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CL2-501Y

The ABB CL2-501Y is a current transformer (CT) designed for precise current measurement, protection, and monitoring in low-voltage electrical distribution systems. It converts high primary currents into standardized secondary currents, enabling safe interfacing with protection relays, meters, and monitoring devices.

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Specifications General Type: Current Transformer (CT) Series: ABB CL2 Model: CL2-501Y Application: Current measurement, monitoring, and protection Mounting: Panel or busbar mount Electrical Characteristics Primary Current Rating: 500 A Secondary Current Rating: 5 A (standard) Rated Frequency: 50 / 60 Hz Accuracy Class: 0.5 / 1.0 (depending on version) Rated Burden: Up to 10 VA (depends on application) Insulation Level: 0.72 kV / 1.2 kV (depending on version) Mechanical & Construction Housing Material: Epoxy resin or thermoplastic Terminal Type: Screw terminals or busbar connection Dimensions: Compact and easy to install Weight: Approx. 0.5–1 kg Environmental Conditions Operating Temperature: –25 °C to +55 °C Storage Temperature: –40 °C to +70 °C Humidity: 0–95% RH, non-condensing Ingress Protection: IP20 (panel mounted) Standards & Certifications Standards Compliance: IEC 61869-2, IEC 60044-1 Safety Approvals: CE marked, industrial-grade standards Applications: Compatible with ABB protection relays, meters, and monitoring devices Features High accuracy for protection and metering applications Compact and robust design for easy installation Reliable long-term performance in industrial and commercial environments Suitable for integration with relays, meters, and monitoring systems