Affordable Low Ring Main Unit for Efficient Power Management
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Product Highlights
- Fully Insulated & Sealed: Stainless steel housing encloses all live parts, ensuring safety and maintenance-free operation.
- Modular & Expandable: Flexible combination of fixed and extensible units with horizontal busbars for easy expansion.
- Long Design Life: Designed for over 30 years of reliable operation in indoor and outdoor environments.
- GB Standard Certified: Complies with GB standards and holds type test reports from National High Voltage Center.
- Intelligent Automation: Supports TV-like automation solutions to minimize on-site installation and commissioning.
- High Safety Reliability: Extended busbar safety insulation and shielding ensure high reliability and personal safety.
Product Attributes
- Customization
- Available
- Certification
- GB Standard
- Shell Material
- Stainless Steel
- Model NO.
- Hbrm6-12/24
- Voltage Level
- Medium Voltage
- Installation
- Removable
- Structure
- Withdrawable
- Current
- AC
- Compartments
- Bus Room, Load Switch Room
- Busbar Arrangement
- Horizontal (for Easy Expansion)
- Rated Voltage
- 12kv / 24kv (for 10kv / 20kv Distribution Systems)
- Model
- Hbrm6-12/24
- Modularity / Structure
- Modular Unit Design
- Design Life
- > 30 Years
- Transport Package
- Wooden
- Specification
- 800*1200*2200mm
- Trademark
- CHBEST POWER
- Origin
- China
- Package Size
- 800.00cm * 800.00cm * 2000.00cm
- Package Gross Weight
- 200.000kg
Shipping
- Shipping Cost:
- Contact the supplier about freight and estimated delivery time.
Online Trading Protection
- Payment Guarantee
-
Platform-protected payments with refund support for eligible order issues.
- Platform Logistics
- Clearer shipment tracking with platform-supported logistics.
- Inspection Service
- Optional pre-shipment inspection for quality and quantity checks.
- After-Sales & Dispute Handling
- Platform-assisted dispute resolution, including refunds or returns when applicable.
Only orders placed and paid through Made-in-China.com Secured Trading are eligible for payment protection and the corresponding platform services.
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Product Description


The switchgear is modular unit mode, which can be combined according to different purposes;It is divided into two categories: fixed unit combination and expandable unit, which can meet the needs of various substations for flexible use of compact switchgear.
HBRM6-12/24 fully insulated inflatable cabinet is divided into non-extensible standard configuration and extensible standard configuration.Because of the combination of full module and half module as well as its own expansibility, it has very special flexibility.
HBRM6-12/24 fully insulated aerated cabinet is in compliance with GB standard.
The design life is more than 30 years for indoor (40 ° C) and outdoor (-50 ° C) operation.
project | units | C module | F module | V module | CB module | ||
Load switch | Combination electric appliance | vacuum switch | Isolation/grounding switch | vacuum circuit breaker | Isolation/grounding switch | ||
The rated voltage | KV | 12 | 12 | 12 | 12 | 12 | 12 |
Rated frequency | HZ | 50 | 50 | 50 | 50 | 50 | 50 |
Power frequency withstand voltage (phase/fracture) | KV | 42/48 | 42/48 | 42/48 | 42/48 | 42/48 | 42/48a |
Lightning shock withstand voltage | KV | 75/85 | 75/85 | 75/85 | 75/85 | 75/85 | 75/85 |
Rated current | A | 630 | infuse1) | 630 | 1250/630 | ||
Breaking ability: | |||||||
Rated closed loop breaking current | A | 630 | |||||
Rated cable charging break current | A | 10 | |||||
Rated short circuit closing current (peak) | A | 50 | 80 | ||||
Rated peak tolerable current | kA | 50 | |||||
Rated short-time tolerable current | kA/35 | 20 | |||||
Rated short circuit breaking current | kA | 31.5 | 20 | 25 | |||
Rated transfer current | A | 1700 | |||||
Use the maximum current of the fuse | A | - | 125 | ||||
Loop resistance | -n | ≤300 | ≤600 | ||||
Mechanical life | next | 5000 | 3000 | 5000 | 2000 | 5000 | 2000 |
Note: Depends on current rating of the fuse | |||||||




A: We have our factory.
A: We provide a 12-month warranty.
A: T/T and L/C payments can be accepted.
A: We implement 100% quality control inspection to ensure that each product is qualified. We have more than 10 quality control inspections during the manufacturing process from raw materials to final products. Each of our units has 3C certificates. If you need any other certificates, we can help you apply for them.
A: Usually no. All our products are produced according to your order quantity.
