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Phase Failure Protection Thermal Relay for Three Phase Motor Safety
US$2.50
1-999 Pieces
US$2.00
1,000+ Pieces
Sample price:US$2.50/piece.Request sample
Product profile
Customization
AvailableTheory
Thermal RelayUsage
Car Relay, Household Appliances Relay, Communication Relay, Lathe RelayModel NO.
JR28Phase
3Electricity Type
AcNumber of Pole
3Load
Medium Power RelayProtective Characteristics
Sealed RelayAction Principle
Rectifier TypeSize
MiniatureType
Electric Parameter RelayProtection Principle
Bimetal Thermal Operating PrincipleCurrent Setting
Adjustable Current RangeReset Method
Manual or Automatic ResetApplication Focus
Motor ProtectionDesign
Compact and Robust DesignTransport Package
CartonTrademark
Q&SOrigin
ChinaProduction Capacity
500000Key features
Phase Failure Protection: Protects motors from damage caused by overload current and phase failure using bimetal thermal principle.
Adjustable Current Range: Allows precise setting according to the motor's rated current to minimize false tripping.
Dual Reset Options: Supports both manual and automatic reset methods to meet different application requirements.
Compact and Robust Design: Ensures long electrical and mechanical service life in industrial environments.
Auxiliary Contacts: Supports alarm indication and control interlocking for enhanced system monitoring.
Versatile Installation: Designed for direct mounting with contactors or independent installation in control panels.
Wide Application Scope: Suitable for pumps, compressors, conveyors, HVAC systems, and industrial machinery.
Company profile

Business Type: Manufacturer/FactoryExport Year: 2013-03-10Nearest Port: NINGBO; SHANGHAIAverage Response Time: ≤24hTerms of Payment: LC, T/TInternational Commercial Terms(Incoterms): FOB, EXW, CFR, FCA
AI-Powered supplier vetting
SummaryYueqing Quansheng Electric Co., Ltd. is identified as a China-based manufacturer/factory producing circuit-protection and control products, including MCCBs, ACBs, VCBs, fireman switches, magnetic starters, and contactors. The supplier reports ISO 9001-based operations and additional product certifications such as CB, CE, and Semko. Stated annual capacity is 30,000 ACBs, 30,000 VCBs, and 200,000 MCCBs, supported by five production lines and 6–10 quality-control staff. The supplier has exported since 2013, with 90% of total sales reportedly from exports. Evidence supports manufacturing capability, export experience, quality-system certification, and product-focused R&D activity. However, the provided information does not establish after-sales service performance, financial credibility, customization capability, or named customer cases. The supplier’s company classification is somewhat inconsistent across records, which identify both a manufacturer/factory and a trading-company nature.
Supplier typeThe supplier is explicitly listed as a Manufacturer/Factory, with a stated focus on researching, producing, and manufacturing circuit breakers. However, another record classifies the company nature as a trading company, creating a classification inconsistency that should be verified.
CertificationsThe supplier reports ISO 9001 certification or an ISO 9001-based operating system, and also cites product certifications including CB, CE, and Semko. ISO 9001 is explicitly documented, while the other certifications are mentioned in the company description without certificate details.
R&D capabilityThe supplier states that it continuously researches and develops new products, has an operation system covering technical R&D, and is supported by innovative ideas and skilled professors. Its stated product focus is circuit protection, industrial control, and power management, but no R&D investment, patent, laboratory, or product-development metrics are provided.
Production capacityThe supplier reports five production lines and annual output of 30,000 ACBs, 30,000 VCBs, and 200,000 MCCBs, with 6–10 quality-control staff. It also identifies a factory location and manufacturing entity, providing explicit evidence of established production capability.
Product Q&A
Q:Are you a manufacturer or a trading company?
A:
We are a professional manufacturer specializing in high and low voltage electrical products, including MCB, MCCB, ACB, VCB, RCCB and related accessories. All products are produced in our own factories under strict quality control.
Q:What is your Minimum Order Quantity (MOQ)?
A:
Our standard MOQ is flexible and depends on the product model and packaging requirements. Small trial orders are welcome to support new customers during initial cooperation.
Q:Can you provide samples?
A:
Yes, free samples are available for most models. Customers only need to cover the shipping cost.
Q:How do you ensure product quality?
A:
All products undergo strict inspection from raw materials to final testing. We implement full-process quality control, including routine electrical performance testing and mechanical endurance verification.
Q:Do you offer OEM or private labeling services?
A:
Yes, we provide OEM customization, including brand logo, packaging, and product labeling according to customer requirements.
Send Inquiry
*To:
Yueqing Quansheng Electric Co., Ltd.
Yueqing Quansheng Electric Co., Ltd.*Content:
Supplier replies will be sent to your registered email
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