JCZ5-7.2/12 Series High Voltage Vacuum Contactor | Efficient 12kV Power Switching | Chennuo Electric-Chennuo Electric Technology Group Co., Ltd

JCZ5-7.2/12 High Voltage Vacuum Contactor Product Appearance

JCZ5 12kV Three-phase High Voltage Vacuum Contactor

The JCZ5 High Voltage Vacuum Contactor is designed with an integrated insulated frame and high-quality vacuum interrupters, ensuring excellent electrical performance and long-term reliability. Its optimized structural design provides stable operation, simple secondary control, and a fully insulated external cover, enhancing both safety and appearance. To improve operational efficiency, our company has upgraded the transmission mechanism of the JCZ5 vacuum contactor, resulting in a compact structure, high synchronization accuracy, and minimal contact bounce. The product line includes three operating types—electromagnetic holding, mechanical holding, and permanent magnet holding—allowing users to select the ideal mechanism based on different application requirements. Among them, the mechanical holding vacuum contactor is our patented design. It delivers stable and wear-free operation, long service life, low switching current, and zero power consumption during holding, making it an energy-efficient and cost-effective solution for high-voltage control systems. The JCZ5 series is widely applied in high-voltage power distribution, motor control, and capacitor switching, providing users with a reliable and efficient high-voltage vacuum contactor solution.

Request For Quote Related Products

Parameter

Tech. parameters	Model	160/12(7.2)	250/12(7.2)	400/12(7.2)	630/12(7.2)	800/12(7.2)
Rated voltage of the main circuit	(KV)	12(7.2)	12(7.2)	12(7.2)	12(7.2)	12(7.2)
Rated current of the main circuit	(A)	160	250	400	630	800
Main circuit making capacity	(A/100times)	1600	2500	4000	6300	8000
Main circuit switching capability	(A/25times)	1280	2000	3200	5000	6000
Ultimate breaking capacity	(A/3times)	3200	4000	4500	6300	8000
Mechanical life	(10,000 times)	100	100	100	100	100
Electrical endurance AC3	(10,000 times)	25	25	25	25	25
Power frequency withstand voltage of main circuit (fracture)	(KV)	42(32)	42(32)	42(32)	42(32)	42(32)
Phase-phase/phase-to-ground power frequency withstand voltage	(KV)	42(32)	42(32)	42(32)	42(32)	42(32)
Withstand lightning impulse voltage	(KV)	75(60)	75(60)	75(60)	75(60)	75(60)
Power frequency withstand voltage of control circuit	(KV)	2	2	2	2	2
Rated operating frequency	( Times/h)	150	150	150	150	150
Terminal voltage	(N)	>100	>100	>100	>100	>100
Clearance between open contacts	(mm)	6(5)±0.5	6(5)±0.5	6(5)±0.5	6(5)±0.5	6(5)±0.5
Overtravel	(mm)	1.5±0.5	1.5±0.5	1.5±0.5	1.5±0.5	1.5±0.5
Main loop resistance	(μΩ)	≤200	≤200	≤200	≤200	≤200
Total weight	(Kg)	30(25.5)	30(25.5)	30(25.5)	30(25.5)	30(25.5)

Typical Application Scenarios：

High-Voltage Motor Control: Frequent starting, stopping, and reversing of large industrial AC motors, pumps, fans, and compressors.
Power Distribution & Transformation: Primary and secondary switching in industrial substations and transformer load control.
Capacitor Banks & Reactive Power Compensation: Reliable, surge-free switching of high-voltage capacitor banks to manage power factor correction.
Metallurgy, Mining & Cement Plants: Heavy-duty industrial applications operating in demanding environments characterized by frequent cycles and heavy electrical loads.

Why Choose Chennuo Electric?

Specialized Engineering Expertise: Backed by years of dedicated manufacturing experience in high and low-voltage power distribution equipment.
Strict International Compliance: Every contactor undergoes stringent factory testing—including power-frequency withstand voltage, lightning impulse tests, and contact resistance checks—meeting global IEC standards.
Flexible Customization: We support tailored control power supplies (AC/DC 110V, 220V, 380V, etc.) and customized terminal configurations to precisely match your switchgear design.
Reliable Export Standards: Secure, shock-absorbing export packaging paired with responsive technical support to ensure smooth international project execution.

Frequently Asked Questions (FAQ)

Q1: What voltage and current configurations are standard for the JCZ5 series?
A: The JCZ5 series is engineered for 12kV (and below) systems, with standard operational currents typically ranging from 160A up to 800A. Please check our detailed specification table or contact our engineering team for precise parameter matching.

Q2: Can the JCZ5 contactor be paired with high-voltage current-limiting fuses?
A: Yes. The JCZ5 series is frequently utilized in F-C (Fuse-Contactor) combination units, where the contactor handles normal frequent switching and the high-voltage fuses provide short-circuit fault protection.

Q3: What control coil voltages are available for order?
A: We provide flexible options for control power supplies, including standard AC and DC configurations (e.g., 110V, 220V, 380V). Custom control voltage specifications can also be fulfilled upon request to match your secondary schematic layout.