Lmk(BH) 0.66 Current Transformer

The LMK(BH) 0.66 Current Transformer is a high-performance measuring device designed for indoor AC power distribution systems, widely applied in current measurement, energy metering, and relay protection within power cabinets, distribution boxes, and industrial electrical equipment; it features a high-quality silicon steel core and high-purity copper windings to ensure stable magnetic performance and low energy loss, while its flame-retardant ABS housing provides strong insulation and anti-interference capability, enabling safe and stable long-term operation under rated conditions as a key component for accurate power monitoring.

Company Introduction

We are committed to providing comprehensive services for industrial automation control, delivering precise, reliable, energy-saving and environmentally friendly intelligent power distribution products to meet all aspects of power system needs; with strict quality control from R&D through production, we ensure every product complies with international standards and aim to be a trusted global partner in the electrical measurement equipment industry.

New Quality Upgrade & More Durable

Our LMK(BH) 0.66 Current Transformer has undergone a full quality upgrade. Strict selection of high‑grade silicon steel sheet iron core and high‑purity oxygen‑free copper ensures stable magnetic conductivity and low heat generation. The flame‑retardant ABS shell is sturdy, corrosion‑resistant and aging‑resistant. Each product passes professional aging test, withstand voltage test and accuracy calibration before delivery. It can work continuously for a long time in harsh industrial environments, with higher safety and longer service life.

Structural Analysis

The LMK(BH) 0.66 Current Transformer adopts a compact and reasonable structure, composed of four core components:

1. Flame‑retardant ABS Shell: High‑strength insulation shell, safe and anti‑aging.

2. High‑quality Iron Core: High‑permeability silicon steel sheet, stable and low loss.

3. Pure Copper Coil: Uniform winding, low resistance, high conductivity and not easy to burn.

4. Terminal Block & Lead Seal Hole: Standard wiring terminals, with lead seal design to prevent disassembly and electricity theft.

Highquality Coils & Precise Measurement

Our current transformer uses high‑purity pure copper coil and high‑permeability silicon steel sheet iron core. It features professional winding technology, uniform turns, stable inductance and low power loss. With 0.5‑level high accuracy, it can accurately sense and convert primary current into standard secondary current for measurement and metering. Strong anti‑interference ability ensures stable output even in complex electromagnetic environments, meeting industrial‑grade measurement requirements.

Our Products vs. Other Products

Core Advantage

5. High Accuracy: Adopts professional design and precise manufacturing, with 0.5‑level measurement accuracy to ensure accurate metering.

6. Safe & Reliable: Flame‑retardant shell, high insulation performance, effectively preventing fire and electric leakage risks.

7. Stable Performance: High‑quality iron core and pure copper coil, low heat generation, suitable for 24‑hour continuous operation.

8. Easy Installation: Standard mounting holes, reasonable wiring design, convenient for installation and maintenance.

Four Core Selling Points

• Flame‑retardant ABS Shell: High‑strength, insulation, flame‑retardant, anti‑corrosion and shock‑resistant.

• Pure Copper Coil: High conductivity, low resistance, low heat, not easy to burn, long service life.

• High‑precision Iron Core: High magnetic permeability, low loss, stable and accurate current conversion.

• Lead Seal Anti‑theft Design: Reserved lead seal holes to prevent unauthorized disassembly and electricity theft.

The Shell is Sturdy and Shockresistant

The shell of LMK(BH) 0.66 Current Transformer is made of high‑strength engineering plastic with fine surface treatment, smooth and burr‑free. It has excellent shock resistance, compression resistance and mechanical stability, which can resist daily collision and vibration in industrial sites without deformation or damage. The material is also anti‑corrosion and anti‑aging, ensuring long‑term stable use in complex working environments.

Flame Retardant ABS Material

Image: 详情页图12 – Flame retardant ABS material

Adopting high‑performance flame‑retardant ABS engineering plastic, the shell has excellent flame‑retardant and insulation properties. It can effectively inhibit combustion and prevent fire spread caused by short circuit, overload or overheating. This design greatly improves the safety of the power distribution system, reduces potential safety hazards, and is suitable for various industrial and civil power distribution environments.

Highquality Terminal Block

The current transformer is equipped with high‑standard copper wiring terminals, featuring good conductivity, firm crimping and not easy to loose. The terminals are clearly marked for correct and convenient wiring. With professional structural design, the connection is stable and reliable, resisting long‑term vibration and ensuring safe and stable power transmission.

Product Dimensions

Complete Specifications

LMK(BH) 0.66 series current transformers have complete models and specifications, including 30I, 40I, 50I, 60I, 80I and other sizes. A variety of current ratios are available to meet the needs of different current measurement and metering. Suitable for low‑voltage power distribution cabinets, switch cabinets, energy metering boxes and industrial power equipment.

Product Parameters

Wiring Diagram

1. Pass the primary cable (busbar) through the center hole of the transformer.

2. Connect the secondary winding terminals to the ammeter, energy meter or protection device.

3. Do not open the secondary circuit when the primary circuit is energized to avoid high voltage danger.

Standard wiring and clear marking make installation simple, safe and efficient.

Authoritative Certification

The LMK(BH) 0.66 Current Transformer has passed professional testing and certification, in line with national and industry standards. Each product undergoes strict quality inspection from raw materials to finished products, ensuring accuracy, safety and reliability. Authoritative certification provides a strong guarantee for bulk procurement, engineering applications and long‑term cooperation.

Widely Used

LMK(BH) 0.66 Current Transformer is widely used in:

• Low‑voltage power distribution cabinets and switch cabinets

• Electric energy metering boxes and metering cabinets

• Industrial power equipment and automation systems

• Power plants, substations and power monitoring projects

• Commercial buildings, factories and residential power distribution systems

FAQ 

1. What is the main use of this product?

It is mainly used for AC current measurement, electric energy metering and relay protection in 0.66kV and below power systems.

2. What accuracy level does it reach?

It adopts 0.5‑level high accuracy, which meets the requirements of industrial measurement and legal metering.

3. What models are available?

We provide 30I, 40I, 50I, 60I, 80I and other complete models.

4. Does it have anti‑theft function?

Yes, reserved lead seal holes can prevent unauthorized disassembly and electricity theft.

5. Is it suitable for outdoor use?

It is designed for indoor use, in dry, ventilated and non‑corrosive gas environments.

6. What is the service life?

With high‑quality materials and strict craftsmanship, it can be used continuously for a long time under normal working conditions.