CT50-T View Datasheet(PDF) - LEM Industrial
Part Name
Description
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CT50-T Datasheet PDF : 2 Pages
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Current Transducer CT 50-T
For very accurate measurements of currents : DC, AC, pulsed...,
with a galvanic isolation between the primary circuit (high power)
and the secondary circuit (electronic circuit).
Preliminary
IPN = 50 A
Electrical data
I
PN
IP
V
OUT
KN
R
L
CL
t
C
VC
I
C
Vd
Primary nominal r.m.s. current
Primary current, measuring range
Analog output voltage
Conversion ratio
Load resistance
Capacitance loading
Output short-circuit duration 1)
Supply voltage (± 5 %)
Current consumption
R.m.s. voltage for AC isolation test, 50 Hz, 1 mn
50
A
0 .. ± 75
A
5
V
50 A / 5 V
> 500
Ω
≤5
nF
∞
s
± 15
V
90 + V / R mA
OUT L
6
kV
Accuracy - Dynamic performance data
X G Overall accuracy @ I PN
V
Offset voltage @ I = 0
O
P
- 25°C .. + 70°C
T = 25°C
A
- 25°C .. + 70°C
± 0.1
%
Typ Max
± 0.4 mV
± 0.6 mV
f
Frequency bandwidth (- 3 dB) @ 10 % of I PN
DC .. 500
kHz
General data
TA
Ambient operating temperature
T
Ambient storage temperature
S
m
Mass
Standards 2)
- 25 .. + 70
°C
- 40 .. + 85
°C
670
g
EN 50178
Notes : 1) If the short-circuit has a duration more than 1 s, the primary current of
the supply voltage must be interrupted for a short time to restore the
transducer to proper working order. The internal protection is done by
PTC resistors
2) A list of corresponding tests is available
Features
•Closed loop (compensated) current
transducer
•Insulated plastic case recognized
according to UL 94-V0
•Patent pending.
Advanced features
•f = 500 kHz
•X G = ± 0.1 % (- 25°C .. + 70°C).
Advantages
•Excellent accuracy
•Very good linearity
•Low temperature drift
•Optimized response time
•Wide frequency bandwidth
•No insertion losses
•High immunity to external
interference
•Current overload capability.
Applications
•AC variable speed drives and servo
motor drives
•Static converters for DC motor drives
•Battery supplied applications
•Uninterruptible Power Supplies
(UPS)
•Switched Mode Power Supplies
(SMPS)
•Power supplies for welding
applications.
980814/5
LEM Components
w w w .lem.com
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