The SCTK751 series split-core current transformer features an interlocking connector and hinge structure, specifically designed for current measurement and electrical equipment, ensuring high precision, safe portability, and easy installation. The product features a robust and reliable structure and supports non-contact measurement with a wide inner window for clamping large cables. It is suitable for current measurement, motor monitoring, and air conditioning equipment. It is an ideal choice for split-core current transformer applications in power monitoring and industrial automation.
Features
- Measuring range – 5 to 5000A
- Output – 0.333V or 0 to 0.5A
- Split-core design – safe and portable
- Wide inner window for clamping large cables
- Interlocking connector and hinge structure
- Multiple sizes adapt to existing installations
- Accuracy class – 1.0
- RoHS certified
Applications
- Electrical line and equipment current measurement
- Control and protection
- Motor AC current measurement
- Lighting systems
- Air conditioning equipment
- HVAC temperature control
- Power management
- Building automation systems
Electrical Parameter
| Frequency |
50-60Hz |
| Rated Input |
5A-5000A |
| Measuring range |
10%In-130%In |
| Rated Output |
0.333V(AC) or 0-500mA |
| Ratio |
± 1.0％ |
| Phase angle |
≤ ±90min |
| Dielectric strength |
2.5KV/1mA/1min |
| Insulation Resistance |
DC500V/100MΩmin |
Mechanical Parameter
| Case |
PC /UL94-V0 |
| Bobbin |
PBT |
| Core |
Permalloy |
| Internal structure |
Epoxy |
| Construction |
Tie |
| Operating Temp |
－25℃～＋75℃ |
| Operating Humidity |
≤85% |
| Output Connection |
UL1015 22AWG Wire(twinsted wire) 2.0m |
Type selection
| P/N |
Rated Input (A) |
Output (mA/V) |
Accuracy |
Dimensions(mm/inch) |
|
|
|
|
A |
B |
C |
D |
E |
| SCTK751A |
5-200A (5,10,30,50,75,100,125,150,200) |
0-13.3mA 0.333V |
1.0 |
50.8 (2.00) |
53.3 (2.09) |
15.0 (0.59) |
19.1 (0.75) |
19.1 (0.75) |
| SCTK751B |
10-400A (10,50,75,150,200,250,300,400) |
0-26.6mA 0.333V |
1.0 |
59.6 (2.35) |
62.7 (2.47) |
21.0 (0.83) |
19.1 (0.75) |
19.1 (0.75) |
| SCTK751C |
50-630A (50,100,125,200,250,400,600,630) |
0-66.6mA 0.333V |
1.0 |
82.5 (3.25) |
85.1 (3.35) |
25.6 (1.01) |
31.8 (1.25) |
31.8 (1.25) |
| SCTK751D |
100-2000A (100,250,400,630,800A,1000,2000) |
0-200mA 0.333V |
1.0 |
121.0 (4.76) |
127.0 (5.00) |
30.4 (1.19) |
50.8 (2.00) |
50.8 (2.00) |
| SCTK751E |
200-3000A (200,250,400,630,1500,2500,3000) |
0-300mA 0.333V |
1.0 |
118.0 (4.65) |
133.0 (5.24) |
24.0 (0.94) |
68.0 (2.68) |
80.0 (3.15) |
| SCTK751F |
400-5000A (400,800,1000,1500,2000,3000,5000) |
0-500mA 0.333V |
1.0 |
146.0 (5.75) |
190.5 (7.50) |
35.6 (1.40) |
76.2 (3.00) |
127.0 (5.00) |
Directions for use
Notes: Product specifications can be customized
FAQ
Q: How do you establish long-term good business relationships with us?
A: We insist on high-quality products and fast delivery to ensure our customers win more projects. At the same time, we treat every customer as a friend and sincerely do business with them to build long-term friendship.
Q: How do you control quality?
A: We ensure every product meets specifications through incoming quality inspection (IQC) and 100% quality testing before shipment.
Q: How to apply for samples? What is the lead time?
A: You can submit a sample application through our website or email. Samples are free of charge and will be shipped within 3-5 working days. Mass order lead time is generally 2-8 weeks; custom products will be confirmed separately.
