Control- and safety isolating transformer
STSU 250/24
Characteristics
Benefits
› Dual input voltage 230 and 400 Vac
› Quick to cable up thanks to the use of spring-loaded terminals
› Very good switch-on behaviour thanks to reduced starting currents
› Very good corrosion protection and low noise thanks to BLOCKIMPEX vacuum impregnation
› Up to 250 VA with combination footplate for bolted and rail mounting
› Very good corrosion protection and low noise thanks to BLOCK IMPEX vacuum impregnation
› Contact protected screw connection terminals complying with UVV BGV A3
› Simple mounting due to robust metal footplate with oval slots
› 63 - 250 VA with combination footplate for bolted and rail mounting
Product | Control- and safety isolating transformer |
Order number | STSU 250/24 |
Power | 250 VA |
Input | 230 V / 400 V ± 15 V |
Output | 2 x 12 V • 10.4 Aac |
Frequency range | 50 Hz to 60 Hz |
Short-Circuit Losses | 21.83 W |
No-Load Losses | 10.09 W |
Short-Term Power / instantaneous output | 623 VA |
Short circuit voltage uk | 5.70 % |
EN insulation class | B (130°C) |
UL Insulation class | class 130 |
Duty Cycle | 100 % |
Wire material | Copper |
Efficiency | 88.7 % |
General
Short circuit proof | not short-circuit proof |
Switching group | Iii0 |
Shield winding | Yes |
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 | 96 mm / 3.78 in |
Height | 104 mm / 4.09 in |
Depth | 102 mm / 4.02 in |
Weight | 3.8 kg / 8.38 lbs |
General
TS35 rail mounting possible | Ja |
Low Voltage Directive |
EN 61558-2-2 EN 61558-2-6 |
Approval cURus - Recognized | UL 5085-1/-2; CSA 22.2 |