High Voltage Vacuum Contactor (JCZ9-40.5kV) | Reliable Power Control | Chennuo Electric-Chennuo Electric Technology Group Co., Ltd

JCZ9-40.5KV series high voltage vacuum contactor

High Voltage Vacuum Contactor (JCZ9-40.5kV)

The 30kV(40.5kV) high-voltage vacuum contactor series is a new product developed by our company in response to market demand. It features high-quality vacuum interrupters and employs a contemporary assembly design with a compact and lightweight structure, ensuring ease of use and stable performance. This contactor is suitable for distribution systems in sectors such as metallurgy, mining, and petrochemicals, and is used to control high-voltage motors, transformers, and capacitive loads at 30kV(40.5kV) and below. It serves as a main switch for remote control, providing stable and reliable performance. Available models include permanent magnet and electromagnetic holding types.

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Parameter

Tech. parameters	Model	180/250-40.5KV	400/40.5KV	630/40.5KV	800/40.5kV	1000/1250-40.5kV
Rated voltage of the main loop	(KV）	40.5	40.5	40.5	40.5	40.5
Rated current of the main loop	(A)	160、250	400	630	800	1000/1250
Main loop making capability	（A/100times)	2500	4000	6300	8000	10000
Main loop switching capability	(A/25）	2000	3200	5000	6000	8000
Ultimate breaking capacity	(A/3times)	4000	4500	6300	8000	10000
Permanent magnet mechanism lifespan	(10,000 times)	10	10	10	10	10
Power frequency withstand voltage of main loop (fracture)	(KV）	85	85	85	85	85
Phase-phase/phase-ground power frequency withstand voltage	(KV）	95	95	95	95	95
Lightning impulse withstand voltage level	(KV）	185	185	185	185	185
Rated operating frequency	(times/h)	100	100	100	195	195
Clearance between open contacts	(mm)	15±2	15±2	15±2	100	100
Overtravel	(mm)	3±1	3±1	3±1	15±2	15±2
Main loop resistance	(μΩ)	≤200	≤200	≤200	3±1	3±1
Secondary control voltage	（V)	AC or DC:110/220Y380 or customized

Typical Application Scenarios：

Heavy Industries & Petrochemical Sector: Reliable power control and motor switching in oil, gas, chemical, and metallurgical processing facilities.
Mining Operations: Built to withstand the dust, vibration, and rigorous duty cycles typical of underground and surface mining distribution systems.
Power Generation & 40.5kV Substations: Primary and auxiliary circuit switching in high-voltage transformer substations and power plants.
Capacitor Banks & Reactive Power Control: Surge-free switching of high-voltage capacitor banks for large-scale power factor correction.

Why Choose Chennuo Electric?

Specialized Manufacturing Expertise: Backed by years of industry leadership in high and low-voltage power distribution equipment and custom technological innovations.
Rigorous Quality Assurance: Every JCZ9 contactor undergoes stringent factory testing—including partial discharge tests, high-voltage dielectric withstand tests, and mechanical endurance verifications—meeting international IEC standards.
Customization Flexibility: We offer tailored secondary control configurations, specific mounting dimensions, and flexible coil voltage options to match your 40.5kV switchgear layouts.
Reliable Global Export Standards: Secure, shock-absorbing export packaging coupled with responsive technical support to safeguard your international project schedules.

Frequently Asked Questions (FAQ)

Q1: What are the main advantages of the solid-sealed pole structure in the JCZ9 40.5kV contactor?
A: The solid-sealed pole completely encapsulates the vacuum interrupter in epoxy resin. This prevents environmental contamination (dust and moisture), increases external insulation strength, eliminates surface flashovers, and ensures long-term reliability in harsh industrial climates.

Q2: What current and voltage range does the JCZ9 series support?
A: The JCZ9 series is rated for 40.5kV systems and covers a versatile current range from 160A to 1250A, making it suitable for a wide variety of heavy-duty industrial loads.

Q3: Does the JCZ9 series use a permanent magnet mechanism?
A: Yes. It is equipped with an advanced permanent magnet mechanism combined with a smart controller, which significantly reduces mechanical wear, lowers energy consumption, and provides exceptional operational stability.

Q4: Is the JCZ9 contactor suitable for frequent switching applications?
A: Absolutely. It is specifically designed for high-frequency operations, boasting an electrical life of up to 100,000 cycles, which outperforms standard circuit breakers in routine load-switching duties.