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High Quality Triple Gwiec AC Compressor 7.5kw Pump Soft Starter for Water
US$100.00-300.00
1 Piece
Product profile
Customization
AvailableApplication
General TransducerOutput Type
TripleModel NO.
R1-PR500-22KWPrinciple of Work
AC to AC Soft StarterSwitch Mode
PAM ControlMain Circuit Type
VoltageVoltage of Power Supply
Low Voltage Variable-Frequency DriveLink of Transformation
AC-AC Variable-Frequency DriveNature of DC Power
Voltage Variable-Frequency DriveFunction
Protect The MotorBrand
GwiecOutput Form
4-20mA DC Analog OutputPhase
Three PhaseColor
GrayProduct Name
Soft StarterPower
22 KwShell Material
All Refractory MaterialCertification
CEWarranty
24 MonthsTransport Package
Export Standard Carton BoxSpecification
7.5 KW-315 KWTrademark
GwiecOrigin
YueqingHS Code
8511409900Production Capacity
5000Key features
Superior Soft Start Technology: Better alternative to star/delta starters, reducing torque transients and mechanical stress.
5 Flexible Start Modes: Includes Ramp Voltage, Current Limit, Snap Action, and Heavy Load modes for various scenarios.
Comprehensive Protection: Features over-voltage, under-current, phase loss, short circuit, and overload protection.
Wide Voltage Compatibility: Supports 220V, 380V, 440V, and 660V input with 50Hz/60Hz frequency options.
24 Months Warranty: Comprehensive 24-month warranty coverage for peace of mind and reliability.
CE Certified Quality: Product holds CE certification ensuring compliance with European safety standards.
Smart Control Functions: Includes auto-restart, error storage, and 4-20mA analog output for monitoring.
Company profile

Business Type: Manufacturer/FactoryExport Year: 2017-07-19Nearest Port: ningboAverage Response Time: ≤11.15hTerms of Payment: LC, T/T, PayPalInternational Commercial Terms(Incoterms): FOB
AI-Powered supplier vetting
SummaryYueqing Greenwich Imp & Exp Co., Ltd. is identified as a China-based manufacturer/factory and limited company located in Zhejiang, with a factory in the Qiligang/Liushi area. The supplier reports ISO 9001 certification, 10 production lines, 6–10 R&D engineers, and 6–10 quality-control staff. Listed production capacities are 90,000 contactors, 210,000 circuit breakers, 30,000 switches, and 60,000 relays. Its product scope centers on electrical components including MCCBs, MCBs, contactors, relays, starters, and circuit breakers. Export activity reportedly began in 2017, with 41%–50% of sales from exports and exports conducted directly or through agents. The records provide limited evidence on after-sales service, financial credibility, innovation, customization, and customer-case depth. Trade records show one transaction associated with a Kazakhstan buyer in February 2025, but monetary figures are omitted.
Supplier typeThe supplier is explicitly classified as a Manufacturer/Factory and Limited Company, with its head office and factory located in Zhejiang, China. However, another record describes the company nature as a trading company, indicating a mixed or potentially inconsistent classification across the available data.
CertificationsThe supplier reports holding ISO 9001 certification for its management systems. This is explicit evidence of a documented quality-management certification, although no certification scope, issuing body, or validity dates are provided.
R&D capabilityThe supplier reports 6–10 years of total R&D-engineer experience, and its company description mentions continuous improvement and innovation. These provide some positive indication of development capability, but no specific patents, proprietary products, R&D projects, or new-product examples are supplied.
Production capacityThe supplier reports 10 production lines, 6–10 quality-control staff, and stated annual capacities of 90,000 contactors, 210,000 circuit breakers, 30,000 switches, and 60,000 relays. The same capacity figures appear consistently across two records, and a physical factory location plus ISO 9001 certification are reported, supporting a positive assessment of production capability.
Product Q&A
Q:What are the main advantages over star/delta starters?
A:
Soft starters reduce start current without introducing damaging torque transients, allowing better control over acceleration and stopping compared to star/delta starters.
Q:What voltage inputs does the soft starter support?
A:
It supports three-phase AC 220V, 380V, 440V, and 660V, with frequencies of 50Hz or 60Hz.
Q:What protection features are included?
A:
It includes voltage loss, undervoltage, overvoltage, over-current, overheating, phase loss, three-phase unbalance, and short circuit protection.
Q:What are the available start modes?
A:
There are 5 modes: Ramp Voltage Start, Current Limit Start, Snap Action + Ramp Voltage, Snap Action + Current Limit, and Heavy Load Strong Shock Start.
Q:What is the warranty period?
A:
The product comes with a 24-month warranty.
Send Inquiry
*To:
Yueqing Greenwich Imp & Exp Co., Ltd.
Yueqing Greenwich Imp & Exp Co., Ltd.*Content:
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