Datasheet
120425/12
LEM reserves the right to carry out modications on its transducers, in order to improve them, without prior notice.
www.lem.com
Page 1/3
I
PN
= 50 .. 400 A
Features
● Hall effect measuring principle
● Galvanic isolation between
primary and secondary circuit
● Isolation voltage 2500 V
● Low power consumption
● Wide power supply: ± 12 ..15 V
● Primary bus bar option for 50
A and 100 A version for ease of
connection
Advantages
● Small size and space saving
● Only one design for wide current
ratings range
● High immunity to external
interference.
Applications
● AC variable speed drives
● Static converters for DC motor
drives
● Battery supplied applications
● Uninterruptible Power Supplies
(UPS)
● Switched Mode Power Supplies
(SMPS)
● Power supplies for welding
applications
Application domain
● Industrial
Current Transducer HTB 50 .. 400 - P
and HTB 50 .. 100 - TP
For the electronic measurement of currents: DC, AC, pulsed...,
with a galvanic isolation between the primary circuit (high power) and
the secondary circuit (electronic circuit).
Electrical data
Primary nominal Primary current Type
current rms measuring range
I
PN
(A) I
PM
(A)
± 50 ± 150
HTB 50-P, HTB 50-TP
1)
± 100 ± 300
HTB 100-P, HTB 100-TP
1)
± 150 ± 450
HTB 150-P
± 200 ± 500
HTB 200-P
± 300 ± 600
HTB 300-P
± 400 ± 600
HTB 400-P
V
C
Supply voltage (± 5 %)
2)
± 12 ..15 V
I
C
Current consumption ± 15 mA
V
d
Rms voltage for AC isolation test, 50 Hz, 1 min 2.5 kV
R
IS
Isolation resistance @ 500 VDC > 500 MW
V
OUT
Output voltage (Analog)@ ± I
PN
,
R
L
= 10kW, T
A
= 25°C
± 4 V
R
OUT
Output internal resistance 100 W
R
L
Load resistance > 10 kW
Accuracy - Dynamic performance data
X Accuracy @ I
PN
, T
A
= 25°C (excluding offset) < ± 1 % of I
PN
e
L
Linearity error
(0 .. ± I
PN
) < ± 1 % of I
PN
V
OE
Electrical offset voltage @ T
A
= 25°C < ± 30 mV
V
OH
Hysteresis offset voltage @ I
P
= 0;
after an excursion of 1 x I
PN
< ± 1 % of I
PN
TCV
OE
Temperature coefcient of V
OE
HTB 50-(T)P
< ± 2.0 mV/K
HTB 100-(T)P .. 400-P
< ± 1.0 mV/K
TCV
OUT
Temperature coefcient of V
OUT
(% of reading) < ± 0.1 %/K
t
r
Response time to 90% of I
PN
step < 3 µs
BW Frequency bandwidth (- 3 dB)
3)
DC .. 50 kHz
General data
T
A
Ambient operating temperature - 40 .. + 80 °C
T
S
Ambient storage temperature - 40 .. + 85 °C
m Mass < 30 ( < 36) g
Standards EN 50178 : 1997
2 pins of Ø2mm diameter are available on transducer
for PCB soldering
Notes :
1)
-TP version is equipped with a primary bus bar.
2)
Operating at ±12V ≤ Vc < ±15V will reduce the measuring range.
3)
Derating is needed to avoid excessive core heating at high frequency.



