參數(shù)資料
型號： APR50-B420L
廠商： LEM
英文描述： LJT 43C 23#20 20#16 PN WALL RE
中文描述： 交流電流傳感器4月，B420L
文件頁數(shù)： 1/2頁
文件大?。?/td> 57K
代理商： APR50-B420L
Electrical data
Primary Nominal Current
I
PN
(A.t.RMS)
Analogue Output Signal
I
OUT
(mA)
Type
10,25,50
50,75,100
100,150,200
200,300,400
4-20
4-20
4-20
4-20
APR 50 B420L
APR 100 B420L
APR 200 B420L
APR 400 B420L
R
L
V
C
V
d
Load resistance
Supply voltage (loop powered)
R.m.s. voltage for AC isolation test,
50/60Hz, 1 mn
Limitation of output current
< 350
+24
5
< 25
V DC
kV
mA
Accuracy-Dynamic performance data
X
e
L
I
OE
I
TC
e
G
t
r
f
Accuracy @
I
,
T
A
= 25°C (without offset)
Linearity (0 .. ±
I
)
Electrical offset current,
T
A
= 25°C
Thermal drift of
I
Thermal drift of the gain (% of reading)
Response time @ 90% of
I
P
Frequency bandwidth (-3 dB)
< ±1
< ±0.5
4
±1
±0.1
< 1000
10 .. 6000
% of
I
PN
% of
I
mA
μ
A/K
%/K
ms
Hz
General data
T
A
T
S
m
Ambient operating temperature
Ambient storage temperature
Mass
Protection type
Reliable isolation according to EN50178, EN61010
Creepage distance
EMC in accordance with EN50082-2
Plastic according to UL94V0, CTI 1
-20 .. +60
-20 .. +85
90
IP20
300
>
5.5
°C
°C
g
V AC
mm
Notes :
Installation and maintenance should be done with power supply disconnected.
AC Current transducer APR-B420L
Split core transducer for the electronic measurement distorted AC
waveforms current, with galvanic isolation between the primary (High
power) and the secondary circuits (Electronic circuit). Switch selectable
ranges and True RMS 4-20mA current output.
I
PN
= 10 .. 400 A
030708/0
Features
VFD and SCR waveforms current
measurement
True RMS output
Split core type
Loop powered 4-20mA current output
DIN mounting & Panel mounting
Eliminates insertion loss
Switch selectable ranges
Advantages
Large aperture for cable up to 18mm
High isolation between primary and
secondary circuits
Easy to mount
Applications
VFD Controlled Loads:
VFD output indicates how the motor
and attached load are operating.
SCR Controlled Loads:
Acurate measurement of phase angle
fired or burst fired (time proportioned)
SCRs. Current measurement gives
faster response than temperature
measurement.
Switching Power Supplies and
Electronic Ballasts:
True RMS sensing is the most
accurate way to measure power
supply or ballast input power.
LEM Components
www.lem.com
Preliminary
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