Datasheet

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Current Transducer LTSR 15-NP
Isolation characteristics
V
d
R.m.s. voltage for AC isolation test, 50/60 Hz, 1 mn 3 kV
V
w
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
7)
15.35 mm
dCl Clearance distance
8)
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
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.
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
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 k Ω. Internal impedance = 600 Ω.
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)
On housing.
8)
On PCB with soldering pattern UTEC93-703.