VTZ-12C vacuum circuit breaker with lateral operating mechanism is an indoor switch equipment with a rated voltage of 12kV and AC frequency of 50/60Hz. It utilizes our company's VTZ series modular operating mechanism, making it a derivative product of the series. Featuring a lateral operating mechanism layout, it is suitable for various industrial and mining enterprises, power grid equipment, primarily applicable to urban power supply ring main units.

Product Specifications

Specification Sheet

No.	Name	Unit	Data
1	Rated Voltage	kV	12
2	Rated Frequency	Hz	50/60
3	Rated Current	A	630/1250/1600
4	Rated Power Frequency Withstand Voltage	kV	48(Across the Contact Gaps) / 42(To Ground)
5	Rated Lighting Impulse Withstand Voltage	kV	75
6	Rated Short-Circuit Breaking Current	kA	25/31.5
7	Rated Short-Circuit Making Current (Peak)	kA	63/80
8	Rated Withstand Current (Peak)	kA	63/80
9	Rated Duration of Short-Circuit	s	4
10	Operating Cycles at Rated Short-Circuit Breaking Current	Cycles	E2
11	Mechanical Endurance	Times	10000
12	Standard Operating Sequence	-	O-0.3s-CO-180s-CO O-180s-CO-180s-CO
13	Allowable Wear Thickness of Contact	mm	≤3

Mechanical characteristics

No.	Name	Unit	Data
1	Clearance between Moved and Fixed Contact	mm	9±1
2	Contact Overtravel	mm	3.5±0.5
3	Average Closing Speed	m/s	0.7±0.2
4	Average Opening Speed (Average Speed of First Opening at 6mm)	m/s	1.1±0.2
5	Rated Contact Pressure	N	2500±200N(25kA) 3100±200N(31.5kA)
6	Closing Time	ms	30～70
7	Opening Time	ms	20～50
8	Contact Bouncing Duration at Closing Operation	ms	≤3
9	No-Simultaneity of Closing/Opening Operations of 3-Phase	ms	≤2

Product Advantages

VTZ-12C vacuum circuit breaker with lateral operating mechanism has many advantages:

Breaker performance

E2-C2-M2

Convenient maintenance

The modular mechanism design allows for easy replacement of the closing and opening coils without the need for disassembling other components. This eliminates the need for testing or adjustment after replacement, ensuring users can replace them independently, making subsequent maintenance more convenient.

Excellent insulation performance

The main conductive circuit adopts APG high-strength epoxy resin composite insulated cylinder, which exceeds the IEC standard in terms of insulation performance.

High adaptability

The three phases of the circuit breaker are arranged from inside to outside, with the minimum cabinet depth of 900mm, making it suitable for various environments. The circuit breaker can be equipped with a mechanical interlock for easy interlocking with the isolating switch and grounding switch of cabinet, ensuring high safety.

Product Applications

VTZ-12C vacuum circuit breaker with lateral operating mechanism has many applications:

Urban community distribution systems

Mobile substation equipment

Industrial and mining enterprises

Product Outline Drawing

VTZ-12C Vacuum Circuit Breaker with Lateral Operating Mechanism manufacturer

Note: There are multiple options for the VTZ-12C with lateral operating mechanism circuit breaker. The primary conductive circuit main wiring can be on the left or right side. The VTZ-12C with lateral operating mechanism circuit breaker can also extend the main shaft to the left or right side, installing the corresponding parts for cabinet interlocking. In addition, the VTZ-12C with lateral operating mechanism circuit breaker can extend the opening mechanical operation lever to the left or right at the top, facilitating the connection to the cabinet to meet the respective operational safety requirements for users.