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Online Soft Starter with Multi-Function Protection 5.5KW 7.5HP 11A 380V

Name: Online Soft Starter with Multi-Function Protection 5.5KW 7.5HP 11A 380V
Brand: Lingshine
SKU: RQ6000-5.5KW
Price: 240.01 USD
Availability: InStock

$240.01 USD

Shipping fees will be calculated at checkout.

Quantity

How to Order from SoftStarterPro? We support both direct online orders for our standard series and custom engineering for specialized projects.

Direct Purchase: Ready to ship or quick delivery available for standard configurations.
Custom Quote: For non-standard specs, cabinets, or bulk project pricing, our engineering team is ready to help.

How to Order from SoftStarterPro? We support both direct online orders for our standard series and custom engineering for specialized projects.

Direct Purchase: Ready to ship or quick delivery available for standard configurations.
Custom Quote: For non-standard specs, cabinets, or bulk project pricing, our engineering team is ready to help.

Product Description

The RQ6000-5.5KW is an intelligent online soft starter with multi-function protection for 380V three-phase induction motors, rated 11A. Built on power electronics and microprocessor control with SCR-based smooth acceleration, it replaces star-delta and auto-transformer starters — no external bypass contactor required, making it the simplest reduced-voltage starting solution to install.

Key Features

3 start modes: Current-limit / Voltage-ramp / Kick-start ramp
2 stop modes: Free stop / Soft stop (prevents water hammer)
Real-time 3-phase current display with independent calibration
Bilingual LCD (Chinese/English), stores last 12 fault records
Dual programmable relay outputs + 4-20mA analog output + RS485 Modbus RTU (standard)
No external bypass contactor needed — simplest wiring among all soft starter types

Applications

Pumps & Fans — smooth start reduces water hammer and belt/duct stress
Conveyors — gentle load engagement, less mechanical shock on belts and gearboxes
Compressors — controlled acceleration protects valves and reduces pressure spikes
Crushers & Mixers — handles high starting torque loads with kick-start ramp mode

Technical Parameters

Parameter	Specification
Model	RQ6000-5.5KW
Rated Power / Current	5.5kW (7.5HP) / 11A
Input Voltage	AC380V ±15%, 50/60Hz
Applicable Motor	Squirrel-cage induction motor
Start Modes	Current-limit (50–600% adj.) / Voltage-ramp / Kick-start ramp
Stop Modes	Free stop / Soft stop
Protection Rating	IP20
Cooling	Forced air (dual fan)
Communication	RS485 Modbus RTU (standard)
Analog Output	4–20mA
Protections	Phase loss, overload, overcurrent, over/under-voltage, 3-phase imbalance, underload, start timeout
Ambient Temp / Altitude	-25°C~+40°C / ≤2000m
Starting Frequency	≤15 starts/hour

Selection Tip

Recommended soft starter power = Motor Power × Load Factor (Pump/Fan: 1.2, Conveyor: 1.3, Compressor: 1.5, Crusher/Mixer: 1.6). Not sure which factor applies? Use our Soft Starter Selection Calculator: https://www.softstarterpro.com/blogs/selection-tools/soft-starter-selection-guide

Can't Find the Exact Model?

Our engineers can customize voltage, current, and configuration for your project.

Request a Custom Quote