DC Immune Current Sensors

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Taehwatrans’ DC resistant current sensors show high linearity over the whole primary current range and very low temperature drift. Thanks to their anti-tampering capability, DC immune CTs are widely used in smart metering applications around the globe.

Application
  • Accuracy DC Immune Electronic Energy Meter conforming to IEC 62053-21 (former IEC 61036)
  • Smart Grid Application
  • Accurate Measurement under DC Components
  • Accurate AC Measurement with Anti Tampering
  • Immunity to DC Magnets for option
  • In-home Display
General Features
  • Meeting International Standard IEC 61869-2
  • Excellent Linearity & Precision
  • Steady Phase Shift & No Saturation in DC factor
  • Stability from External Magnetic Field
  • Possible to adopt the immunity of DC Magnets
  • High Potential Voltage unto 4.0 kV per min
  • RoHS Compliant

Supreme DC Immune Grade in Perfect Measurement of AC & DC Component

Standard Accuracy : Class 0.5

Specification

Standard Accuracy: Class 0.5 f=50Hz, Rb=1Ω, PF=1.0, unit: percent / minute
Model NO Current Ratio Imax Idc DCR(Ω)
±6%
Ip = 0.25A Ip=5A 0.25-5A
Ratio Var
0.25-5A
Phase Var
Ratio Err. Phase Err. Ratio Err. Phase Err.
TD35VC 2500:1 72A 40A 107Ω -0.3±0.5% 420'±30' -0.3±0.5% 417'±30' 0.1% 3'
TD35L
TD40V 2500:1 80A 40A 98Ω -0.3±0.4% 250'±20' -0.3±0.4% 250'±20' 0.1% 2'
TD40L
TD61L 2500:1 72A 60A 61Ω -0.3±0.5% 240'±25' -0.3±0.5% 240'±25' 0.1% 2'
TD62V 2500:1 100A 60A 51Ω -0.5±0.5% 300'±25' -0.5±0.5% 300'±25' 0.1% 2'
TD62L
TD120V 2500:1 180A 120A 51Ω -0.25±0.25% 200'±25' -0.5±0.5% 200'±25' 0.1% 1'
TD120L
5A Rating Accuracy Class: 0.1 / 0.2 f: 50Hz
Model NO Current Ratio Imax Idc DCR(Ω)
±6%
Ip = 0.25A Ip=5A 0.25-5A
Ratio Var
0.25-5A
Phase Var
Ratio Err. Phase Err. Ratio Err. Phase Err.
TD77V 2500:1 72A 40A 85Ω ±0.5% 230'±20' ±0.5% 220'±20' 0.1% 8'
TD77L
TD71V 2500:1 100A 60A 81Ω ±0.8% 310'±20' ±0.5% 310'±10' 0.1% 5'
TD71L
TD76V 2500:1 180A 100A 41Ω -0.5±0.5% 230'±20' -0.5±0.5% 230'±20' 0.1% 2'
TD76L

Accurate DC Immune Grade in Anti-tampering

Standard Accuracy : Class 1.0

Specification

Standard Accuracy : Class 1.0 f=50Hz, Rb=1Ω, PF=1.0, unit: percent / minute
Model NO Current Ratio Imax Idc DCR(Ω)
±6%
Ip = 0.25A Ip=5A 0.25-5A
Ratio Var
0.25-5A
Phase Var
Ratio Err. Phase Err. Ratio Err. Phase Err.
TD41L 2500:1 72A 40A 149Ω -0.03±
0.07%
7'±5' -0.03±
0.07%
5'±5' 0.10% 3'
TD65L 2500:1 75A 60A 132Ω -0.03±
0.07%
7'±5' -0.03±
0.07%
5'±5' 0.10% 3'
TD81L 2500:1 100A 72A 132Ω -0.03±
0.07%
7'±5' -0.03±
0.07%
5'±5' 0.10% 3'
TD121L 2500:1 120A 120A 85Ω -0.03±
0.07%
7'±5' -0.03±
0.07%
5'±5' 0.10% 3'

