A. 25 years experience of production Medium voltage circuit breaker material
B. 18 years for overseas market; you no worry for communication and save time
C. IEC CNAS standard testing lab inside own property factory industrial zone
D. Big Brand trusted material supplier, you no worry for quality control
E. Quality control 3 times 100% inspection testing from raw material, to operating mechanism, to finished Vacuum Circuit Breaker.

1 of the best Medium Voltage material for power transmission and distribution private company in China

JLIAMIGO was joint venture and stand for JULI and SINOAMIGO;

Zhejiang JULI Electric Co., Ltd., start since 2000 focus on Operating mechanism, Vacuum Circuit Breaker and its recloser. So far employees more than 300, annually turn over 30 million USD, and local Medium Voltage Vacuum Circuit Breaker manufacturers 50% material by JULI in Wenzhou China;

With Big Brand, the same core material spring motor drive (operating mechanism), for your medium voltage circuit breaker and GIS switchgear;

SINOAMIGO Power T&D Co., Ltd. was initial founded in 2010, professional manufacturer for medium voltage switchgear panel, switchboard with JULI VCB etc brand Vacuum Circuit Breaker mounted.

In order to better dealing overseas EPC projects, by joint venture company: JLIAMIGO Electric Power (Yueqing) Co., Ltd.

Quality control: 3 times 100% inspection testing
(from raw material, to operating mechanism, to finished Vacuum Circuit Breaker)

1. Raw Material Inspection of Vacuum Circuit Breaker (VCB)


2. Production Line of Vacuum Circuit Breaker (VCB)

3. Production Line and Testing of Operating Mechanism (VCB key parts)

4. Test equipment as IEC standard for Vacuum Circuit Breaker (VCB)

Power frequency testing: 100% according to IEC standards;
Big current testing temperature rising equipment: provide up to 3000A;
Partial discharge testing room: provides two different size for vacuum circuit breaker and GIS switchgear panel;
Lightning withstand voltage testing equipment: were same as the CNAS authoritative third-party testing laboratory, which can provide a maximum of 300kV type test lightning voltage;


5. Warehouse for Vacuum Circuit Breaker (VCB) and its Operating Mechanism
Following 6S Management, always keep neat and clearn.


6. Exhibition and After-sales Service


7. Our Team

7. Certification and Test Report

ZN85-40.5 Indoor Vacuum Circuit Breaker

ZN85-40.5(3AV3) indoor vacuum circuit breaker is rated voltage 40.5kV, three phase and AC 50Hz/60Hz. It applies to mining firms, power plant and substation, acting as protection and control electric apparatus. It is also applicable in occasions with frequent operation.