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Home Product CTF50-500A/5A Split Core Current Transformer 500A/5A for Energy Metering Power Monitoring
CTF50-500A/5A miniature open current transformer snap-on transformer for retrofitting

CTF50-500A/5A Split Core Current Transformer 500A/5A for Energy Metering Power Monitoring

CTF50 current transformer
500A current sensor
5A secondary current
CTF50-500A/5A
CTF50 current transformer designed for 500A primary current sensing with 5A secondary current output. Compact, high-accuracy solution for power monitoring and energy measurement in industrial and electrical systems.
Categories:Test & Measurement
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Product Description

The CTF50 current transformer is a robust 500A current sensor designed for high-precision AC current measurement in industrial power systems. It features a primary input rating of 500A and delivers a standardized 5A secondary current output, compatible with most analog metering and protection devices. With a single input channel and direct compatibility with energy meters, relays, and PLC modules, it operates within 0-600V insulation voltage and -25°C to +85°C temperature ranges, suitable for grid monitoring, renewable energy systems, and industrial automation. Its split-core design enables non-intrusive installation without circuit interruption. Advantages include ±0.5% accuracy, 1000V impulse withstand, and IP54 protection, though its fixed 500A/5A ratio limits dynamic range flexibility. The toroidal form factor measures 125mm outer diameter with 40mm core opening, optimized for busbar integration.
Parameter Specification
Model CTF50-500A/5A
Type CTF50 Current Transformer
Primary Rated Current 500A Current Sensor
Secondary Rated Current 5A (±0.2%)
Accuracy Class 0.5S
Phase Displacement ≤15'
Frequency Range 50Hz – 60Hz
Rated Burden 2.5VA – 15VA
Insulation Class 3kV RMS
Operating Temperature -40°C to +85°C
Storage Temperature -55°C to +105°C
Overload Capacity 2× rated current (continuous)
Mounting DIN rail or panel mounting
Conductor Material High-purity copper
Protection Level IP65 (non-ventilated)
Compliance IEC 61869-1, EN 60044-1
question:Can we apply for low-value declaration for shipments?
answer:Yes, low-value declaration is possible depending on destination regulations. Contact us for specific requirements and eligibility.
question:Can you provide shipment photos or purchase dates for similar products?
answer:We share product details upon request, subject to confidentiality agreements. Contact our team for specific inquiries.
question:Why is a handling fee charged?
answer:Handling fees cover logistics, documentation, and administrative costs to ensure smooth and secure transaction processing.
question:Can the company ensure stable product supply?
answer:Yes, we maintain long-term partnerships and strict inventory management.
question:Why is there a transaction fee?
answer:The fee covers payment processing and administrative costs for secure transactions.
question:Can we apply for low-value declaration for shipments?
answer:Yes, low-value declaration is possible depending on destination regulations. Contact us for specific requirements and eligibility.
question:Can you provide shipment photos or purchase dates for similar products?
answer:We share product details upon request, subject to confidentiality agreements. Contact our team for specific inquiries.
question:Why is a handling fee charged?
answer:Handling fees cover logistics, documentation, and administrative costs to ensure smooth and secure transaction processing.
question:Can the company ensure stable product supply?
answer:Yes, we maintain long-term partnerships and strict inventory management.
question:Why is there a transaction fee?
answer:The fee covers payment processing and administrative costs for secure transactions.
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