Control- and safety isolating transformer

STEU 250/24

Characteristics

Benefits

 Dual input voltage 230 and 400 Vac

 Very good switch-on behaviour thanks to reduced starting currents

 High power density due to a compact construction design

 Primary side ±15 V tappings for voltage adjustment

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

 Quick to cable up thanks to the use of spring-clamp terminals

 Contact protected screw connection terminals complying with UVV BGV A3

 Simple mounting thanks to robust metal footplate with oval slots

 With combination footplate for bolted and rail mounting

Product Control- and safety isolating transformer
Order number STEU 250/24
Power 250 VA
Input 230 V / 400 V ± 15 V
Output 2 x 12 V • 10.4 Aac
Phases 1
Frequency range 50 Hz to 60 Hz
Short-Circuit Losses 21.83 W
No-Load Losses 10.09 W
Short-Term Power / instantaneous output 850 VA
Short circuit voltage uk 5.72 %
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
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 Push-in terminal
Output terminal Push-in terminal
Terminal PE Flat plug connection
Size and Weight
Width 96 mm / 3.78 in
Height 107 mm / 4.21 in
Depth 129 mm / 5.08 in
Weight 3.6 kg / 7.94 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

Conrad Electronic SE

Product link

reichelt elektronik GmbH

Product link

Premier Farnell Limited

Product link

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