Is the device suitable for coal mines?

Yes, it is an explosion-proof vacuum feeder switch specifically designed for use in coal mines and underground power supply systems.

What is the short circuit protection action time?

The short circuit protection action time is less than 100ms.

Mining Ex-Proof Vacuum Feed Switch

Name: Mining Ex-Proof Vacuum Feed Switch
Brand: Huainan Wantai Electric Co., Ltd.
SKU: 1931127215

Anhui, ChinaHuainan Wantai Electric Co., Ltd.

US$3,285.00

1-9 Pieces

US$3,280.00

10+ Pieces

Product profile

Customization

Available

Certification

ISO9001

Protection

IP65

Model NO.

KBZ2 series

Installation

Vertical

Housing

Explosion-Proof

Rated Voltage

660V or 1140V

Transport Package

Case

Specification

AC 50Hz

Trademark

Wantai

Origin

China

Production Capacity

1000 Sets Per Month

Key features

Dual-Chip Protection System: High-performance microprocessors ensure high accuracy and fast response for overload, short circuit, and leakage protection.

Comprehensive Protection Functions: Features overload, short circuit, leakage, undervoltage, overvoltage, and three-phase imbalance protection with selective leakage capability.

Intuitive LCD Interface: Chinese character LCD with menu-type human-computer interface displays real-time data like current, voltage, and fault information.

Parameter Memory Function: Automatically saves and recalls protection parameters and fault information after power-on or reset for convenient maintenance.

Flexible Communication Options: Supports RS485 or power line carrier communication interfaces for easy connection with monitoring systems.

Modular & Anti-Interference Design: Adopts modular structure with optimized software and hardware anti-interference processing to extend service life.

High Electrical & Mechanical Life: Rated for 3000 electrical operations and 15000 mechanical operations with a limit break current of 9KA.

Customizable Rated Voltage: Available in 660V or 1140V rated voltage options to suit different mining power supply systems.

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: ≤3.29h 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 are the main protection functions?

It provides overload, short circuit (phase sensitive and current amplitude), leakage lockout/protection, selective leakage, undervoltage, overvoltage, three-phase imbalance, gas lockout, wind power lockout, and power metering.

Q:What is the rated voltage and current?

The rated voltage is 660V or 1140V, and the rated current options are 800A or 1000A.

Q:How does the memory function work?

The protector memorizes and saves adjusted protection parameters and fault information. These are automatically recalled upon power-on or reset, facilitating easier maintenance.

Q:Can it connect to a monitoring system?

Yes, it supports data communication interfaces, including RS485 or domestic leading power line carrier communication, allowing connection to monitoring systems.

Q:What is the electrical and mechanical life?

The electrical life is rated for 3000 times, and the mechanical life is rated for 15000 times.