China MCR8 Series Digital Motor Soft Starter Suppliers, Company

Product Overview

Soft starters integrate motor soft start, soft stop, and advanced protection functions within a single motor control unit. The core component connects to the power supply via three reverse-parallel thyristors combined with an electronic control circuit. By regulating the conduction angle of the inverse-parallel thyristors, the unit adjusts the motor input voltage according to application demands to accomplish versatile operational functions.

A soft starter and a frequency converter serve entirely different purposes. A frequency converter is engineered for speed adjustment demands by concurrently altering voltage and output frequency. In contrast, a soft starter acts as a voltage regulator strictly for motor acceleration and deceleration; the output voltage frequency remains unchanged. While converters provide soft-starting features, they are significantly more complex and costly. A soft starter is wired between the power source and the motor, steadily raising input voltage from zero to preset levels until standard operating voltage is achieved, allowing motor torque and speed to rise smoothly.

Product Introduction

Soft starters are categorized into three main configurations:

• 1. External bypass AC contactor system (MCR8 series)
• 2. Built-in (BYO) bypass on-line equipment unit
• 3. Online soft starting cabinet

Product Display

Routine Maintenance

Product Performance