How does the soft starter benefit pump applications?

It reduces hydraulic shocks in pipelines, minimizes mechanical stress on the motor shaft, reduces starting current, and prevents damage from blocked pipes or reverse rotation.

What is the warranty period for this product?

The product comes with a 24-month warranty.

Wenzhou Zhejiang, Gwiec Single Phase AC Pump Soft Starter

Name: Wenzhou Zhejiang, Gwiec Single Phase AC Pump Soft Starter
Brand: Yueqing Greenwich Imp & Exp Co., Ltd.
SKU: 2071914565

Zhejiang, ChinaYueqing Greenwich Imp & Exp Co., Ltd.

US$100.00-300.00

1 Piece

Product profile

Customization

Available

Application

General Transducer

Output Type

Triple

Model NO.

R1-PR800-7.5KW

Principle of Work

AC to AC Soft Starter

Switch Mode

PAM Control

Main Circuit Type

Voltage

Voltage of Power Supply

Low Voltage Variable-Frequency Drive

Link of Transformation

AC-AC Variable-Frequency Drive

Nature of DC Power

Voltage Variable-Frequency Drive

Function

Protect The Motor

Brand

Gwiec

Output Form

4-20mA DC Analog Output

Phase

Three Phase

Color

Gray

Product Name

Soft Starter

Power

7.5 Kw

Shell Material

All Refractory Material

Certification

Warranty

24 Months

Transport Package

Export Standard Carton Box

Specification

7.5 KW-315 KW

Trademark

Gwiec

Origin

Yueqing

HS Code

8511409900

Production Capacity

5000

Key features

Superior Soft Start Technology: Better alternative to star/delta starters, reducing torque transients and start current effectively.

Comprehensive Motor Protection: Protects against voltage loss, over-current, overheating, phase loss, unbalance, and short circuits.

5 Flexible Start Modes: Includes Ramp Voltage, Current Limit, Snap Action, and Heavy Load modes for diverse applications.

Pump & Fan Optimization: Reduces hydraulic shocks, mechanical stress, and starting current for pumps and fans.

Wide Voltage Compatibility: Supports 220V/380V/440V/660V input, suitable for three-phase squirrel cage motors.

Advanced Control Features: Features auto-restart, error storage, analog output, and multi-display for precise monitoring.

CE Certified Quality: Product holds CE certification ensuring compliance with international safety standards.

Company profile

Yueqing Greenwich Imp & Exp Co., Ltd.

Zhejiang, China

Business Type: Manufacturer/FactoryExport Year: 2017-07-19Nearest Port: ningboAverage Response Time: ≤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?

Soft starters reduce start current without introducing damaging torque transients, unlike star/delta starters which may fail to accelerate loads or control voltage ramp-down.

Q:What protection functions does the soft starter offer?

It provides protection against voltage loss, undervoltage, overvoltage, over-current, overheating, starting over time, phase losses, three-phase unbalance, and short circuits.

Q:What are the available start modes?

There are five modes: Ramp voltage start, Current limit start, Snap action + Ramp voltage start, Snap action + Current limit start, and Heavy load strong shock start.

Q:What are the suitable power supply and motor specifications?

Input is three-phase AC 220/380V/440/660V, 50/60Hz. It is suitable for three-phase squirrel cage induction motors with rated frequency matching the soft starter.

Q:What optional functions are available?

Optional functions include start delay, running delay, starting interval delay, over-heat unlock delay, error message storage, auto restart, DC analog output, and multi-display.