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HEYI Electrical CO.,LTD

Contact person: Bethy

Position: Sales Manager

Tel: 86-577-62659558

Fax: 86-577-61712987

Mobile: 86-13968747975


Skype: bethycai

ADD: #21 ShangYou North 

Road, HuangHua LiuShi YueQing,

Zhe Jiang, CHINA


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 MBO Series current transformer

MBO Series (9 frames) perfect designed plastic case current transformer, advanced snap on body, high accuracy (up to Class 0.2S),

humanization transparent cover and lead seal hole design makes the CT very easy to indentify after long term use and perfect 

anti-stealing electricity.


1:Safe, easy to install, portable
2:Wide inner window, allowing clamping of big cables or bus-bars
3:Wide range of sizes to accommodate all the existing installations


1:Current measurement, monitoring and protection for electrical wiring and equipment.

2:Current and power measurement for electric motors, lighting, air compressor, heating and ventilation system, air-condition equipment and automation - control system.

3:Current, power and energy monitoring device.

4:Relay protection device.

Technical Index:

Electrical Parameter
Mechanical Parameter
Frequency 50/60Hz Case PC/UL94-V0
Rated Input 5A-3000A Bobbin PBT
Measuring range 5%In-120%In Core Silicon steel
Rated Output 1A,5A Construction Screw
Ratio Voltage 0.72KV (AC) Operating Temp -25℃~+75℃
Dielectric strength 3.0KV/1mA/1min Operating Humidity ≤85%
Insulation Resistance DC500V/100MΩ min Output Connection Terminal
Technical Parameter

Model Primary / Secondary Busbar Hole Dimensions(mm) Rated Burden (VA) Accuracy Class Rated Voltage
MBO-62/B 5/5A~200/5A busbar 2.5~5 0.5 / 1.0 0.72KV(AC)
MBO-62/20 30/5A~200/5A φ=20mm
1.5~3.75 0.5 / 1.0
MBO-62/30 30/5A~300/5A φ=30mm
1.5~5 0.5 / 1.0
MBO-62/40 60/5A~400/5A φ=40mm
1.5~5 0.5 / 1.0
MBO-30 50/5A~400/5A φ=30mm
1.5~5 0.5 / 1.0
MBO-40 100/5A~600/5A
5~7.5 0.5 / 1.0 0.72KV(AC)
MBO-60 300/5A~1500/5A φ=60mm
5~15 0.5 / 1.0 0.72KV(AC)
400/5A~16000/5A φ=70mm
5~15 0.5 / 1.0 0.72KV(AC)
MBO-100 750/5A~3000/5A φ=100mm
10~20 0.5 / 1.0
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