Electrical data
Primary nominal
Primary current
Type
r.m.s. current
measuring range
I
PN
(A)
I
P
(A)
50
150
HTB 50-P, HTB 50-TP
1)
100
300
HTB 100-P, HTB 100-TP
1)
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
R.m.s. voltage for AC isolation test, 50/60 Hz, 1 mn 2.5
kV
R
IS
Isolation resistance @ 500 VDC
>500
M
V
OUT
Output voltage @ I
PN
, R
L
= 10 k
, T
A
= 25C
4
V
R
OUT
Output internal resistance
100
R
L
Load resistance
10
k
Accuracy - Dynamic performance data
X
Accuracy @ I
PN
, T
A
= 25C (without offset)
<1
% of I
PN
L
Linearity (0 .. I
PN
)
<1
% of I
PN
V
OE
Electrical offset voltage, T
A
= 25C
<30
mV
V
OH
Hysteresis offset voltage @ I
P
= 0;
after an excursion of 3 x I
PN
<1
% of I
PN
V
OT
Thermal drift of V
OE
HTB 50-(T)P
<2.0
mV/K
HTB 100-(T)P..400-P
<1.0
mV/K
TC
G
Thermal drift (% of reading)
<0.1
%/K
t
r
Response time @ 90% of I
P
<3
s
f
Frequency bandwidth (0..-3 dB)
3)
DC .. 50
kHz
General data
T
A
Ambient operating temperature
-20 .. +80
C
T
S
Ambient storage temperature
-25 .. +85
C
m
Mass (-TP version)
<30 (<36)
g
2 pins of 2mm diameter are available on transducer
for PCB soldering.
I
PN
= 50 .. 400 A
Features
Hall effect measuring principle
Galvanic isolation between primary
and secondary circuit
Isolation voltage 2500V
Low power consumption
Wide power supply: 12V to 15V
Primary bus bar option for 50A and
100A 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.
LEM Components
www.lem.com
040720/9
Current Transducers HTB 50 .. 400-P
and HTB 50 .. 100-TP
For the electronic measurement of currents: DC, AC, pulsed, mixed,
with a galvanic isolation between the primary circuit (high power) and
the secondary circuit (electronic circuit).
Notes :
EN 50178 approval pending
1)
-TP version is equipped with a primary bus bar.
2)
Operating at 12V
Vc < 15V will reduce measuring range.
3)
Derating is needed to avoid excessive core heating at high frequency.
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