Schneider Electric - RM35TF30 - Harmony 3-Phase Supply Control Relay, 220–480 V
The Schneider Electric RM35TF30 is a Harmony series multifunction control relay designed to monitor 3-phase power supplies. It ensures the proper sequence of phases (L1, L2, L3) and detects phase failures, phase imbalances, and voltage anomalies within a range of 220 to 480 V AC. This relay is essential for safeguarding equipment by providing automatic shutdown management and fault information, facilitating quick fault identification and troubleshooting.
Key Features:
• Phase Monitoring: Detects incorrect phase sequences, phase failures, and phase imbalances to protect 3-phase systems.
• Voltage Surveillance: Monitors undervoltage and overvoltage conditions in window mode, ensuring voltage levels remain within specified thresholds.
• Adjustable Time Delay: Features an adjustable time delay ranging from 0.1 to 10 seconds (±10% of the full-scale value) to accommodate various application requirements.
• Compact Design: With a width of 35 mm (1.38 inches), it simplifies panel design and is compatible with standard 3-pole circuit breakers.
Technical Specifications:
• Model Number: RM35TF30
• Supply Voltage Range: 220 to 480 V AC (phase-to-phase)
• Voltage Detection Threshold: Below 194 V
• Control Circuit Frequency: 50/60 Hz (±10%)
• Output Contacts: 2 Changeover (DPDT) contacts
• Maximum Switching Voltage: 250 V AC/DC
• Maximum Switching Current: 5 A AC/DC
• Power Consumption: Up to 22 VA at 400 V AC, 50 Hz
• Mounting: 35 mm symmetrical DIN rail (EN/IEC 60715)
• Dimensions: Width: 35 mm (1.38 inches)
• Certifications: CE, UL, CSA, GL, GOST, C-Tick
Applications:
• Industrial Automation: Ensures the correct phase sequence and voltage levels in automated machinery and equipment.
• Pumping Systems: Protects pumps from damage due to phase loss or imbalance.
• HVAC Systems: Monitors and safeguards heating, ventilation, and air conditioning equipment against phase-related issues.
• Elevators and Lifts: Ensures safe operation by monitoring the 3-phase power supply for proper sequencing and voltage stability.