Dold Monitoring Relay, 3 Phase, DPDT, DIN Rail

The Dold 3-Phase Monitoring Relay is a reliable protection device designed to continuously monitor the voltage and phase conditions of three-phase electrical systems. It helps safeguard motors, pumps, compressors, generators, and other industrial equipment by detecting faults such as phase loss, phase sequence reversal, phase imbalance, undervoltage, and overvoltage. Upon detecting an abnormal condition, the relay switches its output contacts to prevent equipment damage and system downtime.

Featuring DPDT (Double Pole Double Throw) output contacts, the relay provides flexible control for alarms, shutdown circuits, or automation systems. Its DIN rail mounting design enables quick installation in control panels, while adjustable monitoring parameters and LED status indicators simplify commissioning and fault diagnosis. Built for dependable performance in industrial environments, the relay enhances the safety and reliability of three-phase power distribution systems.

Key Features:

• Monitors three-phase voltage and power supply conditions
• Detects phase loss, phase sequence reversal, phase imbalance, undervoltage, and overvoltage
• DPDT (Double Pole Double Throw) relay output for flexible control applications
• DIN rail mountable for easy control panel installation
• Adjustable voltage thresholds and response delay (model dependent)
• LED indicators for power and fault status
• Improves protection of motors, pumps, compressors, and industrial equipment
• Reliable operation with high switching accuracy
• Compact, robust design suitable for industrial automation
• Ideal for motor control panels, HVAC systems, power distribution, machinery, and process control applications.