The CTBC120 split-core AC/DC sensitive residual current transformer core detects circuit leakage and fault current for insulation monitoring devices. Rated insulation voltage 800V CAT III, output capacity 0.5VA, compatible with 50/60Hz power frequency. This split open ring transformer core detects both AC and DC leakage current, widely matched with electrical insulation monitoring systems. The split open ring design allows fast installation without cutting cables, suitable for global 50/60Hz power grids.
Key Specifications
• Structure: Split openable magnetic core
• Measuring target: AC & DC residual leakage current
• Rated insulation voltage: 800V CAT III
• Output capacity: 0.5VA
• Operating frequency: 50/60Hz
• Dimensions: 21.1×13.9×9.6 cm
• Weight: 1.39kg (≤1390g per official datasheet)
• Protection class: Internal built-in components IP40, terminals IP20
• Operating temperature: -25℃ ~ 70℃
Product Advantages
1. Split ring design for easy wiring and disassembly
2. Measurement accuracy up to ±1%, precise and stable detection
3. Withstands short-time large overload current for reliable operation
4. UL94 V-0 flame retardant housing, safe for industrial applications
5. Universally compatible with various electrical monitoring modules
Application Scenarios
New energy equipment, industrial power distribution, rail transit, DC charging piles and other occasions requiring insulation leakage monitoring
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