Network control and protection

Network control and protection Control relays Modern industry is characterised by automated continuous production process that must be under control in order to avoid high costs associated to irregular operation and unexpected stops. Employing control relays on industrial installations will permit monitoring network supply and prevent potential breakdowns. Machinery maintenance will be supported by anticipatory protection. General characteristics  Firmware Direct setting Frontal direct setting and reading of measurement thresholds and time delays. On product information Wiring and relay characteristics...

Control relays low voltage electrical manufacturer Phase Control Aimed to protect motors where phase sequence is specially relevant (lifts, cranes, escalators,..) or phase failure can be specially damaging. References RF011 RF01 RF01A Current and temperature monitoring Monitoring currents and temperature on mechanical loads such as motors, pumps and resistors increase protection on applications such as pumping, ventilation, lifts and conveyors. References RC RTM Applications • Motors • Moving equipment (cranes, lifts, escalators, conveyors) • Refrigration Voltage Monitoring Industrial process...

Network control and protection Phase control RF011 Phase Failure and Phase Sequence Relay Voltage monitoring relay for three phase supply. Protects against Phase Failure (loss) and Phase Sequence. • Mounting on symmetrical DIN rail • Connects when detecting: 3 phases correct phase sequence RST presence • Trips when detecting: phase failure incorrect phase sequence • Phase failure is considered when nominal voltage is < 85% to operating nominal voltages between phases. • Output changeover relay 5A / 250V AC cos 9 = 1 • Operating temperature: -10° to + 60°C

low voltage electrical manufacturer Control relays RF01 Phase Failure and Phase Sequence Relay Voltage monitoring relay for three phase supply. Protects against Phase Failure (loss) and Phase Sequence. • Mounting on symmetrical DIN rail • Connects when detecting: 3 phases presence correct phase sequence RST presence • Trips when detecting: voltage drop > 25% incorrect phase sequence • Phase failure is considered when nominal voltage is < 75% rated • Output changeover relay 8A / 250V AC cos 9 = 1 • Operating temperature: -10° to + 60°C

Network control and protection RF01A Adjustable Phase Failure and Phase Sequence Relay Electronic relay for three phase supply monitoring and protecting against disturbances on the main supply. Protection against Phase Failure (loss) and Phase Sequence. Undervoltage adjustable. • Mounting on symmetrical DIN rail • Adjustable phase failure tripping • Connects when detecting: 3 phases correct phase sequence RST presence • Trips when detecting: voltage drop under the preset voltage incorrect phase sequence • Detection of phase failure under preset value RF01A-230: adjustable from 150V to 250V RF01A-400:...

low voltage electrical manufacturer Control relays RF-UT Fixed Undervoltage Relay Electronic relay for single phase or three phase supply voltage control and protecting against disturbance on the main supply. Protection against undevoltage at a fixed voltage. Restart time delay to protect motors against abrupt restarts. • Compact size width 1 module (17,5 mm) • 1 output changeover contact • Breaking capacity: 8A / 250V AC cos 9 =1 • Mounting on symmetrical DIN rail • Energising after time delay when supply voltage >75% Un • Restart time delay adjustable 5 -15 min

Network control and protection Phase control RF02 Phase Failure, Sequence and Voltage monitoring Relay Electronic relay for three phase supply monitoring and protecting against disturbances on the main supply. Protection against Phase Failure (loss), Phase Sequence and Over/under voltage. • Mounting on symmetrical DIN rail • Connects when detecting: 3 phases within the set voltage correct phase sequence RST presence • Trips when detecting: phase failure, incorrect phase sequence, voltage variations • Adjustable threshold (5 to 20%) for voltage variations (from 0,1 to 10 seconds) • Output changeover...

low voltage electrical manufacturer Control relays RF02N Phase Sequence, Phase + Neutral Failure and Voltage monitoring Relay Detects an incorrect phase sequence. Detects a failure on any phase. Detects phase voltage variation • Mounting on symmetrical DIN rail • Connects when detecting: 3 phases phase sequence RST+N is correct • Trips when detecting either a phase failure, phase/neutral voltage variations (adjustable threshold ±5 to ±20 %) or an incorrect phase sequence. • Tripping time, for voltage variations, adjustable from: 0,1 to 10 seconds. • Tripping time for an incorrect phase sequence...

Network control and protection Phase control RF03 Phase Failure, Sequence and Unbalance Relay Electronic relay for three phase supply monitoring and protecting against disturbances on the main supply. Protection against Phase Failure (loss), Phase Sequence and Phase Unbalance. • Mounting on symmetrical DIN rail • Connects when detecting: 3 phases within the set voltage correct phase sequence RST presence • Trips when detecting: phase failure, incorrect phase sequence, phase unbalance • Tripping time delay adjustable against short time voltage variations • Phase unbalance adjustable threshold...

low voltage electrical manufacturer Control relays RF03N Phase Failure, Sequence and Unbalance Relay Detects an incorrect phase sequence Detects a failure on any phase Detects phase unbalance • Connects when detecting: 3 phases phase sequence RST+N is correct • Trips when detecting phase failure, a phase unbalance (adjustable threshold 5 to 15 %) or an incorrect phase sequence • Tripping time, for voltage variations, adjustable from: 0,1 to 10 seconds. • Tripping time for an incorrect phase sequence or phase failure: 0,1 sec. • Output: change over relay • Phase failure is considered when...