JCZ8G 10kV/12 kV Vacuum Contactor for high-altitude applications
Key attributes
| Brand | Wone Store |
| Model NO. | JCZ8G 10kV/12 kV Vacuum Contactor for high-altitude applications |
| Rated voltage | 12kV |
| Rated normal current | 800A |
| Rated frequency | 50/60Hz |
| Series | JCZ8G |
Product descriptions from the supplier
Product Description
This series of high-altitude high-voltage vacuum contactors have been developed by our company in response to market demands. We use high-quality vacuum interrupters , which achieves military-grade quality. The structure consists of a metal frame and insulating supports, ensuring robustness and reliability with more stable performance. The main circuit center distance ranges from 190mm to 210mm. The main circuit vacuum arc-extinguishing chamber features a sealed structure, providing stable and reliable insulation performance with a large creepage distance, large stroke, and strong breaking capacity. It is suitable for plateau and high-altitude areas with altitudes between 2000 and 4000 meters. It is used for long-distance switching, analysis, and frequent starting and controlling of AC motors, transformers, and capacitors, and other applications. There are two types available: electromagnetic holding and permanent magnet holding.
Feature
The structure consists of a metal frame and insulating supports, ensuring reliability with more stable performance.
The main circuit center distance ranges from 190mm to 210mm. The main circuit vacuum arc-extinguishing chamber features a sealed structure, providing stable and reliable insulation performance with a large creepage distance,large stroke, and strong breaking capacity. It is suitable for plateau and high-altitude areas with altitudes between 2000 and 4000 meters. It is used for long-distance switching, analysis, and frequent starting and controlling of AC motors, transformers, and capacitors, and other applications.
There are two types available: electromagnetic holding and permanent magnet holding.
Parameter
| Tech. parameters | Unit | 160/12KV | 250/12KV | 400/12KV | 630/12KV | 800/12KV |
| Rated voltage of Main Loop | (KV) | 12 | 12 | 12 | 12 | 12 |
| Rated current of Main Loop | (A) | 160 | 250 | 400 | 630 | 800 |
| Main loop making capacity | (A/100times) | 1600 | 2500 | 4000 | 6300 | 8000 |
| The main circuit is on/off | (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) | 48 | 48 | 48 | 48 | 48 |
| Phase-phase/phase-to-ground power frequency withstand voltage | (KV) | 50 | 50 | 50 | 50 | 50 |
| Lightning impulse withstand voltage | (KV) | 75 | 75 | 75 | 75 | 75 |
| Rated operating frequency | (Times/h) | 300 | 300 | 300 | 300 | 300 |
| Terminal voltage | (N) | >100 | >100 | >100 | >100 | >100 |
| Clearance between open contacts | (mm) | 7±0.5 | 7±0.5 | 7±0.5 | 7±0.5 | 7±0.5 |
| Overtravel | (mm) | 1.5±0.5 | 1.5±0.5 | 1.5±0.5 | 1.5±0.5 | 1.5±0.5 |
| weight | (KG) | 35 | 35 | 35 | 35 | 35 |
| Main loop resistance | (μΩ) | ≤200 | ≤200 | ≤200 | ≤200 | ≤200 |
| Secondary control voltage | (V) | AD or DC: 110/220/380 or customized | ||||
Install
Online store
On-time delivery rate
Response time
100.0%
≤4h
Company overview
Workplace: 1000m²
Total staff:
Highest Annual Export(usD): 300000000
Services
Business Type: Sales
Main Categories: High Voltage Electrical Apparatus/Low Voltage Electrical Apparatus/Wire cable/Instrument meters/New energy/Tester/Production equipment/Generator/Electrical fittings/Integrated Electrical Equipment/Instrument Transformer/Equipment Parts
Whole life care manager
Whole-life care management services for equipment procurement, use, maintenance, and after-sales, ensuring safe operation of electrical equipment, continuous control, and worry-free electricity consumption.
The equipment supplier has passed platform qualification certification and technical evaluation,
ensuring compliance, professionalism, and reliability from the source.
