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Solid-state Relays
No-contact relays that semiconductor is utilized, which enables high-speed and high-frequency operation. OMRON provides Solid-state Relay for enormous range of applications.
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| Principles | Classifications |
| Engineering Data |
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SSR Internal Circuit Configuration Examples
| Load specifications | Zero cross function | Isolation | Circuit configuration | Model |
| AC load | Yes (See note 1.) | Photo- coupler |  | G3H G3B G3F G3NA (AC input) |
| No | Phototriac |  | G3NE G3J G3F G3H G3TA-OA | |
| Yes (See note 1.) | Phototriac |  | G3PA-VD G3PB (single phase) G3NA (DC input) G3NE | |
| Yes (See note 1.) | Phototriac |  | G3PB-2(N) (three phases) (See note 2.) | |
| Yes (See note 1.) | Phototriac |  | G3PB-3(N) (three phases) (See note 2.) | |
| Yes (See note 1.) | Photo- coupler |  | G3NA-4[][]B G3NH G3PA-4[][]B G3PB-5[][]B | |
| DC load | --- | Photo- coupler |  | G3FD, G3HD-X03 G3BD G3TA-OD G3NA-D |
| Photo- diode coupler |  | G3HD-202SN | ||
| AC/DC load | No | Photo- diode coupler |  | G3FM |
Note:
1.The zero cross function turns ON the SSR when the AC load voltage is 0 V or close to 0 V. SSRs with the zero cross function are effective in the following ways.
・ Clicking noise when a load is turned ON is reduced.
・ Effects on the power supply are reduced by suppressing inrush current with loads, such as lamps, heaters, and motors, thereby reducing inrush current protection circuits.
2. For 200-V models, use a triac on the output switching elements.
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