voltage monitoring relay-3UG4631-1AW30

Product Description

Siemens SIRIUS Voltage Monitoring Relay – 3UG4631-1AW30

The Siemens 3UG4631-1AW30 is a digital voltage monitoring relay from the SIRIUS 3UG4 series designed for reliable monitoring of AC and DC voltage in industrial automation and electrical distribution systems. It protects sensitive equipment against overvoltage and undervoltage conditions, helping prevent operational failures, equipment damage, and unplanned downtime in industrial applications.  

This compact DIN rail mounted relay supports a wide measuring range of 1–150 V AC/DC with adjustable upper and lower threshold values, configurable hysteresis, and adjustable delay times. The relay features a digital display, fault memory function, and one changeover relay output for dependable alarm and control signaling in industrial control panels and automation systems.

Key Features:

• Digital AC/DC voltage monitoring relay 

• Overvoltage and undervoltage monitoring 

• Measuring range: 1–150 V AC/DC 

• Wide supply voltage: 24–240 V AC/DC 

• Adjustable upper and lower voltage thresholds 

• Adjustable hysteresis settings 

• Adjustable ON-delay and OFF-delay timing 

• Digital display with status indication 

• Fault memory function 

• Slim 22.5 mm DIN rail housing 

• 1 changeover relay contact (SPDT) 

• Suitable for industrial automation and control systems