C.T -211 | 21 Series CT, Ratio: 1500/5, Burden :15VA, Class:1
1. Technical Specifications
Type: Current Transformer (CT), 21 Series.
Ratio: 1500/5 A – steps down the primary current from 1500A to 5A for safe measurement and protection.
Burden: 15VA – capable of supplying connected measuring or protection devices without reducing accuracy.
Accuracy Class: Class 1 – maximum permissible error of 1% at rated conditions.
Operating Frequency: Designed for standard AC frequencies (50/60 Hz).
Construction: Sturdy and insulated body to ensure safety and withstand industrial environments.
2. Key Features
Precise measurement with minimal error thanks to Class 1 accuracy.
High current handling capacity for large-scale electrical systems.
Rugged construction for long service life in harsh industrial conditions.
Simple installation suitable for various panel and switchgear setups.
Versatile compatibility with metering, monitoring, and protection devices.
3. Applications
Energy metering in medium and high-voltage power distribution systems.
Protection systems for tripping circuit breakers during overload or fault.
Industrial and utility substations.
Large commercial and industrial electrical panels.
Power monitoring and control in infrastructure projects.






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