7.2kv 160A JCZ5-12 Magnetic Contactor

JCZ5-12kV 160A 250A 400A 630A AC Three Pole High Voltage Vacuum ContactorThe JCZ5-7.2kV and JCZ5-12kV series indoor AC high voltage vacuum contactors are available in two designs: mechanical holding and electromagnetic holding. These contactors are designed for three-phase AC 50Hz power systems, with rated voltage of 7.2kV or 12kV and rated current up to 630A.They are widely used for long-distance making and breaking of circuits, as well as for controlling high voltage motors, transformers, capacitor banks, and other electrical loads. The JCZ5 series is particularly suitable for...

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JCZ5-12kV 160A 250A 400A 630A AC Three Pole High Voltage Vacuum Contactor

The JCZ5-7.2kV and JCZ5-12kV series indoor AC High Voltage Vacuum Contactors are available in two designs: mechanical holding and electromagnetic holding. These contactors are designed for three-phase AC 50Hz Power Systems, with rated voltage of 7.2kV or 12kV and rated current up to 630A.

They are widely used for long-distance making and breaking of circuits, as well as for controlling high voltage motors, transformers, capacitor banks, and other electrical loads. The JCZ5 series is particularly suitable for frequent operation, offering reliable performance, compact design, and lightweight construction.

The modular structure adopts an internationally popular up-and-down assembly layout, making it convenient for installation, operation, and maintenance. With its high reliability, long service life, and excellent switching capability, the JCZ5 series is an ideal solution for modern medium and high voltage power distribution systems.

Item	Data
Rated voltage (Un)	kV
Rated current	630 / 6300 / 5040 / 6300 / 6300
Rated closed current (r.m.s.)	630, 400, 250
Max breaking current	4000, 3200, 4000, 4000, 4000, 300
4s thermal stability of current	250000
Power frequency withstand voltage	300000
Lightning impulse withstand voltage	250000
Operating frequency	AC 110 / 220
Coil absorption current	≤ DC 63
Keep coil current	DC 0.32 / 0.16
Shunt trip coil current	DC 25 / 13
Contact form	—
Contact distance	5.5 – 7 mm
Overtravel	15 ± 0.5 mm
Closing synchronicity	≤ 0.25 ms
Average closing speed	0.3 – 0.6 m/s
Average breaking speed	—
Three-phase break synchronicity	≤ 0.5 ms
Closing time / breaking time	—
Resistance (20°C)	—
Mechanical life (MC-3)	250,000
Electrical life (MC-4)	200,000

7.2kV 160A JCZ5-12 Magnetic Contactor – Precision Vacuum Switching for Demanding Environments

The 7.2kV 160A JCZ5-12 Magnetic Contactor is a high-performance, three-pole vacuum contactor engineered for reliable control in medium-voltage AC systems (50Hz) up to 12kV. Featuring electromagnetic holding technology, this compact and lightweight unit delivers rapid response, exceptional arc-quenching capability, and consistent performance—even under frequent switching cycles. Ideal for motor control, transformer switching, and capacitor bank management, it ensures operational safety and system stability across industrial and utility applications.

7.2kV 160A JCZ5-12 Magnetic Vacuum Contactor

Designed with a modular up-and-down assembly layout, the JCZ5-12 enables Easy installation and maintenance in switchgear cabinets. Its advanced contact mechanism achieves ultra-high synchronization—**closing within ≤0.25 ms** and **three-phase break synchronicity under 0.5 ms**—minimizing transient stresses on connected equipment. With an overtravel of **15 ± 0.5 mm** and a contact gap of **5.5–7 mm**, the contactor maintains optimal arc interruption while supporting a mechanical life of **250,000 operations** and electrical endurance of **200,000 cycles (MC-4)**.

Electromagnetic holding vacuum contactor – ensures stable closure without mechanical latching, ideal for remote or automated systems
Frequent-duty medium-voltage switch – rated for high-cycle applications with low coil consumption and fast response
Compact indoor HV controller – space-efficient design fits modern switchgear panels while meeting IEC standards for dielectric strength

Backed by robust insulation performance—including high power frequency and lightning impulse withstand capabilities—the JCZ5-12 series offers dependable protection against voltage surges and thermal stress. Whether deployed in mining, water treatment, or renewable energy substations, this magnetic vacuum contactor combines efficiency, durability, and precision to meet the evolving demands of today’s high-voltage infrastructure.