DC solid state relays
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DC solid state relays
DC Solid state relay is low impedance which is MOSFET/IGBT output and maximum to avoid total power consumption, suitable for sensitive and inductive load.
Load voltage |
5-80VDC 12-120VDC 12-400VDC 12-600VDC |
Max Load current |
10A 25A 40A 60A 80A 100A 120A |
Isolation bet.In & out |
≧2000VAC |
Isolation to case |
≧2500VAC |
Control voltage |
3.5-32VDC |
Control current |
6-25mA |
Turn-on voltage |
≦1.3VAC |
Frequency range |
47/63Hz |
Status indicator |
LED |
Operating temperature |
-40~80℃ |
Control voltage | Load Voltage | Rated operational current | ||||||
10A | 25A | 40A | 60A | 80A | 100A | 120A | ||
3 to 32 Vdc | 80VDC | GDH1080DD3 | GDH2580DD3 | GDH4080DD3 | GDH6080DD3 | GDH8080DD3 | GDH10080DD3 | GDH12080DD3 |
3 to 32 Vdc | 120VDC | GDH10120DD3 | GDH25120DD3 | GDH40120DD3 | GDH60120DD3 | GDH80120DD3 | GDH100120DD3 | GDH120120DD3 |
3 to 32 Vdc | 250VDC | GDH10250DD3 | GDH25250DD3 | GDH40250DD3 | GDH60250DD3 | GDH80250DD3 | GDH100250DD3 | GDH120250DD3 |
3 to 32 Vdc | 400VDC | GDH10400DD3 | GDH25400DD3 | GDH40400DD3 | GDH60400DD3 | GDH80400DD3 | GDH100400DD3 | GDH120400DD3 |
3 to 32 Vdc | 600VDC | GDH10600DD3 | GDH25600DD3 | GDH40600DD3 | GDH60600DD3 | GDH80600DD3 | GDH100600DD3 | GDH120600DD3 |
A DC Solid State Relay (DC SSR) is an electronic switch used to control DC circuits. It operates through semiconductor devices like MOSFETs, without mechanical parts, resulting in long lifespan, fast response, noiseless operation, and high reliability. Solid state relays are suitable for applications requiring rapid and frequent switching, such as automation control systems, industrial equipment, and heating control, enhancing system efficiency and reducing maintenance costs.
A margin should be left when selecting the voltage and current of the solid state relay. For resistive load: the current is selected according to 2.5~4 times the load current, and the voltage is selected according to 2~2.5 times the load power. Inductive load: current is selected according to 3-7 times load current, voltage is selected according to 2.5-3 times load voltage.
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