phase failure and sequence monitoring-3UG4616-1CR20

Product Description

Siemens SIRIUS Phase Failure and Sequence Monitoring Relay – 3UG4616-1CR20

The Siemens 3UG4616-1CR20 is a high-performance SIRIUS digital monitoring relay designed for reliable monitoring of three-phase power systems with neutral conductor connection. It provides advanced protection against phase failure, incorrect phase sequence, undervoltage, overvoltage, and voltage asymmetry, helping safeguard motors, compressors, pumps, HVAC systems, and industrial machinery from electrical faults and operational damage.

This compact DIN rail mounted relay supports monitoring for 3-phase voltage systems from 160–690 V AC and features adjustable hysteresis, configurable delay times, and dual changeover relay outputs for dependable fault signaling and protection control. The device is ideal for industrial automation, switchgear panels, motor control centers, and critical power monitoring applications.

Key Features

·         Digital phase monitoring relay

·         Detects phase failure and phase sequence errors

·         Overvoltage and undervoltage monitoring

·         Voltage asymmetry monitoring

·         Adjustable hysteresis settings

·         Adjustable delay time from 0–20 seconds

·         2 changeover relay contacts

·         DIN rail mounting design

·         Screw terminal connections

·         LED status indication

·         Compact industrial housing

·         Suitable for industrial automation systems