OPIS PRODUKTU
SCHNEIDER ELECTRIC RM4UA33MW - Phase Control Relay
The SCHNEIDER ELECTRIC RM4UA33MW is a Zelio RM4-U series modular phase control relay engineered for continuous monitoring of three-phase electrical supplies. This device provides essential protection by detecting phase sequence errors and complete phase loss, thereby ensuring the operational integrity and longevity of connected industrial machinery. It integrates into control circuits to safeguard motors, pumps, and other sensitive equipment from damage resulting from incorrect power conditions.
Technical Specifications:
- SERIES/FAMILY: Zelio RM4-U
- COMPONENT TYPE: Phase Monitoring Relay
- ELECTRICAL SPECS:
- NOMINAL VOLTAGE: 3-phase, 208-480VAC (auto-ranging)
- MONITORING FUNCTION: Phase sequence, Phase loss
- OUTPUT CONTACTS: 2 C/O (Changeover)
- RATED OPERATIONAL CURRENT (OUTPUT): 5 A AC-15, 0.5 A DC-13
- SUPPLY FREQUENCY: 50/60 Hz
- MECHANICAL/PHYSICAL:
- FORM FACTOR: Modular
- MOUNTING: DIN Rail
- WIDTH: 22.5 mm
- INTERFACE/CONTROL:
- INDICATORS: LED status for phase presence and fault conditions
- ADJUSTMENTS: Not applicable for basic phase sequence and loss detection
- ENVIRONMENTAL/MOUNTING:
- IP RATING: IP20 (Terminals), IP30 (Front Face)
- OPERATING TEMPERATURE: -20 to 50 °C
- STORAGE TEMPERATURE: -40 to 70 °C
- POLLUTION DEGREE: 3 (IEC 60664-1)
- COMPATIBILITY/APPLICATION:
- TARGET SYSTEMS: Motor control circuits, HVAC systems, pumping stations, critical power distribution panels, industrial machinery
- FUNCTION: Protection against incorrect phase rotation, phase imbalance, and supply interruption in three-phase systems