A: It is better to provide technical drawings and technical specification documents, or you can tell us some detailed technical specifications date as shown below "Information required for quotation and ordering.
About the Supplier
This supplier has been audited by CTI. Verify the report on the official CTI website with ID "QIP-ASI263065". Items marked "" are certified.
Company Profile
Zhejiang CHBEST Power Technology Co., Ltd. is located in Liushi Town, the world-renowned capital of China's electrical appliances, with the blue sea in the east, Wenzhou Airport and Wenzhou Railway Station in the south, Yandang Mountain, a national scenic spot known as the "World Geopark" in the north, and the coastal high-speed railway, highway and 104 National Highway run through, with convenient sea, land and air transportation and strong cultural atmosphere, which is a resort for sightseeing and vacation. It is an enterprise that produces sulfur hexafluoride ring main unit, environmental protection gas insulated ring network switchgear, solid insulated ring main unit, opening and closing station, cable distribution box, high and low voltage complete sets of equipment, etc.
The company has a registered capital of 50 million yuan and nearly 200 employees. The company has strong technical force, bringing together a group of power engineering design and development, manufacturing for many years of power automation technology elite, the company developed new products in environmental protection, miniaturization, intelligence, maintenance-free and other aspects to achieve a number of technological breakthroughs, the company has always put customer satisfaction in mind, the establishment of a nationwide customer service network, equipped with hard-working, technical customer service team, so that customers can respond to their needs.
The company adheres to the business principle of "keeping the right and surprising· harmony and difference", in line with the tenet of "seeking development by science and technology, seeking efficiency by quality" and "quality first, reputation-based", wholeheartedly providing users with high-quality products and services, constantly pursuing innovation in the fierce market competition, ensuring quality and perfect service has won the praise of many customers.
Facing the future, the implementation of the brand development strategy, continue to new product development, scientific and technological innovation as the guide, consolidate and develop the dominant position of existing products, and constantly open up the market to keep pace with the times, and strive to create "Shanghai CHBEST" one by one our own brand!
About Our Factory & Business Background
- Address
- Qixi Village, Liushi Town, Yueqing City, Wenzhou, Zhejiang, China
-
Plant Area
- 10908 square meters
-
Terms of Payment
- LC, T/T, D/P, PayPal, Western Union, Small-amount payment
-
International Commercial Terms(Incoterms)
- FOB, CFR, CIF, EXW
-
Average Lead Time
-
Peak Season Lead Time: one month
Off Season Lead Time: within 15 workdays -
Nearest Port
- Qili Port
-
Minimum Order Quantity
- 1pc
-
Supply Chain Partners
- 10
Our Production Capability & Technical Expertise
- Main Products
- Transformer, Ring Main Unit Series (Rmu), High Voltage Switchgear Series, Packaged Substation Series, New Energy Series, Component Series
-
Production Lines
- 2
-
Production Machines
- Copper strip machine, Copper strip machine, Copper strip machine, plate shearing machine, Vacuum Unit, Laser cutting machine, Punching machine, Laser machine
-
QA/QC inspectors
- 2 people
-
Inspection Type for Finished Products
- 100% inspection(Visual inspection & Function inspection)
-
Inspection Method for Finished Products
- Have instruction but no written records
-
Customization Options
- Customization from Samples, Customization from Designs, Full Customization, Minor Customization, Flexible customization
-
ODM Service Available
- Yes
-
OEM Service Available
- Yes
-
R&D Engineers
- 2 people
-
Traceability of Raw Materials
- No
Our Industry Experience & Global Business Record
-
Export Year
- 1 year
-
Main Markets
- Domestic
-
Number of Foreign Trading Staff
- 2
-
Overseas Agent/Branch
- No
-
New Products Launched in Last year
- Yes
FAQ
- Are you a manufacturer, factory, or trading company?
- We have our factory.
- What are your warranty terms?
- We provide a 12-month warranty.
- What is the production time?
- Generally it takes 4 to 6 weeks, depending on different styles.
- What are your payment terms?
- T/T and L/C payments can be accepted.
- How do you do quality control in your factory?
- We implement 100% quality control inspection to ensure that each product is qualified. We have more than 10 quality control inspections during the manufacturing process from raw materials to final products. Each of our units has 3C certificates. If you need any other certificates, we can help you apply for them.
- Do you have products in stock?
- Usually no. All our products are produced according to your order quantity.
- What do I need to provide for a custom transformer?
- It is better to provide technical drawings and technical specification documents, or you can tell us some detailed technical specifications date as shown below 'Information required for quotation and ordering.
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