Current Transducer APR-B420L

Isolation characteristics

V

b

Rated isolation voltage rms

300

V

with IEC 61010-1 standards and following conditions :

- Single insulation

- Over voltage category CAT III

- Pollution degree PD2

- Heterogeneous field

V

d

Rms voltage for AC isolation test, 50 Hz, 1min

5

kV

V

e

Partial discharge extinction voltage rms @ 10 pC

1.5

kV

V

w

Impulse withstand voltage 1.2/50

µs

6.1

kV

If insulated cable is used for the primary circuit, the voltage category

could be improved with the following table :

Cable insulation (primary)

Category

HAR 05

600V CAT III

HAR 07

1000V CAT III

dCp

Creepage distance

5.5

mm

dCl

Clearance distance

5.5

mm

CTI

Comparative tracking index (Group I)

600

070125/4

www.lem.com

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

Page 2/3

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.

Installation and maintenance should be done with main power supply

disconnected.

The operator must have an accreditation to install this material.

Caution! Risk of electrical shock

When operating the transducer, certain parts of the module can carry hazardous

voltage (e.g. primary conductor, power supply).

Ignoring this warning can lead to injury and/or cause serious damage.

The user must take care of all protection guarantee against electrical shock.

This transducer is a built-in device, whose conducting parts must be inaccessible

after installation. A protective housing or additional shield could be used.