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Single Phase Over-Voltage and Under-Voltage Auto Resume Protector 63A
US$2.67
20-999 Pieces
US$2.65
1,000+ Pieces
Sample price:US$3.00/piece.Request sample
Product profile
Customization
AvailableCurrent Type
ACPhase
Single PhaseModel NO.
SRO-125Frequency Characteristics
Power FrequencyUsage
SVCFrequency
Low FrequencySize
SmallPole
2pole 4poleRated Current
32,40, 63AOperation Voltage
230V/380VACRated Frequency(Hz)
50,60Transport Package
CartonTrademark
LONGROAD/OEMOrigin
ChinaProduction Capacity
10000 UnitsKey features
Auto Resume Protection: Automatically restores power after voltage returns to normal, protecting appliances from shock.
Dual Voltage Support: Supports 230VAC and 380VAC for both two-phase and three-phase systems.
Customizable Ratings: Available in 2 or 4 poles with rated currents of 32A, 40A, or 63A.
High Durability: Electrical machinery life exceeds 100,000 operations for long-term reliability.
Clear Status Indication: Features green power indicator and red protection indicator LEDs for easy monitoring.
Fast Response Time: Cuts off power within 60 seconds during over/under-voltage events.
CE Certified Quality: Product certified by CE, ensuring compliance with international safety standards.
24/7 Emergency Service: Provides immediate on-site fault removal and power restoration support.
Company profile

Business Type: Manufacturer/FactoryExport Year: 2010-03-06 CertifiedNearest Port: Ningbo Port, Shanghai PortAverage Response Time: ≤2.75h CertifiedTerms of Payment: LC, T/T, D/P, etc. CertifiedInternational Commercial Terms(Incoterms): FOB, CIF, CFR
AI-Powered supplier vetting
SummaryYueqing Long Road Electric Co., Ltd. is a China-based limited trading company established in 2014 according to its business profile, while its company description states it was founded in 2010. It supplies low-voltage electrical products, including MCBs, RCCBs, SPDs, MCCBs, contactors, relays, isolators, and photovoltaic combiner boxes. The supplier reports ISO9001:2015 certification, multiple product certifications, eight production lines, MCB output of 20 million pieces, and one-month lead times in both peak and off-peak seasons. It claims exports to more than 80 countries and regions, although the detailed export-market information is limited to Africa, Southeast Asia, and the Middle East. Evidence supports broad product coverage, documented quality systems, and claimed innovation capabilities. However, after-sales resources, customization capability, financial credibility, and customer performance are insufficiently verified. The profile also contains inconsistencies regarding founding year, supplier...
CertificationsThe supplier explicitly reports an ISO9001:2015 management-system certificate. It also claims product certifications including CE, CB, IEC, SGS, Nemko, SAA, SASO, TUV, CCC, Golden Sun, and VDE, but the provided slices do not include certificate numbers, validity dates, or verification documents.
R&D capabilityThe supplier claims strong independent innovation capabilities, core technologies, multiple patents, and leading-level Internet of Things circuit breakers and photovoltaic and communications DC power-distribution products. These statements provide explicit positive evidence, although patent details and independent technical validation are not included.
Production capacityThe profile reports eight production lines, an MCB output of 20 million pieces, a 300.0 m² manufacturing plant, and one-month order fulfillment in both peak and off-peak seasons. These figures support established production capacity, although the relationship between the reported plant area, production lines, and the supplier's trading-company classification is not clarified.
Client casesThe supplier claims sales to countries and regions including the UK, Spain, Portugal, Singapore, Turkey, Russia, Korea, South Africa, and Nigeria, and separately claims coverage of more than 80 countries and regions. A detailed trade record identifies BTCPOWER CEBU INC as an associated buyer with one recorded transaction, providing some customer evidence but not enough to demonstrate a broad, verified customer portfolio.
Product Q&A
Q:How does the auto resume feature work?
A:
When voltage returns to normal after an over/under-voltage event, the circuit automatically turns on and restores power after a delay, protecting appliances from momentary impact.
Q:What are the available rated currents?
A:
The protector is available in rated currents of 32A, 40A, and 63A.
Q:Is the product customizable?
A:
Yes, you can customize the pole configuration (2-pole or 4-pole) and the rated current (32A, 40A, or 63A).
Q:What certifications does this product have?
A:
The product is certified by CE, TUV, CQC, SGS, ROHS, and SASO.
Q:What is the electrical machinery life?
A:
The electrical machinery life exceeds 100,000 operations.
Send Inquiry
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Yueqing Long Road Electric Co., Ltd.
Yueqing Long Road Electric Co., Ltd.*Content:
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