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Mine Use Explosion-Proof and Intrinsically Safe Vacuum Combination Switch
US$11,429.00
1 Set
Product profile
Customization
AvailableCertification
ISO9001, CCCProtection
Corrosion ResistanceModel NO.
QJZ-4*400/1140(660)Installation
VerticalHousing
Cast IronTransport Package
Wooden BoxTrademark
Wantai GroupOrigin
ChinaHS Code
8504231100Production Capacity
10000sets/YearKey features
Advanced PLC Protection: Uses PLC + industrial control for high-precision data processing and fast response.
Comprehensive Safety Features: Protects against overload, short circuit, leakage, undervoltage, and phase failure.
Explosion-Proof Design: Intrinsically safe and explosion-proof, suitable for mines with explosive gas.
Multi-Motor Control: Controls up to 6 three-phase squirrel cage asynchronous motors simultaneously.
Wide Voltage Tolerance: Reliable operation within 75%-110% of rated control power supply voltage.
Fast Short-Circuit Response: Short-circuit protection trips in 0.2-0.4s when current reaches set multiple.
Communication & Networking: Supports power metering and communication networking for centralized monitoring.
OEM/ODM Customization: OEM and ODM services available for customized mining equipment solutions.
Company profile

CertifiedBusiness Type: Manufacturer/Factory & Trading Company CertifiedR&D Capacity: ODM Service Available & OEM Service AvailableExport Year: 2009-09-02 CertifiedNearest Port: Shanghai PortAverage Response Time: ≤2.77h CertifiedTerms of Payment: LC, T/T, PayPal, etc.
AI-Powered supplier vetting
SummaryHuainan Wantai Electric Co., Ltd., established in 2009, is a limited company based in Anhui, China. Specializing in the development and production of mining equipment, the company holds ISO9001:2015, ISO14001:2015, and OHSAS18001:2007 certifications. It operates a large manufacturing plant and exports 11% to 20% of its products. With 57 R&D engineers and three government-recognized R&D institutions, the company emphasizes innovation and efficient energy solutions. It boasts a strong presence in the mining electronic industry, supported by a robust employee base and a commitment to quality and service.
Supplier typeHuainan Wantai Electric Co., Ltd. is a combined trade and manufacturing company, structured as a limited company in the manufacturing industry.
CertificationsThe supplier holds ISO9001:2015, ISO14001:2015, and OHSAS18001:2007 certifications, indicating robust quality, environmental, and occupational health and safety management systems.
After-Sales capabilityThe company has experienced post-sales members, suggesting a capacity for effective after-sales service.
R&D capabilityWith 57 R&D engineers and three government-recognized R&D institutions, the company demonstrates strong innovation capabilities.
Production capacityThe company has a substantial manufacturing plant of 41,708 m² and is a major player in the mining electronic industry.
Client casesThe company has a strong sales presence in various provinces in China, indicating an established customer base.
Product Q&A
Q:What is the main application scenario for this switch?
A:
It is applicable to mines with explosive gas and coal dust, suitable for centralized monitoring of mining, transportation, and working faces with concentrated power loads.
Q:How many motors can this switch control simultaneously?
A:
It can control and protect the starting and stopping of 6 or less three-phase squirrel cage asynchronous motors at the same time.
Q:What protection functions are included?
A:
It provides protection against overload, short circuit, leakage, undervoltage, overvoltage, three-phase imbalance, phase failure, and includes power metering and communication networking.
Q:What is the rated operating voltage?
A:
The rated operating voltage is AC 1140V or AC 660V.
Q:Does the manufacturer offer OEM or ODM services?
A:
Yes, OEM and ODM services are available for customized solutions.
Send Inquiry
*To:
Huainan Wantai Electric Co., Ltd.
Huainan Wantai Electric Co., Ltd.*Content:
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