MD-PR380A3P3W AIR CONDITIONING PROTECTOR RELAY

Description

The MD-PR380A3P3W Air Conditioning Protector Relay is a three-phase voltage monitoring and protection relay designed to safeguard air conditioners, HVAC systems, compressors, and three-phase motors from abnormal power conditions. It continuously monitors the power supply and disconnects the load when faults such as phase loss, phase reversal, overvoltage, undervoltage, or voltage imbalance occur, helping to prevent equipment damage and extend service life.

KEY FEATURES

• Three-phase power monitoring and protection relay
• Designed for air conditioners, HVAC systems, and compressors
• Monitors phase sequence and phase failure
• Overvoltage and undervoltage protection
• Voltage imbalance detection and protection
• Automatic reset when power returns to normal
• Adjustable restart delay to protect compressors
• LED indicators for power and fault status
• Reliable protection against electrical abnormalities
• Compact design for control panel installation
• Suitable for industrial and commercial HVAC systems
• Improves equipment reliability and service life

SPECIFICATIONS

• Product Type: Air Conditioning Protector Relay
• Model: MD-PR380A3P3W
• Supply Voltage: 3-Phase 380V AC
• Frequency: 50/60 Hz
• Monitoring Functions: Phase Loss, Phase Sequence, Overvoltage, Undervoltage, Voltage Imbalance
• Output Type: Relay Output
• Reset Function: Automatic Reset
• Delay Function: Adjustable Restart Delay
• Indication: LED Status Indicators
• Mounting Type: Panel Mount / DIN Rail Mount (model dependent)
• Operating Temperature: Approx. -10°C to +55°C
• Housing Material: Flame-retardant Industrial Plastic
• Application: Air Conditioners, HVAC Systems, Compressors, Chillers, Pumps, Three-Phase Motors, Industrial Control Panels