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24February2017/Version 9

LEM reserves the right to carry out modifications on its transducers, in order to improve them, without prior notice

www.lem.com

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

12

mm

d

CI

12

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 field

EN 50178

IEC 61010-1

d

Rated insulation voltage

Nominal voltage

Basic insulation

1000 V

1000 V

Reinforced insulation

500 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.