Black Split Core Current Sensor Magnetic Circuit Structure High Precision
SCTK681A Series 5A-630A RoHS Split Core Current Transformers with 0.333VAC or 0-500mA output
SCTK681A series split-core current transformer
- Test range: 5 to 630A AC input, output of 0 to 0.333V, 0 to 500mA
- Has been specially designed to facilitate their installation in new or already existing net works.
- They may be installed without opening any cable or bus-bar circuit.
- An internal precision resistor across the secondary winding of the CT provides a low safe voltage output.
- It can save time and the installation costs.
Applications:
- Relay protection device.
- Current and power measurement for electric motors, lighting, air compressor,heating and ventilation system, air-condition equipment and automation – control system.
- Current measurement, monitoring and protection for electrical wiring and equipment.
Electrical Parameter
| Frequency | 50-2KHz |
| Rated Input | 5A-630A |
| Measuring range | 10%In-130%In |
| Rated Output | 0.333V(AC) or 0-500mA |
| Ratio | ≤± 1.0% |
| Phase angle | ≤ ±60min |
| Dielectric strength | 2.5KV/1mA/1min |
| Insulation Resistance | DC500V/100MΩmin |
Mechanical Parameter
| Case | PA /UL94-V0 |
| Bobbin | PBT |
| Core | Silicon steel |
| Internal structure | Epoxy |
| Construction | Tie |
| Operating Temp | －25℃～＋75℃ |
| Operating Humidity | ≤85% |
| Output Connection | UL1015 20AWG Wire(twinsted wire) 2.5m |
Type selection
| P/N |
Rated Input (A) |
Output (mA/V) | Accuracy | Dimensions(mm/inch) | ||||
| Ø | A | B | C | |||||
| SCTK681A-005 |
5-20A (5,8A,10,15,20) |
0-25mA 0.333V |
0.5,1.0,3.0 |
5.0 (0.20) |
31.5 (1.24) |
19.5 (0.77) |
21.0 (0.83) |
|
| SCTK681A-010 |
5-75A (5,10,20,50,75) |
0-50mA 0.333V |
0.5,1.0,3.0 |
10.0 (0.39) |
41.0 (1.61) |
24.0 (0.94) |
26.5 (1.04) |
|
| SCTK681A-016 |
5-150A (5,10,50,100,150) |
0-100mA 0.333V |
0.5,1.0,3.0 |
16.0 (0.63) |
45.5 (0.22) |
29.0 (1.14) |
31.5 (1.24) |
|
| SCTK681A-024 |
10-250A (10,50,100,200,250) |
0-200mA 0.333V |
0.5,1.0,3.0 |
24.5 (0.96) |
65.0 (2.56) |
45.0 (1.77) |
40.0 (1.57) |
|
| SCTK681A-035 |
10-630A (20,100,250,400,600) |
0-500mA 0.333V |
0.5,1.0,3.0 |
35.7 (1.41) |
81.5 (3.21) |
57.0 (2.24) |
51.0 (2.01) |
|
Notes: Product specifications can be customized
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