Interference suppressing transformer STT

Interference suppressing transformer STT, STT
Data Standards/Certifications Applications Downloads
General Data
  • Rated input voltage 230 Vac
  • Rated output voltage 230 Vac
  • Rated power 100 ‑ 400 VA
  • Insulation class A
  • Maximum ambient temperature 40 °C
  • Efficiency up to 91 %
  • Degree of protection IP 44
Advantages
  • Good attenuation against radio frequency interference and pulses
  • Low magnetic leakage field
  • Integrated short circuit and overload protection
  • Very good moisture protection and low noise thanks to resin encapsulation
  • High degree of protection
  • Carrying handle, mains connecting lead and socket for mobile use
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STT 100
STT 200
STT 400
 
Input
Rated input voltage
230 Vac
230 Vac
230 Vac
 
Rated frequency
50 - 60 Hz
50 - 60 Hz
50 - 60 Hz
 
Terminals Input
Mains connecting cable with safety plug
Mains connecting cable with safety plug
Mains connecting cable with safety plug
 
Output
Rated output voltage
230 Vac
230 Vac
230 Vac
 
Rated Power
100 VA
200 VA
400 VA
 
No‑load voltage (app. x factor)
1.06
1.07
1.10
 
Leakage cur. (PRI‑PE)
43 µA (typ.)
57 µA (typ.)
85 µA (typ.)
 
Leakage cur. (PRI‑SEC)
16 µA (typ.)
26 µA (typ.)
41 µA (typ.)
 
Efficiency
89 %
90 %
92 %
 
Terminals Output
Protective contact socket
Protective contact socket
Protective contact socket
 
Environment
Ambient temperature max.
40 °C
40 °C
40 °C
 
Safety and protection
Type
enclosed
enclosed
enclosed
 
Class of Insulation System
A
A
A
 
Protection index
IP 44
IP 44
IP 44
 
Safety class
I
I
I
 
Insulation res. (PRI‑PE)
>10 GΩ (typ.)
>10 GΩ (typ.)
>10 GΩ (typ.)
 
Insulation res. (PRI‑SEC)
>10 GΩ (typ.)
>10 GΩ (typ.)
>10 GΩ (typ.)
 
Coupling cap. (PRI‑SEC)
172 pF (typ.)
262 pF (typ.)
390 pF (typ.)
 
Magn. 50 Hz stray f. (Encl.)
0.33 mT (typ.)
0.30 mT (typ.)
0.85 mT (typ.)
 
Short circuit strength
non-inherently short-circuit proof
non-inherently short-circuit proof
non-inherently short-circuit proof
 
Test voltage
4000 Vac, 50 Hz
4000 Vac, 50 Hz
4000 Vac, 50 Hz
 
Measures and weights
Weight
5.10 kg
8.00 kg
12.70 kg
 
Dimensions W x H x D
105 x 125 x 170 mm
120 x 150 x 200 mm
120 x 175 x 300 mm
 
 
Dimension picture on request
Dimension picture on request
Dimension picture on request
  
Order numbers
Order Number
STT 100
STT 200
STT 400