Monitoring phase failures, under-voltage, and over-voltage is essential to protect sensitive equipment and critical areas. Our compact 1TE monitoring relays provide reliable functionality for AC and DC systems.

Reliable monitoring for your electrical systems.

Under-voltage Monitoring Relays

For 3-phase monitoring in case of under-voltage and phase failure. Features:

• Width: 17.8mm (1TE)
• Switching voltage: 85%
• Power consumption: below 1W
• Optional with phase sequence display and LED error indicator

Under-/Over-voltage Monitoring Relays

For monitoring under-voltage, over-voltage, and phase failures. Features:

• Selectable voltage ranges: 230/400V AC or 24-220V DC
• Adjustable under- and over-voltage
• Power consumption: below 1W
• LED error indicator for under- and over-voltage

Phase Indicator

For visual indication of phase states. Features:

• Indication of all 3 phases with green LEDs
• Voltage range: 85-690V AC/DC
• Power consumption: below 1W

Network Monitoring Relays

Ideal for complex systems with asymmetry and frequency monitoring. Features:

• Adjustable over-voltage/under-voltage monitoring
• Configurable network type and operating voltage
• Graphic display for operation and monitoring