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3-Phase Undervoltage Control Relay. Wiring Diagram. L1,L2,L3 : Supply to be monitored 11-14,12 : 1st C/O contact of output relay 21-24,22 : 2nd C/O contact of output relay.
Connect to L1, L2, and L3 (for three-phase three-wire mode) or L1, L2, L3, and N (for three-phase four-wire mode), depending on the mode selected using pin 2 on the DIP switch. The Unit will not operate correctly if the DIP switch setting and the wiring do not agree.
Simplified panel design due to 0.89in width same as 2-pole circuit breaker Experience unprecedented accuracy, predictive maintenance, and superior security Provides automatic shutdown management and fault information for a quick fault identification and troubleshooting
• Terminals 3 and 4 are the control signal input terminals. • “Control Mode” is turned ON or OFF in setup. • With “Control Mode” set to ON, there must be a voltage present on terminals 3 and 4 for the relay output terminals 1 and 3 to close; this voltage can be supplied from a thermostat, pressure switch, etc.
ABB’s CM-MPS/N three-phase monitoring relays for rated voltage levels up to 820 V AC and 400 Hz offer maximum flexibility and control. A wide variety of cost-effective three-phase monitoring relays are available with specialized functionality.
New Product. Three-phase Voltage and Phase-sequence Phase-loss Relay. K8DS-PM. Ideal for Monitoring 3-phase Power Supplies for Industrial Facilities and Equipment. Greater resistance to inverter noise. Monitor undervoltages, overvoltages, phase sequence, and phase loss in three-phase three-wire circuits with one unit.
3-Phase Voltage Control Relay Wiring Diagram L1,L2,L3 : Supply to be monitored 11-14,12 : 1st C/O contact of output relay 21-24,22 : 2nd C/O contact of output relay. 7 ... Tt Overvoltage and undervoltage threshold delay (adjustable on front panel from 0.3 to 30 s) H Hysteresis U> Overvoltage threshold U< Undervoltage threshold L1, L2, L3 Phases ...
