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LMZK Series Split Core Current Transformer is suitable for current measurement and microprocessor protection of distribution equipment of below 10KV or 35KV cable line in AC power system. It is widely used not only incompact fully insulated Ring Main Unit , but also in combined substation and cable take-off boxes, thanks to its features of small volume, light weight, open feasibility and convenient installment. It is very convenient that this CT can be directly installed at connected output and input cables.

Technical Parameter:
| No. | Item | Specification |
| 1 | Rated Input Current | AC500A |
| 2 | Rated Output Current | AC 1A |
| 3 | Load | 0.5VA |
| 4 | Rated Accuracy Error | +/- 0.5% |
| 5 | Linear Range | 5%In ~120%In |
| 6 | Frequency | 50Hz ~60Hz |
| 7 | Working Temperature Range | -20°C~+70°C |
| 8 | Terminal Cable | 2*1.5mm2+1*2.5mm2 |
| 9 | Dielectric Withstanding Voltage | 3000V/0.3mA/3S |
Wiring Diagram:

Specification:
Application | Testing Current Transformer | Protection Current Transformer | ||||
Current Ratio (A) | Accuracy & Rated Output (VA) COSΦ=0.8 | |||||
0.5 | 1 | 3 | 10P5 | 10P10 | 10P15 | |
300/1 |
| 2.5 | 3.75 | 1.5 |
|
|
400/1 | 2.5 | 3.75 | 5 | 2.5 | 1.5 |
|
500/1 | 3.75 | 5 | 5 | 2.5 | 2.5 | 1.5 |
600/1 | 5 | 5 | 5 | 3.75 | 3.75 | 1.5 |
300/5 | 1.5 | 2.5 | 3.75 | 2.5 | 1.5 |
|
400/5 | 2.5 | 3.75 | 5 | 3.75 | 2.5 |
|
500/5 | 3.75 | 5 | 5 | 3.75 | 3.75 | 2.5 |
600/5 | 5 | 5 | 5 | 5 | 3.75 | 2.5 |
Main Application:
Our Split-core current transformer can be mounted to existing panels, such as control centers or load centers, to measure or monitor wattage. Which is widely used for:
· Utilities pole probe monitoring, measurement
· Power distribution line monitoring
· Building, factory energy management system
· Network equipment
· Current balancing monitoring
· Smart grid application, energy efficiency
· Measurement, moniting of low current in outdoor application

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