Datasheet
LEM www.lem.com
Page 2/3
LEM reserves the right to carry out modifications on its transducers, in order to improve them, without previous notice.
060315/8
Current Transducer LTSR 6-NP
Isolation characteristics
V
d
R.m.s. voltage for AC isolation test, 50/60 Hz, 1 mn 3 kV
Impulse withstand voltage 1.2/50 µs > 8 kV
Min
V
e
R.m.s. voltage for partial discharge extinction @ 10pC > 1.5 kV
Min
dCp Creepage distance
8)
15.35 mm
dCl Clearance distance
9)
6.2 mm
CTI Comparative Tracking Index (Group III a) 175
Application examples
According to EN 50178 and IEC 61010-1 standards and following conditions :
• Over voltage category OV 3
• Pollution degree PD2
• Non-uniform field
Notes :
1)
Only in refout mode or with external REF less than 2.525 V and greater
than 2.475 V. For external REF out of these limits see leaflet.
2)
V
OUT
is
linked to
V
REF
, by conception the difference between these two
nodes for I
P
= 0 is maximum ± 25 mV, 2.475 V < V
OUT
< 2.525 V.
3)
In Refout mode at T
A
= 25°C, 2.475 V< V
REF
< 2.525 V.
The minimal impedance loading the ref pin should be > 220 kW.
Internal impedance = 600 W.
For most applications you need to buffer this output to feed it into an
ADC for example.
4)
To overdrive the REF (1.9 V .. 2.7 V) max. ± 1 mA is needed.
5)
Please see the operation principle on the other side.
6)
Only due to TCR
IM
.
7)
Specification according to IEC 1000-4-8 not adhered to in DC, error
according to two axes 1.5% instead of 1%.
8)
On housing.
9)
On PCB with soldering pattern UTEC93-703.
EN 50178 IEC 61010-1
dCp, dCI, Rated isolation voltage Nominal voltage
Single isolation 600 V 600 V
Reinforced isolation 300 V 300 V
V
W
V
W
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 built-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.