Product overview

The single three-phase rectifier solid-state relay uses high-power thyristors and rectifiers to form a rectifier circuit. The weak current part and the strong current part are optically isolated, which can convert AC into DC output with smaller weak current signal. The control signal can be interfaced with switching power supply, microcomputer and TTL logic. The product is widely used in electrolysis, electroplating, electromagnetic vibration, DC power supply, DC Motors and other equipment realize contactless switch control.

Features

1. Optical isolation between weak current part and strong current part

2. Control signal and TTL logic interface

3. The strong electric control switch is composed of thyristor and rectifier

4. LED indicates working status

5. Widely used in electrolysis, electroplating, electromagnetic vibration, electromagnetic magnets, DC power supplies, DC motors and other equipment for non-contact switch control

Model meaning

Technical Parameters

temperature graph

Overall dimensions and wiring diagram

Module selection and precautions

1. Depending on the load power, different current margins should be selected. The greater the power, the greater the current margin. Generally, the current capacity of the rectifier solid-state relay is 2-4 times the load current.

2. The input and output terminals should be equipped with overvoltage and overcurrent protection measures. a. Overvoltage protection: The output end is connected in parallel with a freewheeling diode or varistor (when using 240V voltage, choose 470-500V, when using 440V voltage, choose 680-750V, when using 660V voltage, choose 1100-1200V) ; b. Overcurrent protection: The main circuit is connected in series with a quick disconnect switch or a quick fuse, and the value is 1.5 times the actual load current.

3. Heat dissipation requirements: Depending on the current size, working mode, and environmental conditions of the selected rectifier solid-state relay, a corresponding equivalent radiator should be configured, and a fan or water cooling should be used for temperatures above 40A.

4. Installation method: It is required that the contact between the product and the radiator must be flat and smooth, and a layer of thermally conductive silicone grease should be applied between the contact surfaces. Finally, the screws with flat washers and spring rings should be symmetrically tightened and fixed.