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HEYI Electrical CO.,LTD

Contact person: Bethy

Position: Managing Director

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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 JY series current transformer

JY series current transformer is compact.smaller than other models with the current ratio of the transformer is small,clamshell-style terminal cover is well protected by the second terminal.With related accessories you can use Din rail mounting,a current from 5A to 5000A.


Safe,easy to install,portable

Wide inner window,allowing clamping of big cables or bus –bars

Wide range of sizes to accommodate all the existing installation


Current measurement,monitoring and protection 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.

Circuit connection diagram 

Technique Index

Electrical Paramenter Mechanical Parameter
Frequency 50-60Hz Case PA/UL94-V0
Rated Input 5A-5000A Bobbin PBT
Measuring range 5%In-130%In Core Silicon steel
Rated Output 0-5A Internal structure _--
Ratio ≤±0.5% Construction Screw
Phase angle ≤±30min Operating Temp _-25°C~+75°C
Dielectric strength 2.5KV/1mA/1min Operating Humidity ≤85%
Insulation Resistamce DC500V/100MΩmin Output Connection Terminal

Type Selection(Output: 1A/5A)

Mfg P/N Rated Input(A) Output(A) Accuracy Dimensions(mm)
JY-30 30-400A 1A/5A 0.5 ,1.0 79.0 87.0 42.0 30.0 22.0 66.0
JY-40 100-800A 1A/5A 0.5 ,1.0 79.0 87.0 42.0 41.0 30.0 66.0
JY-60 250-1500A 1A/5A 0.5 ,1.0 103.0 113.0 42.0 60.0 47.0 66.0
JY-100 500-3000A 1A/5A 0.5 ,1.0 151.0 166.0 45.0 101.0 71.0 70.0
JY-125 800-5000A 1A/5A 0.5 ,1.0 192.0 212.0 45.0 126.0 126.0 70.0

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