Three-phase starting current limiters

ESBD-K

 
esbd-k.jpg
Starting current limiters are voltage-controlled devices. Their functioning is based on a time-delayed bridging of the incorporated damping resistor which is set ex works. The time-lag is also set ex works for the ESBD-K model (approx. 20 to 50 msec.). Starting current limiter in plastic casing with snap fixation for mounting rail TS 35. 
Special voltages
UPRI: 400 - 500 V
Red Art.-No. available ex stock
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Rated current 
Article-no. for standard transformers 
Dimensions 
Weight 
Nenn-
strom
Begrenzungs-
widerstand
PRI
Spannungsbereich
PRI
PRI
PRI

a

b

c


Cu
kg
Ges.
kg
 
A
Ohm

SEC
3 x 400..500 V
SEC
SEC
SEC

 



 
16
 

729093 
 
 
 

100
76
111
      

0 
0,3 
 
Note:
Starting current limiters are voltage-controlled devices. Their functioning is based on a time-delayed bridging of the incorporated damping resistor which is set ex works. The time-lag is also set ex works for the ESBD-K model (approx. 20 to 50 msec.). Starting current limiter in plastic casing with snap fixation for mounting rail TS 35.
Options:
Application: Limitation of starting currents in electrical devices, e.g. transformers, electrical motors, etc. The starting current limiter is connected directly in series to a device which is exposed to a high starting current. Design: The ESBD-K type is constructed for a nominal current of 16 A. Experience shows that a limiting resistance of 5 ohms (standard) is generally sufficient. In certain cases depending on the starting current peaks and, in particular, on the frequency of the peaks and/or the peak widths, longer ON delay or higher limitation resistances may prove to be necessary. Caution: Due to the incorporated overtemperature protection, the starting current limiter requires a certain cooling down phase between the switching cycles. The time between two switching cycles should be approx. one minute.
 
Wiring Diagram

esbd-k.jpg
 
Dimensions

esbd-k.jpg
 

Column #col3

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