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APR400-B420L Datasheet

  • APR400-B420L

  • AC Current transducer APR-B420L

  • 2頁

  • LEM   LEM

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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
Preliminary
Electrical data
Primary Nominal Current
I
PN
(A.t.RMS)
10,25,50
50,75,100
100,150,200
200,300,400
R
L
V
C
V
d
Analogue Output Signal
I
OUT
(mA)
4-20
4-20
4-20
4-20
Type
Features
鈥?/div>
VFD and SCR waveforms current
measurement
鈥?/div>
True RMS output
鈥?/div>
Split core type
鈥?/div>
Loop powered 4-20mA current output
鈥?/div>
DIN mounting & Panel mounting
鈥?/div>
Eliminates insertion loss
鈥?/div>
Switch selectable ranges
APR 50 B420L
APR 100 B420L
APR 200 B420L
APR 400 B420L
< 350
+24
5
< 25
鈩?/div>
V DC
kV
mA
Load resistance
Supply voltage (loop powered)
R.m.s. voltage for AC isolation test, 50/60Hz, 1 mn
Limitation of output current
Advantages
鈥?/div>
Large aperture for cable up to 脴18mm
鈥?/div>
High isolation between primary and
Accuracy-Dynamic performance data
secondary circuits
鈥?/div>
Easy to mount
< 鹵1
% of
I
PN
< 鹵0.5 % of
I
PN
4
mA
鹵1
碌A(chǔ)/K
鹵0.1
%/K
< 1000
ms
10 .. 6000
Hz
蔚
X
L
I
OE
I
OT
TC
蔚
G
t
r
f
Accuracy @
I
PN
,
T
A
= 25擄C (without offset)
Linearity (0 .. 鹵
I
PN
)
Electrical offset current,
T
A
= 25擄C
Thermal drift of
I
OE
Thermal drift of the gain (% of reading)
Response time @ 90% of
I
P
Frequency bandwidth (-3 dB)
Applications
鈥?/div>
VFD Controlled Loads:
VFD output indicates how the motor
and attached load are operating.
鈥?/div>
SCR Controlled Loads:
Acurate measurement of phase angle
fired or burst fired (time proportioned)
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
擄C
-20 .. +85
擄C
90
g
IP20
300
V AC
>
5.5
mm
SCRs. Current measurement gives
faster response than temperature
measurement.
鈥?/div>
Switching Power Supplies and
Electronic Ballasts:
True RMS sensing is the most
accurate way to measure power
supply or ballast input power.
Notes :
Installation and maintenance should be done with power supply disconnected.
030708/0
LEM Components
www.lem.com

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