The SGDH series 200-350Amp strip AC solid state relay is a new type of strip medium power single-phase AC solid state relay produced by Weihai Xingjia Electronic Co., Ltd. It is a single-pole single-throw-normally open type. The input adopts a DC control type. The output end is composed of a single-phase SCR reverse parallel AC switch, which has a high dV/dt and dI/dt withstand capability. The switch type is divided into zero-cross conduction type and random conduction type. In addition, the advanced technology of welding the controllable silicon chip on the ceramic substrate with “vacuum+hydrogen protection” can make the solid state relay achieve the best performance.
The SGDH series solid‑state relays are bar‑type, single‑pole‑single‑throw (normally‑open) devices produced by Xingjia Electronics. They use a DC control input and a single‑phase SCR pair in a parallel configuration, offering high dV/dt and dI/dt capability and supporting both zero‑cross and random turn‑on modes.
Technical data include a blocking voltage above 1200 V for 480 V AC operation, load current ratings from 200 A to 350 A, input control voltage ranges of 4‑16 V DC (or 3‑32 V DC) and 90‑250 V AC, and a minimum dv/dt of 500 V/µs. The relays are recommended to be mounted with an appropriate heat sink and thermal grease. This manual is written in Chinese.
| Blocking voltage (480 V AC) | >1200 V |
|---|---|
| Input control voltage (DC) | 4‑16 V |
| Input control voltage (AC) | 90‑250 V |
The relay accepts a DC control voltage of 4 V to 16 V.
Use an appropriate heat sink and apply thermal grease between the heat sink and the relay.
The blocking voltage is greater than 800 V for 280 V AC.