| PLC Model | Size (mm) | Inputs | Relay Outputs | Transistor Outputs | AD/DA | High-Speed Inputs | High-Speed Outputs |
|---|---|---|---|---|---|---|---|
| ZK3U-24MR | 150*100*30 | 12 | 12 | / | 6/2 | 2 | / |
| ZK3U-24MT | 150*100*30 | 12 | / | 12 | 6/2 | 2 | 4 |
| ZK3U-24MRT | 150*100*30 | 12 | 8 | 4 | 6/2 | 2 | 4 |
| ZK3U-32MR | 180*100*30 | 16 | 16 | / | 10/2 | 2 | / |
| ZK3U-32MT | 180*100*30 | 16 | / | 16 | 10/2 | 2 | 8 |
| ZK3U-32MRT | 180*100*30 | 16 | 12 | 4 | 10/2 | 2 | 4 |
| ZK3U-32MR Shell | 180*100*55 | 16 | 16 | / | 10/2 | 2 | / |
| ZK3U-32MT Shell | 180*100*55 | 16 | / | 16 | 10/2 | 2 | 8 |
| ZK3U-32MRT Shell | 180*100*55 | 16 | 12 | 4 | 10/2 | 2 | 4 |
| ZK3U-48MR | 190*109*30 | 24 | 24 | / | 10/2 | 2 | / |
| ZK3U-48MT | 190*109*30 | 24 | / | 24 | 10/2 | 2 | 8 |
| ZK3U-48MRT | 190*109*30 | 24 | 20 | 4 | 10/2 | 2 | 4 |
| ZK3U-64MR | 250*109*30 | 32 | 32 | / | 10/2 | 2 | / |
| ZK3U-64MT | 250*109*30 | 32 | / | 32 | 10/2 | 2 | 8 |
| ZK3U-64MRT | 250*109*30 | 32 | 28 | 4 | 10/2 | 2 | 4 |