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Current Transducer LF 205-S
Isolation characteristics
U d
? W
U e
d Cp
d CI
CTI
Rms voltage for AC insulation test, 50/60 Hz, 1 min
Impulse withstand voltage 1.2/50 μs
Partial discharge extinction voltage rms @ 10 pC
Creepage distance
Clearance
Comparative Tracking Index (group IIIa)
3.5
8.8
> 2
Min
11
10.2
175
kV
kV
kV
mm
mm
Applications examples
According to EN 50178 and IEC 61010-1 standards and following conditions:
● Over voltage category OV 3
● Pollution degree PD2
● Non-uniform field
EN 50178
IEC 61010-1
d Cp , d CI , ? W
Basic insulation
Reinforced insulation
Rated insulation voltage
500 V
250 V
Nominal voltage
500 V
250 V
Safety
This transducer must be used in limited-energy secondary circuits according to
IEC 61010-1.
This transducer must be used in electric/electronic equipment with respect to
applicable standards and safety requirements in accordance with the manufacturer ’s
operating instructions.
Caution, risk of electrical shock
When operating the transducer, certain parts of the module can carry hazardous
voltage (eg. primary busbar, power supply).
Ignoring this warning can lead to injury and/or cause serious damage.
This transducer is a build-in device, whose conducting parts must be inaccessible
after installation.
A protective housing or additional shield could be used.
Main supply must be able to be disconnected.
Page 2/3
8June2013/version 17
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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