PF; F&F
| Mounting | for DIN rail mounting |
| Power supply | from tested wiring system |
| Leads | screw terminals |
| IP rating | IP20 |
| Trade name | automatic phase switch |
| Max. operating current | 16A |
| Additional functions | LED status indicator |
| Manufacturer | F&F |
| Operating temperature | -25...50°C |
| Manufacturer series | PF |
| Type of automation module | voltage monitoring relay |
| Symbol | Control. param. | Usup | Uout | True effective value measurement |
|---|---|---|---|---|
| [V AC] | [V AC] | |||
| PF-431 | undervoltage, phase failure | 3 x 230 | 230 | - |
| PF-441 | undervoltage, overvoltage, phase failure | 3 x 230 | 230 | - |
| PF-451 | undervoltage, overvoltage, phase failure | 3 x 230 | 230 | - |
| PF-452 | undervoltage, overvoltage, phase failure | 3 x 50...450 | 230/230/400 | - |
| PF-421-TRMS | undervoltage, overvoltage, phase failure | 3 x 230 | - | True RMS |
| PF-432-TRMS | undervoltage, overvoltage, phase failure | 3 x 230 | - | True RMS |
| PF-433-TRMS | undervoltage, overvoltage, phase failure | 3 x 230 | - | True RMS |
| PF-434-TRMS | undervoltage, overvoltage, phase failure | 3 x 230 | - | True RMS |
| PF-435-TRMS | undervoltage, overvoltage, phase failure | 3 x 230 | - | True RMS |
