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Durable High-Voltage Load Switch with Circuit Breaker Safety Design
US$500.00
1 Piece
Product specifications
Model
Product profile
Customization
AvailableBreaking Capacity
High Voltage Circuit BreakersOperation
Electric TypeModel NO.
FZRN21C-40.5DSpeed
High-Speed Circuit BreakerArc-extinguishing Medium
VacuumInstallation
FixedStructure
Load Switch CombinedPoles Number
3Type
Circuit BreakerFunction
Conventional Circuit Breaker, Circuit-Breaker Failure Protection, Overcurrent Protection, OVP(Overvoltage Protection)Certification
ISO9001-2000, CB, CCCRated Voltage
40.5kvRated Frequency
50HzMaximum Rated Current of Fuse
63/80/100A1min Power Frequency Withstand Voltage
95kvRated Short-Circuit Breaking Current
31.5ARated Transfer Current
2000ARated Handover Current
2000AMechanical Life
10000/2000/2000timesRated Operating Voltage
AC/DC220VTransport Package
Wooden BoxSpecification
1650*1360*1090mmTrademark
CSNBOrigin
ChinaHS Code
8535210000Production Capacity
200 Pieces/WeekKey features
Vacuum Arc Extinction: Uses vacuum interrupter for long service life over 10,000 operations with no fire risk.
Integrated Protection: Combines isolating switch, circuit breaker, earthing switch, and sensor in one compact unit.
High Reliability: Equipped with complete five-prevention functions to prevent misoperations.
Fast Fault Response: Fuse melting triggers load switch opening within 30-40ms for short-circuit protection.
Modular Design: Primary components can be replaced and maintained independently for high interchangeability.
Versatile Operation: Features dedicated spring mechanism supporting electric, manual, and remote control options.
Safety Interlock: Interlocking mechanism between circuit breaker and cabinet door ensures operator safety.
Wind Power Optimized: Specially designed for wind power and photovoltaic box-type substations with simple structure.
Company profile

Wenzhou Ubright Electric Co., Ltd.Zhejiang, China
CertifiedBusiness Type: Trading CompanyExport Year: 2012-07-01Nearest Port: NingboAverage Response Time: ≤4.22hTerms of Payment: T/TInternational Commercial Terms(Incoterms): FOB, EXW, CIF
AI-Powered supplier vetting
SummaryThe supplier is identified as Wenzhou Ubright Electric Co., Ltd., a China-based limited company in Zhejiang operating in electrical and electronics. Its stated product range covers medium- and high-voltage equipment, transformers, substations, switchgear, vacuum circuit breakers, and components for photovoltaic and energy-storage applications. The company reports three-system certification, quality-management and continuous-improvement practices, more than 10 production lines, 11–20 quality-control staff, a manufacturing area of approximately 13,293 m², and stated annual output of 10,000 VS1 vacuum circuit breaker sets. It reports exports beginning in 2012 and sales coverage across Asia and other countries. However, the supplied records contain inconsistencies regarding establishment date, legal identity, business type, and production-output figures, and provide insufficient evidence on after-sales service, customization, and specific customer cases.
CertificationsThe company explicitly states that it has obtained three system certifications: Quality Management, Occupational Health and Safety Management, and Environmental Management. This is direct evidence of certification holding.
Financial creditThe company is reported to have received AAA credit-enterprise ratings for consecutive years and several enterprise honors. However, the records also contain conflicting establishment and identity information, so the credibility evidence cannot be fully validated from the supplied material alone.
R&D capabilityThe supplier describes itself as engaged in R&D and product promotion, continuous improvement, science-and-technology-based development, and products for photovoltaic and energy-storage applications. These statements provide explicit evidence of innovation-oriented activity.
Production capacityThe records report a manufacturing area of approximately 13,293 m², more than 10 production lines, 11–20 quality-control staff, and annual VS1 vacuum circuit breaker output of 10,000 sets. Export activity is also reported, although production and company-profile figures are not fully consistent across the slices.
Product Q&A
Q:Are you a trading company or manufacturer?
A:
Our company is a professional factory with 20 years of experience in the field of indoor high-voltage load break switches, vacuum circuit breakers, disconnectors, earthing switches, high-voltage fuses, and pad-mounted transformers for wind power, photovoltaic (PV) energy storage systems. It is also an excellent supplier to the State Grid Corporation of China.
Q:Do you accept customized service?
A:
We offer OEM/ODM service, can print your logo on product. our professional technical and quotation team can provice a satisfied project according to your drawing and parameters.
Q:What is your MOQ?
A:
Our MOQ is 1 piece.
Q:How long is your delivery lead time?
A:
It depends on your product requirement and quantity. Generally, 10~15 working days is available.
Q:How do you solve quality problems?
A:
Please porvide detailed photoes of quality problems. our technical and quality testing department will analyse.we will make a satisfied soluton within 2 days.
Send Inquiry
*To:
Wenzhou Ubright Electric Co., Ltd.
Wenzhou Ubright Electric Co., Ltd.*Content:
Supplier replies will be sent to your registered email
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