What are the main applications for this ring main unit?

It is mainly used in three-phase AC ring networks, terminal distribution networks and industrial electrical equipment, undertaking the functions of receiving, distributing electrical energy, etc. It is also suitable for being installed in box-type substations.

What certifications does the product hold?

The product is fully certified by ISO 9001, CCC and CQC, with MTBF over 30000h, ensuring quality reaches international advanced level.

What is the minimum order quantity?

The minimum order quantity is 1 Set.

Solid Insulated Ring Main Unit Enhancing Electrical Safety Levels

Name: Solid Insulated Ring Main Unit Enhancing Electrical Safety Levels
Brand: Shandong Qiansheng Electric Power Equipment Engineering Co., Ltd.
SKU: 2131951262

Shandong, ChinaShandong Qiansheng Electric Power Equipment Engineering Co., Ltd.

US$880.00-2,828.00

1 Piece

Sample price:US$0.00/piece.Request sample

Product profile

Customization

Available

Type

Distribution Metering Box

Structure

Protection

Model NO.

QSHWG

Certification

ISO9001:2000, VDE, CCC

Form

Partly-welded Type

Operation Voltage

High Voltage

Size

3 Uint

Application Range

High-rise Buildings

Shell Material

Stainless Steel

Shell Protection Grade

IP56

Brand

FUJI

Rated Voltage

Customized

Rated Current

630A

Short-Circuit Interrupting Current

Supported

IP Rating

IP56

Installation Type

Supported

Operation Mode

One-Step

Switch Type

One-Step

Interlocking Device

Supported

Operating Temperature Range

-40℃--+60℃

Altitude Adaptability

Customized

Corrosion Resistance Class

Customized

Implementation Standard

Customized

Warranty Period

5 Years

After-Sales Response Time

24h

Mechanical Life

10000

Transport Package

Wooden Box

Specification

customized

Trademark

Origin

Linyi City, Shandong Province

HS Code

8537109090

Production Capacity

5000PCS/Year

Key features

High Current Capacity: 630A continuous rated current and 20kA/3s short-time withstand current for stable full-load operation.

Durable Mechanical Design: Supports over 10,000 fault-free operations with 5000N closing load and IP54/IP67 protection grades.

Corrosion Resistant Material: 2.0mm cold-rolled steel plate withstands 1000h salt spray test without rust, ensuring ultra-long service life.

Global Quality Certifications: Certified by ISO 9001, CCC, and CQC with MTBF over 30,000 hours for trusted international quality.

Customizable Rated Voltage: Rated voltage is fully customizable to meet specific project requirements and grid standards.

Altitude Adaptability: Altitude adaptability is customizable to ensure optimal performance in various geographical environments.

Corrosion Resistance Class: Corrosion resistance class is customizable to suit harsh environmental conditions and extend equipment life.

Company profile

Shandong Qiansheng Electric Power Equipment Engineering Co., Ltd.

Shandong, China

CertifiedBusiness Type: Manufacturer/Factory CertifiedR&D Capacity: ODM Service Available & OEM Service Available CertifiedCustomization Options: Customization from Samples, Customization from Designs, etc. CertifiedExport Year: Confidential CertifiedNearest Port: Qingdao PortAverage Response Time: ≤0.88h

AI-Powered supplier vetting

SummaryThe supplier presents itself as a professional manufacturer in the electrical and electronics sector, with a 17,316 m² manufacturing plant, R&D, production, sales, and after-sales functions, plus stated quality-management controls. It offers broad customization and ODM services, uses CNC laser cutting, shearing, and bending equipment, and has documented procedures for finished-product inspection, service assessment, corrective actions, and complaint handling. Its business scope includes distribution and control equipment, metal structures, charging piles, charging infrastructure, and related power equipment. However, it reports no new products in the past year, no SDK, no overseas warehouse, showroom, agent or branch, or offline trade-show participation. Export-start information is confidential, overseas service coverage is recorded as zero, and the financial data provided are coded values without sufficient interpretable evidence. The materials do not establish certifications or specific customer cases.

Supplier typeThe supplier is identified as a professional manufacturer serving the Electrical & Electronics sector, with R&D, production, sales, and after-sales functions. Its stated business scope covers control equipment, metal structures, charging piles, charging infrastructure, and power facilities.

After-Sales capabilityThe company states that it provides after-sales service and has written procedures with records for service assessment, corrective and preventive actions, and customer complaints. However, it reports no overseas warehouse, showroom, agent or branch, and overseas service coverage is recorded as zero, limiting demonstrated international service reach.

Production capacityThe supplier reports a 17,316 m² manufacturing plant, CNC laser cutting, shearing and bending machines, standardized finished-product inspection instructions, and documented service procedures. It also reports peak- and off-season lead times within 15 workdays, supporting a positive assessment of stated production capability.

Customization capabilityThe supplier explicitly offers customization from samples, designs, full customization, minor customization, and flexible customization, and separately states ODM availability. These repeated declarations provide direct evidence of broad customization capability.

Product Q&A

Q:What is the warranty period of the ring main unit, and what does the warranty cover?

The warranty period is 1 year (3 years for core components), covering manufacturing defects, component quality failures and installation process issues; excluding damages caused by human factors or natural disasters.

Q:How to deal with overheating or discharge faults at cable joints?

First cut off power to cool down, check the joint tightening torque and installation process; if there is looseness or damage, after-sales will reprocess the joint and conduct insulation testing to prevent fault expansion.

Q:How to handle SF6 gas chamber leakage of the ring main unit?

Stop equipment operation immediately and contact the after-sales team; technicians will use professional instruments to detect leakage points, provide free repair or replacement of the gas chamber within the warranty period, and verify the pressure interlock function.

Q:What is the troubleshooting method for DTU communication failures (such as inability to connect to the network or abnormal data transmission)?

First check the SIM card installation, tariff status and antenna connection; then verify configuration parameters such as server address and baud rate; contact after-sales for remote assistance or on-site maintenance if the problem persists.

Q:How to charge for maintenance services outside the warranty period?

Charged based on the cost of spare parts required for maintenance + on-site service fee with transparent standards; annual maintenance packages are available with preferential prices and priority services.