3-phase
asymmetry relay RP31
3-phase
asymmetry relay RP31
| 3-phase monitoring of phase
asymmetry Monitors correct phase sequence Adjustable asymmetry level 5-25 % 1-pole relay output 8 A / 250 V AC AC supply voltages up to 3 x 415 VAC Made in accordance with the CE and EMC regulations |
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| The C-mac module type RP31 meters its own 3-phase
supply voltage, and if the phase sequence is correct and the phase asymmetry
is below the adjusted level, the output relay is activated. The module is suitable for monitoring of motors, since it ensures correct rotation direction and releases in case of a missing phase, also if the motor continues its rotation, provided that the resulting asymmetry is higher than the adjusted limit. To ensure the best possible monitoring, the module must be connected as close to the motor as possible, in this way, the contactor function is also monitored. |
Connection diagram:
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Standard supply
voltages:
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