PMD-01a

The EAPL PMD-01A is a precision-engineered phase monitoring device designed to safeguard three-phase electrical systems from faults such as phase failure, phase reversal, and voltage unbalance. It continuously supervises incoming supply conditions and instantly disconnects the load during abnormal situations, ensuring protection of motors, compressors, and other sensitive three-phase equipment. Compact, dependable, and easy to install, the PMD-01A provides reliable protection in industrial and commercial applications.

Key Features:

• Monitors phase sequence, phase failure, and voltage imbalance conditions in three-phase systems.

• Protects against reverse phase rotation and phase loss to prevent motor damage.

• LED indicators display normal and fault status clearly for quick diagnostics.

• Compact, panel- or DIN-rail-mountable enclosure ideal for switchboards and MCCs.

• Factory-calibrated for precise sensing and consistent response.

• Fast-acting trip circuit ensures immediate isolation during fault conditions.

• Wide operating range — typically 415 V AC, 3-phase, 50 Hz.

• Output relay suitable for driving contactors, alarms, or control logic.

Applications:

• Protection of three-phase motors, pumps, compressors, and fans.

• Motor control centers (MCCs) and distribution panels.

• Process automation and HVAC systems.

• Industrial machinery requiring reliable phase monitoring and automatic protection.