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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).
I = 50 .. 400 A
PN
Electrical data
Primary nominal
r.m.s. current
IPN (A)
50
100
200
300
400
Primary current
measuring range
IP (A)
±150
±300
±500
±600
±600
Type
HTB 50-P, HTB 50-TP1)
HTB 100-P, HTB 100-TP1)
HTB 200-P
HTB 300-P
HTB 400-P
VC
IC
V
d
R
IS
V
OUT
ROUT
RL
Supply voltage (±5 %)2)
Current consumption
R.m.s. voltage for AC isolation test, 50/60 Hz, 1 mn
Isolation resistance @ 500 VDC
Output
voltage
@
±
I,
PN
R
L
=
10
k,
T
A
=
25°C
Output internal resistance
Load resistance
±12 .. ±15
<±15
2.5
>500
±4
100
10
V
mA
kV
M
V
k
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
Accuracy - Dynamic performance data
X
ε
L
VOE
VOH
VOT
εTC G
t
r
f
Accuracy @ I , T = 25°C (without offset)
PN A
Linearity (0 .. ± I )
PN
Electrical offset voltage, TA = 25°C
Hysteresis offset voltage @ IP = 0;
after an excursion of 3 x IPN
Thermal drift of VOE
HTB 50-(T)P
HTB 100-(T)P..400-P
Thermal drift (% of reading)
Response time @ 90% of I
P
Frequency bandwidth (-3 dB)3)
<±1
<±1
<±30
% of I
PN
% of I
PN
mV
<±1 % of IPN
<±2.0 mV/K
<±1.0 mV/K
<±0.1
%/K
<3 µs
DC .. 50 kHz
General data
TA Ambient operating temperature
TS Ambient storage temperature
m Mass (-TP version)
-20 .. +80
-25 .. +85
<30 (<36)
2 pins of Ø2mm diameter are available on transducer
for PCB soldering.
°C
°C
g
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.
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.
030529/7
LEM Components
www.lem.com

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HTB 50 .. 400-P
Back view
39
Left view
Positive Current Flow
14 MAX.
4-0.635x0.635
4321
24.5
5.5
3-P=2.5
Bottom view
10
HTB 50 .. 100-TP
Back view
19
39
2-d2
Mounting Pins
3
Secondary Pin Identification
1 +Vc
2 -Vc
3 Output
4 0V
14 MAX. Left view
4-0.635x0.635
4 321
1.5
1.5
10
3-P=2.5 10.5 3 3
6.5 3.25
6-1.5x1.5
Bottom view
3
1.5
Positive Current Flow
Secondary Pin Identification
1 +Vc
2 -Vc
3 Output
4 0V
LEM reserves the right to carry out modifications on its transducers, in order to improve them, without previous notice.