Shenzhen ZK Electric Technology Co., Ltd.
                                                                                                           
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10 Years
Since 2016
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ZK ST300 55KW Motor Soft Starter 380V/440V with Digital Display and 16 SCM Control

Price Negotiable
Price: USD 520 per unit
MOQ: 1 unit
Delivery Time: 5-10days
Brand: ZK
Product Description
ST300 Series 55KW Motor Soft Starter with Digital Display
Product Overview

The ZK ST300 series soft starter is a high-performance motor protection and control solution designed for industrial applications. This 55KW model operates at 380V/440V/480V with intelligent 16 SCM control and digital display for precise motor management.

Key Features
  • 16 SCM intelligent control with digital display interface
  • Multiple motor control capability from single starter unit
  • Flexible starting modes: Current limiting, Voltage ramp, Kick start combinations, and Voltage-current double closed-loop
  • Adjustable soft stop functionality (0-60 seconds)
  • Comprehensive protection: Over current, overload, phase loss, instant stop, and fault detection
  • Built-in circuit breaker eliminates need for external contactor
  • Optional built-in bypass contactor for 5.5KW-75KW models
Technical Specifications
Parameter Specification
Power Rating 55KW
Operating Voltage 380V / 440V / 480V ±15%
Frequency 50Hz / 60Hz
Motor Type Squirrel cage three-phase asynchronous motor
Cooling Method Natural air cooling
Protection Rating IP20
Operating Temperature 0°C to 40°C
Maximum Altitude 1000 meters
Protection Features
  • Voltage loss, undervoltage, and overvoltage protection
  • Over-current detection during starting and running
  • Thermal overload and overheating protection
  • Starting time monitoring and timeout protection
  • Input/output phase loss detection
  • Three-phase unbalance monitoring
  • Short circuit protection
Note: Built-in bypass contactor is not included by default for 5.5KW-75KW models. Please confirm this requirement when placing your order.
ZK ST300 Series 55KW Motor Soft Starter with digital display and control panel

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Have questions about our products or want to discuss a custom order? Our team is ready to help you.

Company Shenzhen ZK Electric Technology Co., Ltd.
Location Guanlida Building, NO. 269 of Qianjin Road, Xin'an street,Bao'an,Shenzhen,Guangdong,China
Contact Person Huang

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