837271

PILZ PMDsrange Series electronic monitoring relays continuously watch machine and system parameters — voltage, phase sequence, current, insulation resistance, true power, motor temperature, standstill, and fault voltage — and switch outputs when values fall outside safe limits. Compact 22.5 mm DIN rail housings and plug-in terminal accessories simplify cabinet installation and wiring, while remote timer controller accessories allow relay timing adjustments without opening the enclosure. The series provides reliable protection for motors, drives, transformers, and electrical distribution in industrial automation environments.

Key Features

• Electronic monitoring relay series for continuous machine and system condition monitoring in industrial automation
• Monitors voltage levels, phase sequence, phase failure and asymmetry, current, insulation resistance, true power, motor temperature, standstill, and fault voltage where specified
• Compact 22.5 mm housing design supports space-efficient DIN rail installation for most relay configurations
• Available monitoring functions include min/max voltage monitoring, phase failure and asymmetry detection, current threshold monitoring, thermistor motor protection, earth fault detection, true power monitoring, and fault voltage monitoring
• Selected true power monitoring relays provide 0–10 VDC or 4–20 mA analogue output for energy management integration
• IP40 housing protection and DIN rail mounting are standard across the listed relay configurations
• Remote timer controller accessories allow timing adjustments on compatible PMDsrange relays without enclosure access
• Plug-in terminal accessories simplify wiring and in-service connector replacement on compatible devices
• Item-specific specifications vary by monitoring function, supply voltage, measuring range, output configuration, analogue output, and accessory compatibility