Datasheet

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31October2011/version 8 LEM reserves the right to carry out modications on its transducers, in order to improve them, without prior notice www.lem.com
Current Transducer LF 205-S/SP3
Isolation characteristics
V
d
Rms voltage for AC insulation test, 50/60 Hz, 1 min 3.5 kV
V
w
Impulse withstand voltage 1.2/50 µs 8.8 kV
V
e
Partial discharge extinction voltage rms @ 10 pC > 2 kV
Min
dCp Creepage distance 11 mm
dCI Clearance 10.2 mm
CTI Comparative Tracking Index (group IIIa) 175
Applications examples
According to EN 50178 and IEC 61010-1 standards and following conditions:
● Over voltage category OV 3
● Pollution degree PD2
● Non-uniform eld
Safety
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.
EN 50178 IEC 61010-1
dCp, dCI, Rated insulation voltage Nominal voltage
Basic insulation 500 V 500 V
Reinforced insulation 250 V 250 V
V
w