This voltage monitoring relay monitors a phase for exceedance or undershoot of the set limit value. You can choose between exceedance, undershoot and exceedance and undershoot in window mode. An error memory is optionally available, which holds the error message until a reset. Two relay changeover switches are available for reporting, which can be loaded up to 8 A. The mode of operation, the limit value, the switching hysteresis and a drop-out delay can be set. The settings are made using control elements on the front, which can be protected against changes under a transparent cover. With an illuminated scale arrow, the setting of the potentiometer can be seen very clearly even from a distance. The diagnostic switch on the front enables the output relays to be switched off to test the entire application. When the transparent cover is closed, the diagnostic switch is automatically reset. The wide-voltage power supply enables universal use. Two LEDs show the status. The overall width is 22.5 mm and it is mounted on the top hat rail. The cable is connected via screw terminals.
| Property | Value |
| Number of contacts as normally open: | 2 |
| Type of voltage for actuation: | AC/DC |
| Response value voltage: | 264 V |
| Max. permissible response delay time: | 1 s |
| Number of contacts as normally closed contacts: | 2 |
| Number of contacts as changeover contacts: | 2 |
| Design of the electrical connection: | Screw connection |
| Max. permissible release delay time: | 30 s |
| Width: | 22 mm |
| Height: | 90 mm |
| Depth: | 73 mm |
| Voltage measuring range 1: | 100 V |
| Rated control supply voltage Us at AC 50 Hz: | 240 V |
| With removable terminals: | no |
| 1-phase undervoltage possible: | yes |
| 3-phase undervoltage possible: | no |
| 1-phase overvoltage possible: | yes |
| 3-phase overvoltage possible: | no |
| 1-phase window possible: | yes |
| 3-phase window possible: | no |
| Contains DC undervoltage function: | yes |
| Contains DC overvoltage function: | yes |
| Contains DC voltage window function: | yes |
| Voltage type of measuring range: | AC/DC |
| Rated control supply voltage Us at AC 60 Hz: | 240 V |
| Rated control supply voltage Us at DC: | 240 V |
