This relay functions as a mains voltage monitoring relay, helping to provide optimum protection for machinery and equipment from a variety of electrical faults. The relay can be used without auxiliary voltage within the measured voltage range worldwide thanks to a wide voltage range. Typical applications include mobile equipment, e.g. air conditioning compressors, refrigerating containers, building site compressors and cranes, etc.
This relay monitors undervoltage, phase sequence recognition, phase failure detection, phase unbalance, undervoltage detection 3-phase. The relay also has an adjustable open/closed-circuit current principle.
- LCD display for status
- Auto reset
- Removable terminals
| Type |
Mains voltage monitoring relay |
| Contact Configuration |
2CO |
| Depth |
91mm |
| Dimensions |
92 x 22.5 x 91mm |
| External power supply required |
N/A |
| Function overvoltage detection |
false |
| Function under voltage detection |
true |
| Height |
92mm |
| Max. permitted delay-on energization time |
20s |
| Max. permitted off-delay time |
20s |
| Min. adjustable delay-on energization time |
0.1s |
| Min. adjustable off-delay time |
0.1s |
| Number of contacts as change-over contact |
2 |
| Number of contacts as normally closed contact |
0 |
| Number of contacts as normally open contact |
0 |
| Operating Voltage (AC) |
160 to 690V |
| Operating voltage AC 50 Hz |
N/A |
| Operating voltage AC 60 Hz |
N/A |
| Operating voltage DC |
N/A |
| Output Current |
3A |
| Phase failure detection |
true |
| Phase imbalance monitoring |
true |
| Phase sequence monitoring |
true |
| Rated switch current |
N/A |
| Supply voltage AC 50 Hz |
N/A |
| Supply voltage AC 60 Hz |
N/A |
| Supply voltage DC |
N/A |
| Temperature Range |
-25 to +60°C |
| Type of electric connection |
N/A |
| Voltage measuring range |
160 - 690V |
| Voltage type (operating voltage) |
N/A |
| Voltage type (supply voltage) |
AC |
| Width |
22.5mm |
| With detachable clamps |
true |
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