Key facts
- Manuals
- 2
- Models
- 1
- Languages
- ZH
- Last added
- 2012-02-10
SGDH models by category
Featured SGDH manuals

SGDH series 200-350Amp capacitor Implement Switching private solid state relay Manual
The SGDH series solid‑state relays are single‑pole‑single‑throw (normally‑open) devices designed for capacitor switching in reactive power compensation equipment. They feature a DC control input, high‑reverse‑voltage SCR parallel structure, and a "zero‑voltage‑difference" conduction method that reduces surge and arc currents during capacitor insertion and removal.
The relays are built with German‑imported high‑reverse‑voltage SCR chips and vacuum‑welded construction, offering high dV/dt and dI/dt capability, up to 1600 V blocking voltage, and rated currents of 200 A, 250 A, or 300 A. Recommended installation includes a suitable heat sink, fast‑acting semiconductor fuse, and thermal grease between the device and heat sink. This manual is written in Chinese.
Covers: Product Overview · Features · Classification and Naming · Selection Guide · Technical Specifications

Xingjia Electronics SGDH Series 200-350Amp Solid State Relay Manual
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.
Covers: Product Overview · Features · Selection Guide · Technical Parameters · General Specifications
Latest SGDH manuals
SGDH series 200-350Amp capacitor Implement Switching private solid state relay Manual
User Manual 2 pages · 84 KB · ZHManual for Xingjia SGDH series 200‑350 A solid‑state relays used for capacitor switching, with specifications and installation guidance.
Xingjia Electronics SGDH Series 200-350Amp Solid State Relay Manual
Datasheet 3 pages · 129 KB · ZHThe manual provides an overview, features, and technical specifications for the Xingjia SGDH series 200‑350 A solid‑state relay.
Which document do I need?
User Manual
Day-to-day operation, settings and troubleshooting. Start here if the product is already set up.
Datasheet
Ratings, dimensions and ordering codes, for selection and design work.
Questions answered in SGDH manuals
What is the recommended control voltage range for the SGDH relay?
The relay operates with a DC control voltage of 4 to 16 V.
From: SGDH series 200-350Amp capacitor Implement Switching private solid state relay Manual
What is the maximum blocking voltage of the SGDH series?
The maximum blocking voltage is 1600 V.
From: SGDH series 200-350Amp capacitor Implement Switching private solid state relay Manual
What control voltage range should be used for DC input?
The relay accepts a DC control voltage of 4 V to 16 V.
From: Xingjia Electronics SGDH Series 200-350Amp Solid State Relay Manual
What is the recommended cooling method for the relay?
Use an appropriate heat sink and apply thermal grease between the heat sink and the relay.
From: Xingjia Electronics SGDH Series 200-350Amp Solid State Relay Manual
