Technical Information
| Item condition |
New |
| Manufacture name |
PFD2-E12 |
| Brand |
METZ CONNECT
|
| Categories |
Relays
|
| Country of origin |
DE |
| Harmonized System Code |
9030 3320 00
|
| Width |
22.5 mm |
| Height |
75 mm |
| Depth |
100 mm |
| Voltage measuring range |
400 V |
| With detachable clamps |
No |
| Phase sequence monitoring |
Yes |
| Phase failure detection |
Yes |
| Function under voltage detection |
No |
| Function over voltage detection |
No |
| Phase imbalance monitoring |
No |
| Type of electric connection |
Screw connection |
| Number of contacts as change-over contact |
2 |
Packing details
| Packing level 1 |
4250184118176 |
| Packing level 2 |
4250184118176 |
Description
The monitoring relay monitors the correct phase sequence L1-L2-L3 (direction of rotation to the right) and complete failures of individual phase voltages. The phase voltages to be monitored are connected to the terminals L1-L2-L3, the terminals 11, 14 or 21, 24 of the relay output contacts are connected ahead of the field coil of the motor relay. If the phase sequence is correct, the output relay is activated (green LED is on). In case of total failure of a phase, the output relay returns to its neutral position (green LED is off). A special supply voltage is not required for the monitoring relay. Only connect the device to N if the three phases to monitored are connected to N over an electric circuit (e.g. temperature monitoring or similar).