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Current Transducer DHR-C420
Isolation characteristics
V b
Rated isolation voltage rms 3) 300
according to the standard IEC 61010-1 and with the following conditions:
- Reinforced isolation
- Over voltage category CAT III
- Pollution degree PD2
V
V d
V w
dCp
dCl
CTI
- Heterogeneous field
Rms voltage for AC isolation test 4) , 50 Hz, 1min
Impulse withstand voltage 4) , 1.2/50 uS
Creepage distance
Clearance distance
Comparative tracking index (Group I)
4.0
7.3
7.2
7.2
> 600
kV
kV
mm
mm
Notes : 3) Between primary conductor voltage and ground. The voltage category
could be improved according to the insulation characteristic given by
the cable manufacturer. The UL 508 Standard for Safety for Industrial
Control Equipment requires that only insulated conductors are used as
primary circuit with this transducer.
4)
Between primary (completely filling the aperture) and secondary.
Transfer characteristics
Output in mA
20
4
-Ipn
+Ipn
Page 2/4
100518/20
LEM reserves the right to carry out modifications on its transducers, in order to improve them, without prior notice.
www.lem.com
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