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Soft Start Cabinet

Soft start cabinets integrate a motor soft starter, protection devices, and control components in a pre-wired, ready-to-install enclosure. Designed for 3-phase motors from 5.5kW to 1000kW, these cabinets eliminate the need for separate wiring and component sourcing — reducing installation time and ensuring reliable motor startup, protection, and monitoring in a single unit.

Standard configuration uses an online soft starter. Bypass and built-in contactor versions available on request. Custom voltage, power rating, enclosure grade, and communication options available for OEM and project requirements.

Key Features

  • Pre-wired and ready to install — All components factory-assembled and tested, reducing on-site installation time and wiring errors.
  • Smooth start and stop — Reduces inrush current and mechanical shock on motors, pumps, fans, and conveyor systems.
  • Comprehensive motor protection — Overload, overcurrent, overvoltage, undervoltage, phase failure, and overheat protection built in.
  • RS-485 communication — Supports remote monitoring and integration with SCADA and PLC systems.
  • Floor-standing enclosure — Standard cold-rolled steel cabinet (IP20). Stainless steel and wall-mount versions available on request.
  • Custom configurations — Power rating, voltage, bypass option, enclosure grade, and branding customizable for OEM and project requirements.

Applications

  • Water pumps and booster systems
  • Fans and blowers
  • Conveyor systems and heavy machinery
  • Water treatment and sewage systems
  • HVAC systems
  • Mining and industrial equipment

Technical Parameters

Parameter Specification
Input Voltage 220V / 380V / 440V / 480V / 660V / 690V (Three-phase)
Rated Power 5.5kW – 1000kW
Start Method Soft start / Soft stop (online type standard)
Start Time Adjustable 0–30s
Ambient Temperature -20°C to +60°C
Protection Features Overload, overcurrent, overvoltage, undervoltage, phase failure, overheat
Control Options Local switch (R1) / Remote start (R2)
Communication RS-485
Enclosure Material Cold-rolled steel (standard) / Stainless steel (custom)
Protection Grade IP20 (standard) / Higher grade available on request
Installation Floor-standing (standard) / Wall-mount (custom)
Soft Starter Type Online (standard) / Bypass / Built-in (custom)
Customization OEM configurations available
Download User Manual

Available Models (5.5 kW – 1000 kW)

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SoftStarterPro

Founded in 2015, We focus on designing and producing soft starters, variable frequency drives, SCR power controllers, and power modules with stable quality and fast delivery. With factory-direct service and years of engineering experience, we provide customers with efficient and cost-effective power control solutions.

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Ann | +86 18006697926 (WhatsApp / WeChat) Email: ann@softstarterpro.com Address: Dongan Industrial Zone, Liushi Town, Wenzhou, Zhejiang, China, 325600

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