SAMUSCO Co., Ltd. has been developing and manufacturing innovative motor starters since 2010. SAMUSCO’s unique and effective solutions for motor-starting circuits have been successfully applied to numerous industrial and commercial machinery applications worldwide.
SAMUSCO’s ECS224P is an electronic switch with an embedded MCU designed to activate or deactivate a semiconductor device, TRIAC, based on motor-rotation speed and corresponding motor-starting torque.
Single-phase motors are widely used in household and commercial appliances because they can operate on a single-phase power supply. Once the motor has started and reached a certain speed, the starting winding current must be reduced or interrupted by a mechanical voltage relay (motor-starting potential relay).
However, mechanical relays are susceptible to vibration and have the disadvantage of rapidly degrading operating characteristics, such as electrical arcing during operation. This, along with winding loss due to overload, is a major cause of motor repair and replacement.
The ECS224P uses a semiconductor device, TRIAC, in order to suppress electrical arcs and features an enhanced starting compatibility with general-purpose motors through a built-in microprocessor. It also boasts high durability against wear, vibration, and humidity.
Notably, the company’s starting switch utilizes a dynamic principle (patent no. EP2280475B1) that tracks the starting torque relative to the motor speed, detects the maximum torque, and then disconnects the starting winding. Thus, the starting switch ensures compatibility with a wide range of motor designs and high starting efficiency.
The ECS224P is compatible with most single-phase motor designs and offers improved low-voltage starting. It also offers low-noise switching without contact debouncing. Furthermore, the product protects the auxiliary coil and starting capacitor from overload.
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