What is the lead time for production?

The average lead time is one month for both peak season and off-season.

What certifications does the product have?

The product holds ISO9001 and CCC certifications, and the housing is made of cast iron with corrosion resistance.

Flameproof and Intrinsically Safe Vacuum Combination Switch in Coal Mine

Name: Flameproof and Intrinsically Safe Vacuum Combination Switch in Coal Mine
Brand: Huainan Wantai Electric Co., Ltd.
SKU: 949591245

Anhui, ChinaHuainan Wantai Electric Co., Ltd.

US$11,429.00

1 Set

Product profile

Customization

Available

Certification

ISO9001, CCC

Protection

Corrosion Resistance

Model NO.

QJZ-4*400/1140(660)

Installation

Vertical

Housing

Cast Iron

Transport Package

Wooden Box

Trademark

Wantai Group

Origin

China

HS Code

8504231100

Production Capacity

10000sets/Year

Key features

Advanced PLC Protection: Adopts PLC + industrial control integrated machine for high protection accuracy and fast response speed.

Comprehensive Safety Features: Provides overload, short circuit, leakage, undervoltage, overvoltage, and phase failure protection.

Explosion-Proof Design: Intrinsically safe and flameproof, suitable for mines with explosive gas and coal dust.

Multi-Motor Control: Can control and protect starting/stopping of up to 6 three-phase squirrel cage asynchronous motors.

Wide Voltage Adaptability: Works reliably within 75%-110% of rated voltage and releases at 20%-60% voltage.

Fast Short-Circuit Response: Short-circuit protection trips with an action time of 0.2-0.4 seconds.

Communication & Networking: Supports power metering, communication networking, and centralized monitoring functions.

Customization Options: ODM and OEM services are available to meet specific mining requirements.

Company profile

Huainan Wantai Electric Co., Ltd.

Anhui, China

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: ≤4.98h CertifiedTerms of Payment: LC, T/T, PayPal, etc.

AI-Powered supplier vetting

SummaryHuainan Wantai Electric Co., Ltd. is a China-based limited company established in 2009, operating in mining electronics and related electrical equipment. The supplier reports ISO9001:2015, ISO14001:2015, and OHSAS18001:2007 certifications, three government-recognized R&D institutions, and 57 years of cumulative R&D engineer experience. Its stated capabilities include development, production, sales, and service, with products such as mine soft starters, feeder switches, lamps, automation systems, switch cabinets, and protection devices. Evidence also indicates a manufacturing plant of 41,708 m², regional sales coverage across multiple Chinese provinces, and dedicated sales and post-sales personnel. However, the provided information does not establish detailed financial strength, customer-specific case studies, or explicit customization processes.

Supplier typeThe supplier is identified as Huainan Wantai Electric Co., Ltd., a Chinese limited company based in Anhui. Its stated activities combine development, production, sales, and service for mining electronic and electrical products, although another record describes its company nature as a trading company.

CertificationsThe supplier explicitly reports ISO9001:2015 quality certification, ISO14001:2015 environmental certification, and OHSAS18001:2007 certification, with ISO9001 also referenced in its company description. These certifications support documented quality, environmental, and occupational health and safety management systems.

After-Sales capabilityThe supplier states that it has experienced sales and post-sales members and describes its business as integrating development, production, sales, and service. This supports the existence of after-sales resources, but no response-time, service-network, spare-parts, or technical-support metrics are provided.

R&D capabilityThe supplier reports three government-recognized R&D institutions and 57 years of total R&D engineer experience. Its stated product-development goal is to deliver safer, more energy-saving, and more efficient system solutions, indicating established R&D resources and innovation orientation.

Production capacityThe supplier reports 371 employees in one company record and 500 employees in a company description, a 41,708 m² manufacturing plant, and an integrated development and production operation. It also claims ready production facilities and broad mining-electronics product coverage, supporting substantial production capability, although verified capacity and output figures are not provided.

Product Q&A

Q:What is the main application of this switch?

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:What protection functions does it offer?

It provides short circuit, overload, leakage, open-phase, undervoltage, overvoltage, three-phase imbalance, and phase failure protection.

Q:What is the rated operating voltage?

The rated operating voltage is AC1140V or AC660V at 50Hz.

Q:How many motors can it control simultaneously?

It can control and protect the starting and stopping of 6 or less three-phase squirrel cage asynchronous motors at the same time.

Q:Is customization available for this product?

Yes, OEM and ODM services are available. Different models with varying currents (1600A-2400A) and output circuits (4-10) are offered.