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Home Product YDBH0.66-40I-A-300/5A Current Transformer 0.66kV 300A/5A Energy Metering Sensor
Current transformer YDBH0.66-40I-A-300/5A closed transformer

YDBH0.66-40I-A-300/5A Current Transformer 0.66kV 300A/5A Energy Metering Sensor

YDBH Current Transformer
300/5A Current Transformer
0.66kV Current Transformer
YDBH0.66-40I-A-300/5A
YDBH Current Transformer, 300/5A ratio, 0.66kV rated voltage. Ideal for precision current measurement and protection in low-voltage distribution systems, featuring compact design, high accuracy, and robust insulation. Suitable for energy monitoring, electrical equipment control, and industrial applications. Complies with IEC standards for safety and reliability.
Categories:Test & Measurement
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Product Description

The YDBH Current Transformer model YDBH0.66-40I-A-300/5A is a compact 0.66kV-rated instrument designed for accurate current measurement in medium-voltage systems. Featuring a 300/5A current ratio, it offers a single input channel for primary current measurement and outputs a standardized 5A secondary signal for direct connection to monitoring modules or protective relays. Compatible with multiple industrial-grade devices, it supports RS485 communication for seamless integration into SCADA systems. Operating within 0.66kV AC and temperatures from -25°C to +70°C, it is ideal for power distribution, renewable energy installations, and industrial automation. Advantages include Class 0.5 accuracy, flame-retardant housing, and vibration resistance. No integrated battery or display. Detection range covers 50Hz-60Hz power networks.
Parameter Specification
Model YDBH0.66-40I-A-300/5A
Rated Primary Current 300A
Rated Secondary Current 5A
Rated Voltage 0.66kV
Accuracy Class 0.5
Frequency 50Hz/60Hz
Insulation Class Class E
Thermal Current Rating 1.2×Rated Current (Continuous)
Dynamic Current Withstand 2.5kA (Peak)
Secondary Winding Resistance ≤0.4Ω
Short-Time Current Rating 40kA for 1s
Power Frequency Withstand Voltage 3kV (50Hz, 1min)
Rated Burden 2.5VA
Construction Window Type, Resin Cast
Operating Temperature -25°C to +55°C
Weight Approx. 1.2kg
question:If a malfunction occurs during use and the product is found to be refurbished, how will after-sales service handle it?
answer:We will provide a replacement or refund upon verification. Please submit proof of purchase and detailed issue description.
question:Can I self-schedule an official courier for pickup?
answer:Yes, self-scheduled pickups are allowed. Contact our support team to coordinate documentation and pickup details in advance.
question:Can I apply for low-value declaration for shipments?
answer:Low-value declarations are possible but must comply with destination customs regulations. Provide accurate invoices to avoid penalties.
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:If a malfunction occurs during use and the product is found to be refurbished, how will after-sales service handle it?
answer:We will provide a replacement or refund upon verification. Please submit proof of purchase and detailed issue description.
question:Can I self-schedule an official courier for pickup?
answer:Yes, self-scheduled pickups are allowed. Contact our support team to coordinate documentation and pickup details in advance.
question:Can I apply for low-value declaration for shipments?
answer:Low-value declarations are possible but must comply with destination customs regulations. Provide accurate invoices to avoid penalties.
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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