This document describes the features and characteristics of the D series solid-state relays produced by Shenyang Bestall Electronic Equipment Research Institute. They are mainly used for DC level conversion, isolation, and control, and are widely used in the field of industrial automation.
The D series solid-state relay from BESTMALL is a DC input/output device used for level conversion, isolation, and control in industrial automation, such as lighting, small DC motors, power supplies, electromagnetic devices, and smart instruments. It is suitable for harsh environments like corrosion, humidity, and explosion‑proof settings.
The manual details technical parameters, mounting style (straight‑insert PCB), and recommended operating conditions, including heat‑sink installation for continuous rated current, de‑rating in high ambient temperatures, and limits on surge currents for capacitive loads and instantaneous over‑voltage for inductive loads. This manual is written in Chinese.
| Control Voltage | 3‑14 V |
|---|
It is designed for straight‑insert PCB mounting.
A heat sink should be installed, and in high ambient temperatures the relay should be de‑rated; surge current must be limited for capacitive loads and instantaneous over‑voltage for inductive loads.