AC/DC Current transducer AHR-B5
IPN = 500 .. 2000 A
The transducer for the electronic measurement of DC & distorted AC
waveform currents, with galvanic isolation between the primary circuit
(power) and the secondary circuit (measurement).
True RMS 0-5 V voltage output.
Electrical data
Features
Primarynominal
DC & AC current
IPN (At rms)
Primary AC current
max. peak value 1)
IP (A)
Output voltage
(Analog)
VOUT (VDC)
Type
· DC + distorted AC waveform currents
measurement
· True RMS output
500
800
1000
1500
2000
2000
2500
2000
2500
3000
0-5
0-5
0-5
0-5
0-5
AHR 500 B5
AHR 800 B5
AHR 1000 B5
AHR 1500 B5
AHR 2000 B5
· Busbar or panel mounting
· Split core type
· Insulated plastic case recognized
according to UL94-V0.
RL
VC
IC
VSL
ÎP
Load resistance
Supply voltage
Current Consumption
Output voltage limitation
Overload capability (Ampere Turns)
³ 10
kW
+ 20 .. 50 V DC
Advantages
35
< 7
mA
V
· High isolation between primary and
secondary circuits
30000
At
· Eliminates insertion loss
· Easy installation.
Performance data
X
Accuracy @ IPN, TA = 25°C (excluding offset)
Linearity error (1% of IPN .. ± IPN)
Electrical offset voltage, TA = 25°C
Temperature coefficient of VOE (0 .. + 60 °C)
(- 40 .. + 70 °C)
Temperature coefficient of VOUT (% of reading)
Response time to 90% of IPN step
Frequency bandwidth (±1 dB)
< ± 1 % of IPN
< ± 1.0 % of IPN
< ± 1.0 % of IPN
Applications
e
L
VOE
· AC power supplies or Motors:
True RMS current sensing - the most
accurate way to monitor power supply
or motor input power
TCVOE
± 2.0
± 4.0
± 0.15
< 150
mV/K
mV/K
%/K
TCVOUT
tr
BW
m s
DC, 20 .. 6000Hz
· VFD Controlled Loads:
VFD output current monitoring to
indicate how the motor and the
attached load are operating
General data
TA
TS
m
Ambient operating temperature
Ambient storage temperature
Mass
- 40 .. + 70 °C
- 40 .. + 85 °C
· SCRs or Switch-mode Rectifiers:
Accurate measurement of output
current
650
g
IPxx
Protection degree
IP20
· Renewable Energy Installations or
Backup Batteries:
Continuous condition minitoring
allowing automatic failure detection/
anticipation.
Note : 1) The max. peak AC current is the highest peak level of the primary signal that is
taken into account for accurate True r.m.s. calculation.
Yet the device is designed for maximum continuous true r.m.s. value equal to IPN
whereas the output is limited by the above specified output limitation.
,
Application domain
· Energy and Automation
Page 1/3
LEM reserves the right to carry out modifications on its transducers, in order to improve them, without prior notice.
061128/6
www.lem.com