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Home Product YDBH0.66-30I-A-400/5A Current Transformer 0.66kV 400/5A for Energy Metering & Protection Systems
Current transformer YDBH0.66-30I-A-400/5A closed transformer

YDBH0.66-30I-A-400/5A Current Transformer 0.66kV 400/5A for Energy Metering & Protection Systems

YDBH0.66 Current Transformer
30I-A Current Transformer
400/5A Current Transformer
YDBH0.66-30I-A-400/5A
YDBH0.66 Current Transformer, 30I-A model with 400/5A current ratio, high accuracy, compact design, durable construction for electrical measurement and protection systems.
Categories:Test & Measurement
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Product Description

The YDBH0.66 Current Transformer is a compact and high-precision device designed for electrical measurement applications. This 30I-A Current Transformer features a 400/5A ratio, supporting single-phase input and output configurations. It directly interfaces with energy meters, PLCs, or monitoring modules, equipped with an RS-485 communication port for Modbus protocol compatibility. Operating within 85-300V AC, it functions reliably across industrial temperature ranges (-25°C to +70°C). Ideal for power distribution systems, industrial automation, and energy management, its robust construction ensures stability in harsh environments. While lacking built-in batteries or a display, it offers ±0.5% accuracy but requires external power for communication. The transformer's clip-on design simplifies installation without interrupting circuits, though its fixed 400/5A ratio limits ratio adjustability. Core parameters include 50/60Hz frequency tolerance and 30A maximum primary current capacity.
Parameter Specification
Model YDBH0.66-30I-A-400/5A
Standard IEC 61869-1
Rated Voltage 0.66 kV
Frequency 50/60 Hz
Accuracy Class 0.5, 1.0
Rated Primary Current 400 A
Rated Secondary Current 5 A
Transformation Ratio 400:5
Rated Burden 30 VA
Insulation Class Class B
Operating Temperature -25°C to +55°C
Storage Temperature -40°C to +70°C
Weight Approx. 4.5 kg
Mounting Busbar or Cable
question:Do you offer technical selection services?
answer:Yes, we provide technical selection guidance to ensure optimal product compatibility.
question:Why can other suppliers source discontinued models you cannot?
answer:Suppliers may use remaining stock or non-original parts; we prioritize genuine, current inventory.
question:How is a refurbished product handled if faulty post-purchase?
answer:We offer immediate replacement or refund upon verification, ensuring full customer support.
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:Do you offer technical selection services?
answer:Yes, we provide technical selection guidance to ensure optimal product compatibility.
question:Why can other suppliers source discontinued models you cannot?
answer:Suppliers may use remaining stock or non-original parts; we prioritize genuine, current inventory.
question:How is a refurbished product handled if faulty post-purchase?
answer:We offer immediate replacement or refund upon verification, ensuring full customer support.
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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