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Siemens 4NC5112-2CB21 Current Transformer β€” 50/5 A, 1.2 VA

Siemens 4NC5112-2CB21 current transformer for measurement.

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ManufacturerSiemens
Part number4NC5112-2CB21
Primary Current 50 A
Secondary Current 5 A
VA Rating 1.2 VA
Accuracy Class 1.0
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50/5 A Current Ratio 1.2 VA Burden Class 1.0 Accuracy For Measurement Applications Reliable Performance

The Siemens 4NC5112-2CB21 is a precision current transformer designed for accurate measurement and monitoring of AC current in electrical systems. It features a primary to secondary current ratio of 50/5 A and a burden rating of 1.2 VA, ensuring reliable performance with connected measuring instruments. With an accuracy Class of 1.0, it provides dependable readings for power metering and protection applications.

This current transformer is essential for applications requiring the conversion of high primary currents to a lower, standardized secondary current for safe and accurate measurement. Industries such as power generation, distribution, industrial facilities, and building management systems commonly utilize these transformers for metering, protection relays, and system monitoring.

Stanlo Automation, a veteran-owned distributor of surplus industrial automation parts, offers the Siemens 4NC5112-2CB21. We pride ourselves on providing quality components and expert service to ensure your operational needs are met efficiently and cost-effectively. Source your current transformer needs from Stanlo Automation.

Primary Current50 A
Secondary Current5 A
VA Rating1.2 VA
Accuracy Class1.0
TypeCurrent Transformer
Power Metering
Substation Monitoring
Industrial Power Systems
Electrical Panels
Revenue Metering
Power meters Protection relays SCADA systems
Siemens CT 50/5A Siemens Current Sensor
This current transformer is a standard component for 50A primary current measurement applications requiring a 5A secondary output.
Expert tip
Always ensure the primary winding is connected in series with the line conductor and the secondary is connected to a suitable burden, never leave the secondary open-circuited while the primary is energized.
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What is the accuracy class and burden rating of the Siemens 4NC5112-2CB21 current transformer?
The Siemens 4NC5112-2CB21 current transformer has an accuracy Class of 1.0 and a burden rating of 1.2 VA. This ensures precise current measurement for metering and protection circuits.