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Component products: Low-Voltage Circuit Breakers; Vacuum Circuit Breakers; AC Contactors; RMUs; C-GISs; Accessories; Other Power Distribution Products and Components

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Low-Voltage Circuit Breakers
Vacuum Circuit Breakers
AC Contactors
RMUs
C-GISs
Accessories
Other Power Distribution Products and Components

Low-Voltage Circuit Breakers

CJ-Global ACB Draw-out Chassis

This product is used forGE GLOBAL-ACB low-voltage circuit breaker.The development, trial production and finalization of this productare jointly conducted by Rocoi and GE.

CJ45-III Draw-out Chassis

CJ45II/C3+4 Assembled Draw-out Chassis

Thisproduct is used for domestic DW45 intelligent low-voltage air circuit breaker.

CJ45-II Draw-out Chassis

This draw-out chassis is suitable for domestic DW45 intelligent low-voltage air circuit breaker. The CJ45type IIdraw-out chassis is smoother, more versatile and more reliable thantypeI draw-out chassis during use.

ABB Emax2 Operating Mechanism

T7/X1 Operating Mechanism

J-LS Operating Mechanism

J45-III Operating Mechanism

J45-II Operating Mechanism

This mechanism is used for domestic DW45 intelligent low-voltage air circuit breaker.On the basis of the original mechanism J45, there are many improvements on this operatingmechanism, and a lot of fine blanking partsare used toachieve betterproduct performanceand higherstability. The surface treatment is phosphating.

J45 Operating Mechanism

This mechanism is used for domestic DW450 intelligent low-voltage air circuit breaker.

Vacuum Circuit Breakers

J-ZS32 Operating Mechanism

J-VSH-NH12 Operating Mechanism

J-VSH-35kV Operating Mechanism

J-VSH-II Operating Mechanism

J-ZT 35kV C-GIS Operating Mechanism

AC Contactors

CKG4-12/1250-D AC Contactor

CKG4-12/630-D AC Contactor

RMUs

RMU - Three-Position Isolation Mechanism

This product is a three-position isolation mechanismwithquick making function,and thesingle-springanddouble-operating shaft design is adopted to avoid misoperation.

RMU - Three-Position Isolation Switch

The three-position design is adopted for the isolation switch to avoid misoperation. The high-performance disc spring& can ensurestablecontact pressure and facilitate the design ofthe contact with making shape to ensure reliable grounding and making.

RMU - Arc Extinguishing Device

With thegrading and shielding technology, the primary circuit is installed in the thermoplastic insulating cylinder;vacuum arc extinguishingis combinedwiththe sinecurve mechanism to achievelong product life, strong arc extinguishing ability, and labor-saving closing andopening operation.

RMU - Circuit Breaker Mechanism

This product is a precision transmission mechanism with reclosing function, and the design scheme ofspline connection, needle bearing and high-performance oildamping is adopted toensure thatthe mechanical life of the product is more than 10,000 times. Theelectrical components are offront-mounting design, which can beretrofitted and maintained at any time.

RMU - Solid-Insulated RMU

J-XN-12KV Solid-Insulated RMU Mechanism

This product is used for 12KV solid-insulatedRMU, and contains circuit breaker mechanism, transmission mechanism andthree-position mechanism.

Core Component for Circuit Breaker Unit

Core Component for Load Switch Unit

RMU - Fuse Unit

Core Component for Combined Electric Unit

RMU - Circuit Breaker Mechanism

This product is a precision transmission mechanism with reclosing function, the V-key connection is adopted, andthe rolling bearing design scheme isextensively used for theaxis system support ofthetransmission system toachieve flexible rotation and high transmission efficiency, thusensuring thatthe mechanical life of the product is more than 10,000 times. Theelectrical components are offront-mounting design, which can beretrofitted and maintained at any time.

RMU - Downstream Grounding Switch

When the fuse is blown,downstreamgrounding caneffectively remove the residual charge from the transformer side to ensure thepersonal safety when replacing the fuse.

