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.

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.

Motor Controller Soft Starter 250kw 380V Three Phase Online for Industrial Air Compressors

Name: Motor Controller Soft Starter 250kw 380V Three Phase Online for Industrial Air Compressors
Brand: Zhejiang Lingshine Electric CO., Ltd
SKU: 2309813255

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$518.00/piece.Request sample

Product profile

Customization

Available

Task

Adjust

Structure

Closed-Loop

Model NO.

RQ6000-250-Z

Mathematical Model

Linear

Signal

Discrete

Function

Automatic Control, Protection, Monitoring, Measurement, Motor Start Soft Starter

Certification

CCC, ISO: 9001, CE

Condition

New

Customized

Material

Stainless Steel

Type / Category

Online Motor Soft Starter (No Bypass Contactor)

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

Built-in Heat Sink with Cooling Fan

Transport Package

Carton Box/ Pallet

Specification

RQ6000-250KW

Trademark

Lingshine

Origin

China

HS Code

8511409900

Production Capacity

500000PCS/Years

Key features

Closed Loop Control: Provides smooth, stepless voltage regulation without bypass contactor.

Wide Power Range: Supports 5.5KW to 1000KW for diverse industrial motor applications.

Customizable Voltage: Available in 220V, 380V, and 660V to match specific system needs.

Multiple Start Modes: Includes current limiting, voltage ramp, and double closed loop start.

Comprehensive Protection: Features overload, phase loss, overvoltage, and short circuit protection.

RS485 Communication: Enables remote monitoring and control via standard communication protocols.

Efficient Cooling: Built-in heat sink and cooling fan ensure reliable heat dissipation.

Compact Design: Space-saving structure allows flexible installation in control cabinets.

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: ≤0.04h

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 is the lead time for soft starter orders?

Standard models ship within 5 business days. Bulk orders or custom configurations typically take 1-2 weeks depending on quantity.

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.