Monitoring relay for monitoring a three-phase connection for asymmetry, phase failure, phase sequence errors as well as overvoltage and undervoltage. With external error acknowledgement. Response delay adjustable Asymmetry adjustable Error memory selectable 7-segment displays Operating voltage 230 V AC / 50 Hz Current consumption less than 15 mA Response delay 0.1 to 9.9 s, adjustable Asymmetry 5% to 20%, adjustable Switching hysteresis 20% Monitoring voltage 3 x 230/400 V AC, 50 Hz Output contact 2 changeover contacts (DPDT) Switching voltage max. 250 V AC/DC Continuous current max. 8 A Mechanical service life 3 x 107 switching cycles Electrical service life 1.5 x 105 switching cycles Dimensions W x H x D 50 x 69.3 x 60 mm Weight 200 g Operating temperature range -5 °C to +55 °C Storage temperature range -20 °C to +70 °C Protection class housing / terminals IP40 / IP20
| Property | Value |
| Overvoltage detection function: | yes |
| Asymmetry detection function: | yes |
| Voltage measuring range: | 400 |
| Min. adjustable response delay time: | 0.1 |
| Max. permissible response delay time: | 9.9 |
| Number of contacts as changeover contacts: | 2 |
| Design of the electrical connection: | Screw connection |
| Width: | 50 |
| Height: | 68 |
| Depth: | 65 |
| With removable terminals: | no |
| Rated control supply voltage Us at AC 50 Hz: | 230 |
| Voltage type for actuation: | AC |
| Phase sequence monitoring function: | yes |
| Phase failure detection function: | yes |
| Undervoltage detection function: | yes |