Related Products
-
SVC series12kV/400A Vacuum Contactor
-
JCZ5 12kV High Voltage Vacuum Contactor
-
JCZ1-7.2kV(12kV) High Voltage Vacuum Contactor
-
CKG3 6kV 7.2kV 10kV 12kV High Voltage Vacuum Contactor
-
CKG4(B) High Voltage Vacuum Contactor
-
JCZ8C-6kV/12kV Series Medium Voltage Vacuum Contactor
-
600V-1.5kV Low-Voltage Vacuum Contactor
Related Knowledges
-
How to properly inspect and maintain a transformer?1 Transformer Testing and Protection Grounding is divided into working grounding and protective grounding. Working grounding: Grounding performed to meet the operational requirements of equipment.Protective grounding: Grounding implemented to prevent the metal enclosures of operating electrical equipment, structures of switchgear installations, and transmission towers from becoming energized, thereby endangering personal and equipment safety. Therefore, grounding of the transformer neutral pointOliver Watts10/18/2025 -
How to select a dry-type transformer?1. Temperature Control SystemOne of the main causes of transformer failure is insulation damage, and the greatest threat to insulation comes from exceeding the allowable temperature limit of the windings. Therefore, monitoring temperature and implementing alarm systems for transformers in operation are essential. The following introduces the temperature control system using the TTC-300 as an example.1.1 Automatic Cooling FansA thermistor is pre-embedded at the hottest spot of the low-voltage winJames10/18/2025 -
Comprehensive Analysis of Global Transformer StandardsComparison of Domestic and International Transformer StandardsAs a core component of power systems, the performance and safety of transformers directly affect grid operation quality. The IEC 60076 series standards established by the International Electrotechnical Commission (IEC) correspond multidimensionally with China’s GB/T 1094 series standards in technical specifications. For example, regarding insulation levels, IEC specifies that power frequency withstand voltage for transformers rated atNoah10/18/2025 -
How to Choose the Right Transformer？Transformer Selection and Configuration Standards1. Importance of Transformer Selection and ConfigurationTransformers play a critical role in power systems. They adjust voltage levels to suit different requirements, enabling electricity generated at power plants to be efficiently transmitted and distributed. Improper transformer selection or configuration can lead to serious issues. For example, if the capacity is too small, the transformer may not support the connected load, causing voltage droJames10/18/2025 -
How to handle transformer faults?Common transformer faults and their handling methods.1. Transformer OverheatingOverheating is extremely harmful to transformers. Most transformer insulation failures are caused by overheating. Rising temperature reduces the dielectric strength and mechanical strength of insulation materials. IEC 354, Loading Guide for Transformers, states that when the hottest spot temperature of a transformer reaches 140°C, bubbles will form in the oil. These bubbles can reduce insulation performance or cause fFelix Spark10/18/2025 -
How to Inspect 10kV Vacuum Circuit Breakers ProperlyI. Inspection of Vacuum Circuit Breakers During Normal Operation1. Inspection in Closed (ON) Position The operating mechanism should be in the closed position; The main shaft roller should be disengaged from the oil damper; The opening spring should be in a charged (stretched) energy-stored state; The length of the moving contact rod of the vacuum interrupter protruding below the guide plate should be approximately 4–5 mm; The bellows inside the vacuum interrupter should be visible (this does noFelix Spark10/18/2025
Related Solutions
-
Dedicated Vacuum Contactor Solution for Port Shore Power SystemsI. Background and ChallengesShore power systems have become core technical equipment for ports to reduce carbon emissions and noise pollution. However, these systems face two major challenges in the harsh operational environment of ports:Severe Environmental Corrosion: High humidity and salt spray in port areas cause serious corrosion to metal components and enclosures of electrical equipment, significantly impacting electrical lifespan and operational reliability.High Switching Requirements:Wone Store09/13/2025 -
ABB Vacuum Contactor KC2 Power Supply System Technical Transformation PlanIssue OverviewThe 10kV air compressor starting system of a company utilizes the ABB vacuum contactor KC2 as the control component for the operating circuit. The dedicated wide-voltage power supply module paired with this contactor presents the following issues:Frequent failures: The power supply module fails to properly transition the voltage from 300V to 12V, resulting in fuse blowouts.Poor heat dissipation: Enclosed installation of the module leads to insufficient heat dissipation, accelerWone Store09/13/2025 -
Solution for Medium-Voltage Motor Control and Protection Using Vacuum Contactor-Fuse (VCF) in a Coal Conveying System1.Project BackgroundA coal conveying system comprises 15 belt conveyors driven by medium-voltage motors. The system operates under complex conditions, with motors often subjected to heavy loads and frequent starts. To address these challenges and achieve effective control and reliable protection during motor startup, the project comprehensively adopts Vacuum Contactor-Fuse (VCF) combination devices for the 6kV medium-voltage motor power distribution. This solution details the technical features,Wone Store09/13/2025
Haven't found the right supplier yet? Let matching verified suppliers find you.
Get Quotation Now
Send inquiry
Download
Get the IEE Business Application
Use the IEE-Business app to find equipment, obtain solutions, connect with experts, and participate in industry collaboration anytime, anywhere—fully supporting the development of your power projects and business.
