |
General
TS35 rail mounting possible | Ja |
Low Voltage Directive | EN 61558-2-6 |
Approval cURus - Recognized | UL 5085-1/-2; CSA 22.2 |