Siemens Sentron Current transformer, 700:5A

Product Overview The Siemens 4NC5228-2FE21 is a bushing-type current transformer from the SENTRON 4NC series. It is designed for high-precision measurement applications and has a primary rated current of 700 A with a secondary output of 5 A (700/5 ratio). The unit supports an apparent power rating of 5 VA and boasts an accuracy class of 0.2s, making it suitable for metering and monitoring in industrial power distribution systems. Key Features Primary/secondary ratio: 700 A / 5 A Rated apparent power: 5 VA Accuracy class: 0.2s for high measurement precision Bushing-type design (push-through conductor opening) for compact installation Screw-type terminals for secondary connection and assured reliability Touch-protected enclosure (IP20) for safe handling in panel installations Technical Specifications Product Family: SENTRON 4NC bushing-type current transformers Article Number: 4NC5228-2FE21 Rated Primary Current (Ip): 700 A Rated Secondary Current (Is): 5 A Rated Apparent Output (S): 5 VA Accuracy Class: 0.2s Rated Insulation Voltage (Ui): 3 kV Operation Frequency: 50/60 Hz Protection Class: IP20 Ambient Operating Temperature: –30 °C to +55 °C Bus Bar Opening (max): 30 mm diameter for the push-through conductor Width × Height × Depth (approx.): 60 mm × 78.5 mm × 65 mm Compliance & Certifications Designed to meet IEC/EN standards for current transformers used in measurement and monitoring applications RoHS compliant; conforms to Siemens’ material and safety standards Applications Ideal for installation in electrical switchgear, metering boards and power-distribution cabinets where accurate current measurement is required for protection, monitoring or billing purposes. Commonly used in industrial plants, utilities and large-scale installations to sample high currents and feed secondary measurement or protection devices.