Drawing

Standard Accuracy : Class 1.0

PCB Mountable Type Wire Lead Type Accurate-DC-Immune-Grade-in-Anti-tampering_drawing

Dimension

PCB Mountable Type unit: mm/inch
Model NO A(min) B(max) C(max) D(max) E(±0.3) F(±0.3) G(±0.5) H(±0.3) I
TD35VC 6.8
0.268'
25.0
0.984'
11.0
0.433'
23.5
0.925'
15.1
0.594'
19.1
0.752'
3.0
0.118'
9.1
0.358'
TD77V
TD40V 8.9
0.350'
27.5
1.083'
17.0
0.669'
25.3
0.669'
15.1
0.594'
19.1
0.752'
3.0
0.118'
15.1
0.594'
TD71V 11.2
0.441'
28.7
1.130'
17.0
0.669'
26.9
1.059'
15.1
0.594'
19.1
0.752'
3.0
0.118'
15.1
0.594'
TD62V 12.9
0.508'
39.3
1.547'
14.0
0.551'
38.0
1.496'
25.2
0.992'
32.8
1.291'
3.0
0.118'
12.1
0.476'
TD76V
TD120V
Wire Lead Type unit: mm/inch
Model NO A(min) B(max) C(max) D(max) E(±0.3) F(±0.3) G(±0.5)
TD35L 6.9
0.272'
23.6
0.930'
11.0
0.433'
26.8
1.055'
7.1
0.280'
71.0
2.795'
3.0
0.118'
TD77L
TD40L 11.2
0.441'
28.7
1.130`'
17.0
0.669'
26.9
1.059'
15.1
0.594'
71.0
2.795'
3.0
0.118'
TD71L
TD41L 8.5
0.335'
30.1
1.185'
18.9
0.744'
31.6
1.244'
4.7
0.185'
135.0
5.315'
3.0
0.118'
TD81L
TD61L 8.0
0.315'
30.5
1.201'
15.0
0.591'
31.5
1.240'
6.0
0.236'
71.0
2.795'
3.0
0.118'
TD65L 11.2
0.441'
30.5
1.201'
15.3
0.602'
31.9
1.256'
4.0
0.158'
71.0
2.795'
3.0
0.118'
TD62L 12.9
0.508'
37.5
1.476'
14.0
0.551'
41.3
1.626'
10.3
0.406'
68.0
2.677'
3.0
0.118'
TD76L
TD120L
TD121L 11.0
0.433'
35.7
1.406'
15.6
0.614'
37.8
1.488'
4.7
0.185'
135.0
5.315'
3.0
0.118'

Secondary Burden & Output Voltage Graph

Accurate-DC-Immune-Grade-in-Anti-tampering_graph

3 Phase DC Immune Current Sensors (DC Magnet Shielded)

Standard Accuracy : Class 0.5

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Specification

Standard Accuracy : Class 0.5 f=50Hz, Rb=1Ω, PF=1.0, unit: percent / minute
Model NO Current Ratio Imax Idc DCR(Ω)
±6%
Ip = 0.25A Ip=5A 0.25-5A
Ratio Var
0.25-5A
Phase Var
Ratio Err. Phase Err. Ratio Err. Phase Err.
TD61LU 2000:1 72A 60A 46Ω ±0.5 300±25 ±0.5 300±25 0.1% 2'

Dimension

unit: mm/inch
Model NO A(min) B(max) C(max) D(max) E(max) F(±0.3)
TD61LU 8.0
0.315'
32.9
1.295'
17.3
0.681'
35.3
1.390'
6.7
0.264'
140.0
5.512'

Drawing

Standard Accuracy : Class 0.5

3-Phase-DC-Immune-Current-Sensors-drawing

Secondary Burden & Output Voltage Graph

3-Phase-DC-Immune-Current-Sensors-graph