| Manufacturer | OMRON |
| Controlled parameter | phase asymmetry, phase sequence, phase failure |
| Mounting | for DIN rail mounting |
| Leads | screw terminals |
| Power supply | from tested wiring system |
| Kind of output 1 | SPDT |
| Contact actuation delay | 0.1...30s |
| Body dimensions | 22x90x100mm |
| Operating temperature | -20...60°C |
| IP rating | IP20 |
| Manufacturer series | K8AK-PA |
| Type of automation module | voltage monitoring relay |