LAH-25-NP Datasheet, PDF (2/3 Pages) LEM – Current Transducer LAH 25-NP

Current Transducer LAH 25-NP
Insulation coordination
U_d RMS voltage for AC insulation test, 50 Hz, 1 min 5
kV
Û_W Impulse withstand voltage 1.2/50 μs
12
kV
U_e Partial discharge extinction RMS voltage @10 pC > 2
kV
Min
d_Cp Creepage distance ¹⁾
d_CI
Clearance ¹⁾
CTI Comparative tracking index (group IIIa)
12
mm
12 mm
175
Note: ¹⁾ On PCB with soldering pattern UTEC93-703.
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
d_Cp, d_CI, Û_W
Basic insulation
Reinforced insulation
EN 50178
Rated insulation voltage
1000 V
500 V
IEC 61010-1
Nominal voltage
1000 V
500 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 (e.g. 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.
24February2017/Version 9
LEM reserves the right to carry out modifications on its transducers, in order to improve them, without prior notice
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