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Integrated Built-In Bypass Soft Starter Compact Design for AC Motors

Intelligent ac motor soft starter is a new type of motor starting equipment designed and produced by using power electronic technology, microprocessor technology and modern control theory. The product can effectively limit the starting current of asynchronous motor, can be widely used in fan, water pump, conveying and compressor load, is the traditional star / triangle conversion, self-coupling, magnetic control and other step-down starting equipment ideal replacement products.

The built-in bypass is to switch to the soft start internal AC operation after the start of the thyristor. Built-in bypass and other soft start switch to AC impedance is small, small heat, save electricity. Compared with ordinary bypass, the advantages of built-in bypass should be smaller size, bronze medal, etc

  • Model Built-in bypass RST
  • Power 5.5KW-320KW

Feature

1.High efficiency & energy saving: Reduce device heating after bypassing, prolong life;
2.High-power adaptation: suitable for industrial motors with high loads and frequent starting and stopping;
3.Flexible maintenance: bypass contactor or soft start module can be serviced separately;
4.Slightly higher cost: need to configure the bypass circuit, the initial investment increases.

Technical Parameters

Power Supply AC 380V (10% ~ +15%), 50Hz/60Hz
Power 5.5KW-320KW
Applicable Motors General mouse cage asynchronous motor
Starting Frequency ≤15 starts per hour (recommended)
Cooling Methods Bypass TYPE: Natural Air Cooling
Installation Wall-Mounted
Protection Rating - IP20 (for ≤55 kW models)
- IP00 (for ≥75 kW models)
Environmental Conditions Altitude: ≤2000 m (derating required above 2000 m)
Ambient Temperature: -25°C ~ +40°C
Compatibility - Mains Power / Self-Powered Stations / Diesel Generator Sets
Bypass Requirements Requires External Bypass Contactor for Bypass-Type Models

Power Overall dimensions (mm) installation weight
KG
H IN D H1 W1
5.5KW–75KW 320 150 170 290 100 6
90KW–110KW 380 260 220 500 230 12
132KW–200KW 600 260 260 500 230 23
250KW–320KW 600 290 260 550 260 32