How do you ensure product quality?

Every soft starter goes through full assembly inspection and electrical testing before packing. We are ISO 9001 certified and monitor quality at every stage of production.

What is the difference between an online soft starter and a bypass soft starter?

An online soft starter keeps the SCR thyristors in circuit during normal operation. A bypass soft starter switches to an internal bypass contactor once the motor reaches full speed, eliminating thyristor heat loss and making it more suitable for continuous long-duration operation.

Can your soft starters be controlled by PLC?

Yes. Our soft starters support external terminal control and Modbus RTU communication, allowing full integration with PLC systems for remote start, stop, and fault monitoring.

Why choose your soft starters over other brands?

Our soft starters are CE and CCC certified, factory-tested before shipment, and backed by a 12-month warranty. We offer competitive pricing, stock availability, and direct technical support. Contact us with your motor specs and we will recommend the right model within 24 hours.

450kw-380V Bypass Type Soft Starter for Wastewater Treatment Applications

Name: 450kw-380V Bypass Type Soft Starter for Wastewater Treatment Applications
Brand: Zhejiang Lingshine Electric CO., Ltd
SKU: 2320896785

Zhejiang, ChinaZhejiang Lingshine Electric CO., Ltd

US$428.00

1-49 Pieces

US$423.00

50-99 Pieces

US$418.00

100+ Pieces

Sample price:US$428.00/piece.Request sample

Product profile

Customization

Available

Task

Adjust

Structure

Closed-Loop

Model NO.

RQ900-450KW

Mathematical Model

Linear

Signal

Discrete

Function

Automatic Control, Protection, Monitoring, Measurement, Rq900 Bypass Soft Starter

Certification

CCC, ISO: 9001, CE

Condition

New

Customized

Material

Aluminum Alloy

Type / Category

Bypass Motor Soft Starter (Requires External Bypa

Rated Voltage

380V (Customizable for 220V / 660V)

Power Range

5.5kw to 1000kw

Frequency

50/60Hz

Adaptive Motor

Squirrel-Cage Three Phase Asynchronous Motor

Start Mode

Current Limiting Start, Voltage Ramp Start

Communication

RS485

Protection Class

IP20

Cooling Method

Natural Heat Sink Cooling, Reduced Heat Load Afte

Transport Package

Carton Box/ Pallet

Specification

450KW Bypass Soft Starter

Trademark

Aigoodele

Origin

China

HS Code

8511409900

Production Capacity

500000PCS/Years

Key features

Bypass Design for Continuous Operation: Once the motor reaches full speed, an external bypass contactor takes over, removing the SCRs from the circuit and eliminating thyristor heat loss during normal

Wide Power Range: Covers 5.5kW to 630kW, suitable for light to heavy industrial motor applications including pumps, fans, compressors, and conveyor systems.

Six Starting Modes: Current limit start, voltage ramp start, sudden jump current limit start, sudden jump voltage ramp start, jog start, and swing start - select the right mode for your load type and

Soft Stop Function: Adjustable soft stop time from 0s to 60s reduces water hammer effect in pump systems and mechanical shock in conveyor and fan applications.

Flexible Control Interface: Supports keypad, external terminal, and Modbus RTU communication control - integrates directly with PLC systems for remote start, stop, and fault monitoring.

Comprehensive Motor Protection: Overcurrent, undercurrent, phase imbalance, overvoltage, undervoltage, input/output phase loss, phase sequence, and overheat protection - all configurable via parameter

Wide Voltage Compatibility: Default supply voltage 380V. Custom voltage options available including 220V, 440V, 480V, and 660V to suit different regional power supply standards.

High Start Cycle Rate: Supports up to 12 starts per hour, suitable for applications with frequent restart requirements.

ISO 9001 Certified Manufacturing: Every unit undergoes 100% assembly inspection and electrical testing before shipment - consistent quality across single and bulk orders.

OEM/ODM Available: Custom voltage ratings, enclosure configurations, and branding supported. MOQ from 1 unit. Tracking number provided within 5 business days of order confirmation.

Company profile

In-stock CapacityODM ServicesOEM ServicesQuality Assurance

Zhejiang Lingshine Electric CO., Ltd

Zhejiang, China

CertifiedBusiness Type: Manufacturer/Factory & Trading Company CertifiedR&D Capacity: ODM Service Available & OEM Service Available CertifiedCustomization Options: Customization from Samples, Customization from Designs, etc. CertifiedExport Year: 1 year CertifiedNearest Port: Ningbo PortAverage Response Time: ≤0.06h

AI-Powered supplier vetting

SummaryZhejiang Lingshine Electric Co., Ltd. is a high-tech manufacturer and integrated production, sales, and service enterprise focused on power semiconductor and industrial control products. It reports CE and CCC certifications, OEM and ODM services, broad customization options, documented finished-product inspection instructions, and stated annual capacities across several product categories. Its R&D team has four engineers and uses AutoCAD, but there are no available R&D audit documents, no new products reported in the past year, no 3D design or SDK support, and limited evidence of formal service-management controls. The supplier has no overseas warehouses, showrooms, agents or branches, and has not participated in offline trade shows. No Fortune 500 customer cooperation or repeat-buyer preference is reported, so customer-case strength is not demonstrated.

Supplier typeThe supplier describes itself as a high-tech enterprise integrating production, sales, and service, with products including power SCRs, frequency converters, soft starters, solid-state relays, voltage regulators, and high-power rectifiers. This supports classification as a manufacturer and integrated industrial-electronics supplier.

CertificationsThe supplier reports CE and CCC product compliance certifications, and the same certifications are identified for sustainable development and product certification capability. This is explicit evidence of holding relevant certifications, although the provided information does not specify product scope or validity details.

After-Sales capabilityR&D responsibilities include technical support for after-sales service, but service-capability procedures are incomplete: written assessment procedures have no records, corrective and preventive action procedures are absent, and complaint-handling procedures or records are absent. The supplier also lacks overseas service infrastructure, including warehouses, showrooms, agents, and branches.

Production capacityThe supplier reports annual capacities of 12,000 soft starters, 100,000 solid-state relays, 100,000 rectifier bridges, and 10,000 power SCR regulators. It also states that finished-product inspection instructions exist and are uniformly followed, supporting established production and inspection capability.

Customization capabilityThe supplier explicitly offers full customization, customization from designs and samples, minor customization, flexible customization, and ODM services. These statements directly support broad customization capability, although the absence of 3D software design services may limit certain design workflows.

Product Q&A

Q:Can you provide a price list and catalog for soft starters?

Yes, we are happy to share our soft starter price list and product catalog. Please send us an inquiry through this page and we will respond within 24 hours.

Q:Can I get a sample before placing a bulk order?

Yes, samples are available for quality testing before placing a bulk order. Sample fee and shipping cost apply.

Q:What payment terms do you accept?

We accept T/T, PayPal, WorldFirst, and Credit Card.

Q:Do you have soft starters in stock?

Standard online and bypass models from 5.5kW to 630kW are kept in stock and ready to ship. Special voltage or current ratings will be produced upon order confirmation.

Q:How do you ship soft starter orders?

Small orders ship via DHL, UPS, FedEx, or Yuntu. Bulk orders are shipped by sea freight. We select the best option based on your location and quantity.