The object in the image is a WES BluePower Thyristor Unit, specifically the WOONYOUNG WYU-DG 40 SI model.
Explanation:
Thyristor Unit:
This device is a type of power controller that utilizes thyristors (also known as Silicon Controlled Rectifiers or SCRs) to regulate electrical power and current.
Function:
Thyristor units are commonly used as switches in AC load control applications, such as motor speed controls, lighting dimmers, and heating systems, by precisely controlling the activation time of the mains voltage to the load.
Specifications:
The unit shown is rated for 220VAC, 50/60 Hz, and a maximum current of 40A, indicating its capacity for handling significant power.
Manufacturer:
The unit is manufactured by Woonyoung in Korea under the "WES BluePower" brand.