RMU - Combined Electrical Mechanism

This product is a combined electrical mechanism with quick-opening (releasing) function,thesingle-springanddouble-operating shaft design is adopted,and areliable closing,opening and grounding limit interlock deviceis built into ensure no obvious overshoot phenomenonduring closing andopening. The mechanical life of the product is more than 10,000 times, and theelectrical components are of front-mounting design, which can beretrofitted and maintained at any time.

RMU - Load Switch Mechanism

Thesingle-springanddouble-operating shaft design is adopted,and areliable closing,opening and grounding limit interlock deviceis built into ensure no obvious overshoot phenomenonduring closing andopening. The mechanical life of the product is more than 10,000 times, and theelectrical components are of front-mounting design, which can beretrofitted and maintained at any time.

RMU - Three-Position Load Switch

Thethree-position design is adopted forclosing,opening and grounding of the load switch toachieve safety and reliability. The load switch has better insulation andinterruption performance by means of rotating blade + arc chute forarc extinguishing.

RMU - Isolation Mechanism

RMU - Arc Extinguishing Device and Isolation Switch

The closing deviceis ofcam structure, over-travel and full-travel dimensionsareaccurate, and the production compatibility is high. SMC mold pressing is adopted for theinsulated side plate toachieve accurate dimensions and high insulation strength. Thethree-position design is adopted forclosing,opening and grounding of theisolation switch toachieve safety and reliability.

C-GISs

12kV-1250A Split-Type II C-GIS Circuit Breaker

12kV-1250A Split-Type I C-GIS Circuit Breaker

VLMD-12 Series C-GIS Circuit Breaker

C-GIS Direct-Acting Three-Position Mechanism

C-GIS Knife-Type Three-Position Mechanism

Accessories

TKQ-DW45 Series Release

This product is mainly applied to DW45 intelligent low-voltage circuit breaker.

DCT-VSH Series Electromagnet

This product is mainly applied to VSH series medium-voltage circuit breaker.

DCT-VS1 Series Electromagnet

This product is mainly applied to VS1 series medium-voltage circuit breaker.

DC-VSH Electric Operating Mechanism

This product is mainly applied to VSH series medium-voltage circuit breaker.

DC-VS1 Electric Operating Mechanism

This product is mainly applied to VS1 series medium-voltage circuit breaker.

DC-DW450-II Series Electric Operating Mechanism

This product is mainly applied to DW450 intelligent low-voltage circuit breaker,and has better quality through continuous improvement.

DC-DW45 Electric Operating Mechanism

This product is mainly applied to DW45 intelligent low-voltage circuit breaker,and is usedas an actuator for intelligent and remote control ofthecircuit breaker.

FK-LW39B Changeover Switch

This product is used for M-PACT and GLOBAL-ACB circuit breakers.

FK-DW45 Auxiliary Switch

This product is mainly applied to DW45 intelligent low-voltage circuit breaker.

Other Power Distribution Products and Components

Eaton Rocking Mechanism

Siemens Rocking Mechanism

Siemens 3wt Spindle

Other Power Distribution Products and Components

Pioneering in Chinese technologies and incorporating innovation into every electric component products

We incorporate intelligent technologies into the product design, and are committed to providing you with outstanding quality and reliability. By means of intelligent manufacturing, Rocoi products not only have excellent performance, but also have solid safety guarantee, providing reliable support for the stable operation of electric power systems.

900,000

Operating Mechanisms for Low-Voltage Circuit Breakers

300,000

Operating Mechanisms for Medium-Voltage Circuit Breakers

As of the end of 2022

Industry Application

Transportation

Data Center

Commercial Complex

New Energy

Transportation
Data Center
Commercial Complex
New Energy

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Product Center

Low-Voltage Circuit Breakers

Vacuum Circuit Breakers

AC Contactors

RMUs

C-GISs

Accessories

Other Power Distribution Products and Components

Pioneering in Chinese technologies and incorporating innovation into every electric component products

Industry Application

Transportation

Data Center

Commercial Complex

New Energy

Transportation

Data Center

Commercial Complex

New Energy