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Mining Explosion-Proof Intrinsically Safe Lighting Transformer Protection Device
US$4,960.00
1 Piece
Product profile
Customization
AvailableCertification
ISO9001, CCCProtection
IP65Model NO.
ZJZ-16/1140(660)SM-2Installation
VerticalHousing
Cast IronExplosion-Proof Grade
Exd[Ib] I MBWeight
520Transport Package
CaseSpecification
L*D*H: 992*725*828Trademark
WantaiOrigin
Huainan, ChinaHS Code
8537209000Production Capacity
1000 PCS/YearKey features
Dual Circuit Independent Control: Independently controls signal and lighting circuits to save power and prevent interference.
Microcomputer Intelligent Protection: Uses single-chip microcomputer for high sensitivity, anti-interference, and reliable action.
Explosion-Proof Safety: Designed for underground coal mines with Exd[Ib] I MB grade and IP65 protection.
Modbus Communication: Supports standard Modbus protocol for easy docking with other automation equipment.
Comprehensive Protection Functions: Includes short circuit, leakage, leakage blocking, and insulation monitoring protections.
Voltage Conversion Capability: Converts 1140V/660V to 127V without needing to pull out the dry transformer.
OEM/ODM Customization: Manufacturer offers OEM and ODM services with 57 R&D engineers.
User-Friendly Interface: Features LCD display, menu operation, password authorization, and fault memory.
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: ≤4.49h 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 input and output voltage?
A:
The device accepts 1140V or 660V input and provides 127V output for lighting signal equipment.
Q:Is this device suitable for explosive environments?
A:
Yes, it is designed for underground coal mines containing coal dust and explosive gas, with Exd[Ib] I MB explosion-proof grade.
Q:Can the two circuits be controlled independently?
A:
Yes, the device allows independent control of two circuits, enabling power saving by stopping unused circuits.
Q:What communication protocols are supported?
A:
It supports the standard Modbus communication protocol for monitoring and docking with automation equipment.
Q:What protections does the device offer?
A:
It provides short circuit, leakage, leakage blocking, insulation monitoring, and long-distance short-circuit protection.
Send Inquiry
*To:
Huainan Wantai Electric Co., Ltd.
Huainan Wantai Electric Co., Ltd.*Content:
Supplier replies will be sent to your registered email
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