ECONOMY – SAFETY – EFFICIENCY

iLEC MR – Wound-Type Current Transformer
Wound-Type Current Transformer

MR SERIES

Introduction

The MR series current transformer brings an updated design to electrical systems, catering to diverse applications such as current measurement, monitoring, and protection for electrical wiring and equipment. This indispensable device serves a crucial purpose in transforming high AC currents into smaller, more manageable values. With their primary winding, secondary winding, magnetic core, and insulated body, MR current transformers provide a comprehensive solution for accurate and efficient current management.

One notable advantage of the MR series current transformer lies in its versatility. Designed to adapt to various electrical setups, it offers the flexibility of connecting with both cables and bus bars. This adaptability ensures seamless integration within different power distribution systems.

These features make the MR series highly efficient across various industrial installations. They play a vital role in maintaining safety, preventing overloads, and ensuring the overall stability of the power network.

Specially designed for the ILEC brand (Vietnam), MR iLEC wound-type current transformers are premium low-voltage measurement devices. They are engineered to safely convert high primary currents into a standard secondary current of 5A (or 1A) for metering and protection equipment.

Applications

  • Current measurement, monitoring and piotection for electrical wiring and equipment.
  • Current and power measurement for electric motors, lighting, air compressor, heating and ventilation system,air-condition equipment and automation-control system.
  • Current, power and energy monitoring device.
  • Relay protection device.

Features of iLEC MR Wound-Type CT

  • Premium Low-Voltage Solution: Specifically engineered for the iLEC brand (Vietnam) as an accurate low-voltage electrical measurement device.
  • Efficient Current Conversion: Safely transforms high primary AC currents into a standard, manageable secondary current of 5A or 1A.
  • Wound-Type Technology: Feature a robust design with a high-quality primary winding, secondary winding, magnetic core, and an insulated body.
  • Flexible Connection: Offers high versatility with the ability to connect seamlessly with both cables and bus bars.
  • Multi-Purpose Applications: Highly efficient for current measurement, continuous monitoring, and overload/safety protection in electrical systems.
  • System Stability: Plays a vital role in maintaining the safety, preventing overloads, and ensuring the overall stability of industrial and commercial power networks.

Ordering Code

iLEC Epoxy CT ordering code

General Specifications

Parameter Value
System voltage Max. 720V
Test voltage 3kV for 1 minute
System frequency 50/60Hz
Overload withstand 1.2 x rated current continuously
Short circuit thermal: 60 x rated primary current
for 1 second current (Ith)
50/60Hz
Dynamic current (Idyn): 2.55 x Ith
Serivce temperature: -20º ~ 70ºC
Secondary current: 5A or 1A

MR Series Selection Guide

Model Product Code Ratio Accuracy Class Rated Burden Inside Diameter
(Unit: mm)
MR-28 MR-28-0050 50/5A CL.3 3VA Ø28
MR-28-0075 75/5A CL.3 3VA Ø28
MR-35 MR-35-0100 100/5A CL.1 5VA Ø35
MR-35-0150 150/5A CL.1 5VA Ø35
MR-35-0200 200/5A CL.1 5VA Ø35
MR-35-0250 250/5A CL.1 5VA Ø35
MR-35-0300 300/5A CL.1 5VA Ø35
MR-45 MR-45-0400 400/5A CL.1 10VA Ø45
MR-45-0500 500/5A (*) CL.1 10VA Ø45
MR-65 MR-65-0500 500/5A CL.1 5VA Ø65
MR-65-0600 600/5A CL.1 5VA Ø65
MR-90 MR-90-0800 800/5A CL.1 15VA Ø90
MR-90-1000 1000/5A CL.1 15VA Ø90
MR-90-1200 1200/5A CL.1 15VA Ø90
MR-110 MR-110-1600 1600/5A CL.1 20VA Ø110
MR-110-2000 2000/5A CL.1 20VA Ø110
MR-130 MR-130-2500 1600/5A CL.1 20VA Ø130
MR-130-3000 3000/5A CL.1 20VA Ø130
MR-130-4000 4000/5A CL.1 20VA Ø130
MR-200 MR-200-5000 5000/5A CL.1 20VA Ø200
MR-200-6000 6000/5A CL.1 20VA Ø200
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