Retrofit of indoor vacuum contactor combination electrical appliances is adopts our company's VTZ-12 indoor high-voltage vacuum circuit breaker basic model, with design changes and modular operating mechanism, which perfectly matches the VCM corresponding vacuum contactor combination electrical appliances and is suitable for various switch cabinet product upgrade and renovation projects.this case is used for the replacement and renovation of Mingji Electric's VCM contactor combination electrical appliances.

We offer alternatives to ABB, Schneider, and Siemens vacuum circuit breakers. These alternatives deliver the same performance and offer excellent value for money.

Commitment to Excellence
At Shaanxi West Power Tongzhong Electrical Co., Ltd., our commitment to excellence is evident in every aspect of our business. From our R&D initiatives to our manufacturing processes, we strive to deliver the highest quality products and services. By continuously improving our management practices, integrating top talent, and leveraging exceptional social resources, we are building a robust industrial chain that encompasses the research. production, and supply of high-quality electrical products.

Product Specifications

Specification Sheet

No.	Name	Unit	Data
1	Rated Voltage	kV	12
2	Rated Frequency	Hz	50/60
3	Rated current	A	630
4	Rated power-frequency withstand voltage	kV	48(Across the contact gaps ) /42(To ground)
5	Rated lightning impulse withstand voltage	kV	75
6	Rated short-circuit breaking current	kA	31.5
7	Rated-short-circuit making current (peak)	kA	80
8	Rated withstand current (peak)	kA	80
9	Rated duration of short circuit	s	4
10	Operating cycles at rated short-circuit breaking current	Times	E2
11	Mechanical endurance	Times	10000
12	Standard Operating sequence	-	O-0.3s-CO-180s-CO
13	All0wable wearing thickness of contacts	mm	≤3

Mechanical Characteristics

No.	Name	Unit	Data
1	Clearance between open contacts	mm	9±1
2	Over-travel	mm	3.5±0.5
3	Average closing speed	m/s	0.7±0.2
4	Average opening speed(average speed at 6mm of initial opening)	m/s	1.1±0.2
5	Rated added external contact final force	N	3100±200N(31.5kA)
6	Make time	ms	30～70
7	Breaking time	ms	20～50
8	Contact bouncing duration at closing operation	ms	≤2
9	Closing/opening no-simultaneity of 3-phase contacts	ms	≤2

Product Advantages

Retrofit of indoor vacuum contactor combination electrical appliances has many advantages:

Circuit Breaker Performance

E2-C2-M2
Simple and convenient maintenance

With modular structure, the replacement of closing and opening coils does not require the removal of other components. Users can easily replace them, and no testing and adjustment are required after replacement, making later operation and maintenance more convenient.
High Conductivity

Reasonable design of conductive circuit to meet 1.1 times the rated current temperature rise level;
Perfect replacement

This transformation plan can perfectly replace VCM combination electrical appliances, which is easy to maintain and replace, and provides customers with fast and convenient power grid upgrade services.

Product Applications

Retrofit of indoor vacuum contactor combination electrical appliances has many applications:

Power plants

Industrial fields

Power grid systems

Power infrastructures

Product Outline Drawing

china Retrofit of indoor vacuum contactor combination electrical appliances

Secondary Wiring Diagram

Retrofit of indoor vacuum contactor combination electrical appliances for sale

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Products

Retrofit Of Indoor Vacuum Contactor Combination Electrical Appliances

Product Specifications

Product Advantages

Product Applications

Product Outline Drawing

Secondary Wiring Diagram