RS PRO Phase Monitoring RelaysRS PRO is proud to present a complete range of phase monitoring relays designed for 3 phase systems. Each monitor relay is packed with excellent features to ensure effective protection against all types of low voltage faults. These compact high-quality monitoring devices offer over-voltage and under-voltage protection, protect against voltage phase sequence, phase loss, and phase asymmetry.Key FeaturesPhase Failure Relays Compatible with 3 or 4 wire application Switchable by a dip switch Selectable supply voltage Adjustable under and over voltage set points Selectable ON/OFF time delays LED Indication Compact housing SpecificationsCompact width: 17.5 mm Multi-Voltage: Three Phase 3 Wire @ 208-480 VAC or Three Phase 4 Wire @ 120-277 VAC Can be configured for 3 Phase 3 Wire or 3 Phase 4 Wire system Protection against Phase loss, Phase Sequence, Phase Asymmetry, Under Voltage & Over Voltage Selectable Under Voltage / Over Voltage, Asymmetry and Phase Sequence LED Indication for all Faults & for change in dip switch settings during runtime for better security Adjustable ON/OFF Time Delay in seconds minutes 1 C/O ConfigurationConnectionConnection for supply voltage and relay is illustrated on the side of the device. RS PRO Phase Monitoring Relay Variants208-480 VAC, UV/OV, Phase Loss, Phase Sequence, Phase Asymmetry Monitoring, 1 C/O = RS stock no: (223-7791) 223-7791 415 VAC (3P, 3W) / 240 VAC (3P, 4W), UV/OV, Phase Loss, Selectable Phase Sequence, Phase Asymmetry, 1C/O = RS stock no: (223-7792) 223-7792 415 VAC (3P, 3W) / 240 VAC (3P, 4W), UV/OV, Selectable Phase Sequence & Phase Asymmetry, ON Delay and OFF Delay (in sec/min), 1C/O = RS stock no: (223-7794) 223-7794 415 VAC (3P, 3W), Phase loss Monitoring, 1 C/O = RS stock no: (223-7795) 223-7795ApplicationSwitchgear Control Gear Machine Control Mains Distribution Systems Meer informatie: ![](/p.gif) | ![](/p.gif) | Monitoring Application: | Phase | Electrical Phase: | 3 | Contact Configuration: | SPDT | Voltage Sensitivity: | Overvoltage Protection, Undervoltage Protection | Mounting Type: | DIN Rail | Dimensions: | 17.5 x 90 x 66.5mm | Length: | 66.5mm | Maximum Operating Temperature: | +60°C | Minimum Operating Temperature: | -20°C | Operating Temperature Range: | -20 → +60°C | Terminal Type: | Screw | Width: | 90mm |
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