The GCT open type current transformer uses a split-core clamp-on design for current measurement and power monitoring applications. It can be installed around existing insulated cables without disconnecting the primary conductor, making it suitable for distribution panels and smart energy monitoring systems.
Key Features
- Clamp-on split-core design for easier installation.
- Compact size with a wide measuring range.
- Suitable for installation in distribution panels.
- Good output linearity across the listed current ranges.
- Direct interface design.
- Overvoltage protection with zener diode.
- Shell flame rating: UL 94V-0.
Applications
- Current measurement and monitoring.
- Power consumption monitoring.
- Home energy management systems.
- Building energy management systems.
- Power monitoring systems for distribution equipment.
Model Range
| Part Number | Rated Primary Current | Optional Primary Current Specifications | Conventional Turns Ratio |
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| GCT-10 | 1-60A | 5A, 20A, 30A, 40A, 50A, 60A | 1000:1 to 3000:1 |
| GCT-16 | 5-100A | 50A, 100A | 1000:1 to 5000:1 |
| GCT-24 | 5-300A | 100A, 120A, 200A, 250A | 1000:1 to 8000:1 |
| GCT-36 | 5-600A | 200A, 400A, 600A | 1000:1 to 12000:1 |
| GCT-50 | 5-1000A | 400A, 600A, 800A, 1000A | 1000:1 to 12000:1 |
General Specifications
| Accuracy | Milliampere-level accuracy: 0.5%; ampere-level accuracy follows the listed table data |
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| Output cable lead | UL2468 24AWG, UL2468 16AWG, UL1015 22AWG; optional 1m lead length |
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| Applicable frequency | 50/60Hz |
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| Maximum circuit voltage | Less than AC300V to AC600V for insulated cable |
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| Withstanding voltage | AC4000V for 1 minute between output terminal and outer case |
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| Insulation resistance | More than 100MΩ by 500V insulation tester between output terminal and outer case |
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| Operational temperature | -25℃ to 60℃, less than 80%RH |
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| Storage temperature | 30℃ to 90℃, less than 80%RH |
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| Flame rating | Shell UL 94V-0; secondary line UL VW-1 |
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