DC Current transducer DK-C420
A transducer for the electronic measurement DC current, with galvanic
isolation between the primary (High power) and the secondary circuits
(Electronic circuit) with current output.
Electrical data
Features
Primary Nominal Current
IPN (A.t)
5,10,20
50,75,100
Vc
RL
Supply voltage (not isolated)
Load resistance (max)
Vb
Vd
f
Ic
Analogue Output Signal1)
IOUT (mA)
4-20
4-20
20-50 V DC
• DC Measurement
Types
DK 20 C420
DK 100 C420
22-38
650
V AC
Ω
Rated voltage (CAT III, PD2)
Isolation voltage
150
3
V AC
kV
Frequency
Current consumption (max)
DC
100
mA
• Unipolar and bipolar measurement
• Current output
• Jumper selectable ranges
• Panel mounting
• Extended measuring range.
Advantages
• Large aperture
• High isolation between primary and
secondary circuits
• Easy to mount
• No insertion losses.
Accuracy - Dynamic performance data
X
Accuracy @ IPN, TA=25°C
±1
εL
tr
Linearity error
Response time @ 90% of IPN
± 0.75
< 100
%
%
mS
General data
TA
Ambient operating temperature (0-95% RH)
- 20 .. + 50
°C
TS
m
Ambient storage temperature
Mass
Protection type
Safety
EMC
- 20 .. + 85
120
IP 20
IEC 61010-1
EN 61326 2)
°C
g
Applications
• Battery Banks
- Monitors load current
- Monitors charging current
- Verifies operation.
• Transportation
Measures traction power or auxiliary
loads.
• Electric Heating Elements
Faster response than temperature
sensors.
Options on request
Options
Bipolar output :
IPN = 5 .. 100A
DK 20 C420 B
DK 100 C420 B
•
•
DIN mounting
Bipolar output.
Notes : 1) For 4-20mA outputs models, no saturation outputs up to 23 mA
2)
For IEC 61000-4-3, IEC 61000-4-6 and IEC 61000-4-4 criterion B :
temporary impairment to operational behavior.
Remark : Temperature of the conductor should not exceed 60°C.
050415/6
LEM reserves the right to carry out modifications on its transducers, in order to improve them, without previous notice.
LEM Components
page 1/2
www.lem.com
Dimensions
DK - C420
(unit : mm, 1mm = 0.0394 inch)
73.5
27
63.5
19.1
36
26
98
18
5
85.7
Standard Output
Mechanical characteristics
output in mA
• General tolerance
• Primary aperture
± 1 mm
19.1 mm dia.
• Panel mounting
Distance between holes
2 holes ∅ 4.5 mm
77.3 mm
20
4
Connections
• 2 x UNC8 Cylindric Head
20-50 VDC
22-38
22-26 VAC/DC
+ IP
Bipolar Output
output in mA
Output
20
12
4
- Dead front captive screw terminals
- 12-22AWG solid or stranded
- IP
0
+ IP
050415/6
LEM reserves the right to carry out modifications on its transducers, in order to improve them, without previous notice.
LEM Components
page 2/2
www.lem.com