
Current Transducer HTFS 200..800-P/SP2
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).
All Data are given with a RL = 10 kΩ
Electrical data
Primary nominal Primary current Type RoHS since
current rms measuring range date code
IPN (A) IPM (A)
200 ± 300 HTFS 200-P/SP2 45326
400 ± 600 HTFS 400-P/SP2 45060
800 ± 1200 HTFS 800-P/SP2 45060
VOUT Output voltage (Analog) @ IPVREF ± (1.25·IP/IPN)V
IP = 0 VREF ± 0.025 V
VREF Reference voltage 1) - Output voltage 1/2VC ± 0.025 V
VREF Output impedance typ. 200 Ω
VREF Load impedance ≥ 200 kΩ
R L Load resistance ≥ 2 kΩ
ROUT Output internal resistance < 10 Ω
C L Capacitive loading < 1µF
VCSupply voltage (± 5 %) 5V
ICCurrent consumption @ VC = 5 V 22 mA
Accuracy - Dynamic performance data
XAccuracy 2) @ IPN , TA = 25°C ≤ ± 1 % of IPN
εLLinearity error 0 .. 1.5 x IPN ≤ ± 0.5 % of IPN
TCVOE Temperature coefficient of VOE @ IP = 0 ≤ ± 0.3 mV/K
TCVREF Temperature coefficient of VREF ≤ ± 0.01 %/K
TCVOUT / VREF Temperature coefficient of VOUT / VREF @ IP = 0 ≤ ± 0.2 mV/K
TCVOUT Temperature coefficient of VOUT ≤ ± 0.05% of reading/K
VOM Magnetic offset voltage @ IP = 0,
after an overload of 3 x IPN DC < ± 0.5 % of IPN
tra Reaction time @ 10 % of IPN < 3 µs
trResponse time to 90 % of IPN step < 7 µs
di/dt di/dt accurately followed > 100 A/µs
Vno Output voltage noise (DC ..10 kHz) < 15 mVpp
(DC .. 1 MHz) < 40 mVpp
BW Frequency bandwidth (-3 dB) 3) DC .. 20 kHz
General data
TAAmbient operating temperature - 40 .. + 105 °C
TSAmbient storage temperature - 40 .. + 105 °C
mMass 60 g
Standards EN 50178: 1997
Features
•Hall effect measuring principle
•Galvanic isolation between primary
and secondary circuit
•Low power consumption
•Single power supply +5V
•Ratiometric offset
•TA = -40..+105 °C
•PCB fixation by 4 Ø1 pins
•Insulated plastic case recognized
according to UL 94-V0
Advantages
•Small size and space saving
•Only one design for wide current
ratings range
•High immunity to external
interference.
•VREF. IN/OUT
Applications
•Forklift drives
•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
IPN = 200 - 400 - 800A
070827/4 www.lem.com
LEM reserves the right to carry out modifications on its transducers, in order to improve them, without prior notice.
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Notes :1) It is possible to overdrive VREF with an external reference voltage
between 2 - 2.8 V providing its ability to sink or source approx. 2.5 mA.
2)Excluding offset.
3)Small signal only to avoid excessive heatings of the magnetic core.