High quality 3.6kV 7.2kV 224A H.V.HRC current-limiting fuses type W for motor protection



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High quality 3.6kV 7.2kV 224A H.V.HRC current-limiting fuses type W for motor protection

High quality 3.6kV 7.2kV 224A H.V.HRC current-limiting fuses type W for motor protection

  • Item No.type W
    MOQ500 Pole
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If over 500pcs, mass production will start until pre-production sample has been approved.

Est. 7 days production

High quality 3.6kV 7.2kV 224A H.V.HRC current-limiting fuses type W for motor protection

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1.H.V current-limiting fuses type W is designed for protection of motors or other power equipments working under a voltage of 3.6kV, 7.2kV, 50Hz, and with a rated current up to 224A  from overloading or shortcircuit. It can also be used with load switch, vaccum contact.

2.It conforms to IEC282-1, IEC 644, BS and GB 15166.2


Product Description

Basic Data


Rated voltage (kV)DepartmentModels ForeignRated current of the fuse links (A)Rated breaking current (kA)Dimensions (mm)  Fig.8.1Weight (kg)
3.6XRNM1WDF.O50, 63, 80, 100, 12550512541.4
3.6XRNM1WFF.O125, 160, 20050762542.8
3.6XRNM1WKF.O250, 315, 355, 40050762542.8
7.2XRNM1WFN.O25, 31.5, 40, 50, 63, 80, 100, 125, 16040764034.15
7.2XRNM1WKN.O200, 22440764034.15
10XRNM1 25, 31.5, 40, 50, 63, 80, 100, 125, 160, 200, 22440766005.26




Selection of prodper H.V.fuse links according to the transformer capacity


Transformer capacity (kVA)

Transformer proimary voltage

        6.6(kV)               6.6(kV)                    10(kV)                      10(kV)

Fuse modelRate current (A)Fuse modelRate current (A)

Note: Under stipulated condition, min.breaking current of fuses could be as high as 2.5~3.0 tims than rated current.

7.2kV fuses link of 224A or above have a dual-tube body

3.6kV fuses link of 400A or above have a dual-tube body



Dimension of motor protection fuse type W for busbar installation (mm)












Selection for W type motor current-limit fuse box

  • When started with full voltage, Rated current ≈ twice of loaded motor current;When started under other circumstances, rated current ≈ 1.25 times of loaded motor current. For directly started motor, fuses of proper rated current should be selected according to the following formula;
  • Refer to Time-current Characteristics Diagram for Selection of proper H.V. fuse link, Rated current of fuse link should be 1.3 times than loaded motor current.





Related Products


Company Profile


Yueqing Sofielec Electrical Co., Ltd.


Yueqing Sofielec Electrical Co., Ltd.ltd is located liushi Wenzhou China. Liushi is famous for the low and high voltage electrical products such as circuit breaker,ac contactor,Timer,relay,switch gear,there is the largest low-voltage electrical appliance market in China and about 15Km far away from Wenzhou Airport and Railway, the transportation is very convenient.


Our Company is specialized in manufacturing modular electrical terminal devices for household,economic and industry area installation. We have wide range of products covers Miniature circuit breaker(MCB), Residual current circuit breaker(RCCB),Residual current circuit breaker with over-current protection(RCBO), Switch-disconnect, Distribution box, High and low voltage switch gear and the accessories in the various type of switch boards,such as SPD,copper terminals,ac contactor,ampmeter etc.


Our company takes the repuation as the large supplier of electro-magnetic type RCCB and RCBO,OEM or ODM projects are available.The most important is above products pass the lab.test and obtained the approvals:CE(Europe),S(SEMKO Sweden),CCC(China),CB,SAA





Shippment & Payment




1,When can I get the price?

We usually quote within 12 hours after we get your inquiry. if you are very urgent to get the price, please call us or tell us in your email so that we will regard your inquiry priority.


2,How can I get a sample to check your quality?

After price confirmation, you can require for samples to check our quality.

If you just need a blank sample to check the design , we will provide you sample , as long as you afford the express freight.


3,Can you do the design for us?

Yes. We have a professional team having rich experience in mcb/rccb design and manufacturing. Just tell us your ideas and we will help to carry out your ideas. It doesn't matter if you do not have someone to complete files. Send us high resolution images, your Logo and text and tell us how you would like to arrange them, We will send you finished files for confirmation.


4,How long can I expect to get the sample?

After you pay the sample charge and send us confirmed files, the samples will be ready for delivery in 7-15 days. The samples will be sent to you via express and arrive in 3-5 workdays. You can use your own express account or prepay us if you do not have an account.


5,What is your terms of delivery?

We accept EXW,FOB,CFR,CIF,etc. You can choose the one which is the most convinent or cost effective for you.

Contact Us


Business TypeTrading CompanyCountry / RegionZhejiang, China
Main Productscircuit breaker,rccb,rcbo,isolator switch,distribution boxTotal Employees51 - 100 People
Total Annual RevenueBelow US$1 MillionYear Established2016
CertificationsProduct CertificationsSAA,SAA,SAA
Main MarketsDomestic Market 30%
Southern Europe 20%
Northern Europe 20%
Yueqing Sofielec Electrical Co., Ltd. is professional manufacture for more than 15 years , making lines of circuit breaker, rccb, mcb, rcbo, isolator, electrical bell. isolator switch and other rated products such as distribution box, switch , ac contactor , surge protective cocket, bus bar and so on.

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