GIC Voltage Monitoring Relays | IndMALL Automation

IndMALL Automation offers a comprehensive range of GIC Voltage Monitoring Relays designed to protect electrical systems from voltage fluctuations and phase-related faults. Built for precision, reliability, and adaptability, GIC’s voltage monitoring solutions help ensure stable power conditions across single-phase and three-phase applications.

The SM 800 Series features dual relay outputs with configurable settings, selectable voltage and frequency thresholds, and compatibility with both 3-Phase 3-Wire and 4-Wire systems. For compact installations, the SM 175 Series offers fault-specific LED indications, adjustable time delays, and a slim 17.5 mm profile.

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GIC Voltage Monitoring - SM800

GIC Voltage Monitoring - SM800

  • Configurable for both 3-Phase 3-Wire and 3-Phase 4-Wire systems

    Selectable thresholds for voltage, frequency, and phase-related faults

    Adjustable ON/OFF time delay in seconds or minutes

    Available with 5A single and dual relay outputs

    Two independent relay outputs with separate programmable settings

GIC Voltage Monitoring – SM501

GIC Voltage Monitoring – SM501

  • Designed for 3 Phase 3 Wire systems

    Selectable Under Voltage and Over Voltage trip levels for flexible configuration

    Adjustable time delay for customized fault response

    Available models with Selectable Phase Asymmetry thresholds

    LED indicators for clear Power and Fault status monitoring

    Operates on the Voltage Sensing principle for accurate detection

    Equipped with a 2 C/O (Changeover) relay output configuration for reliable switching

GIC Voltage Monitoring - Series SM 500

GIC Voltage Monitoring - Series SM 500

  • Configurable for both 3 Phase 4 Wire and Single Phase systems

    Selectable Over Voltage and Under Voltage trip levels for precise control

    Adjustable time delay settings for fault response customization

    LED indicators clearly display Power and Fault conditions

    Based on a reliable Voltage Sensing principle for accurate monitoring

    Available in 1 C/O or 2 C/O relay output configurations for flexible application use

Frequently Asked Questions

What is a voltage monitoring relay?

A voltage monitoring relay is a safety device that checks if the voltage in an electrical system stays within a safe range. If the voltage goes too high (overvoltage) or too low (undervoltage), the relay takes action—like switching off the connected equipment—to prevent damage.

The main job of a voltage monitoring relay is to protect motors, machines, and electrical panels from unstable power. It helps maintain system stability and avoids breakdowns caused by poor voltage supply. These relays are widely used in industrial, commercial, and residential power systems.

What is voltage monitoring?

Voltage monitoring is the process of continuously checking the voltage levels in an electrical system. It helps detect overvoltage or undervoltage conditions that can damage equipment or cause system failures. This monitoring ensures that power stays within the safe and expected range.

Voltage monitoring can be done on single-phase or three-phase systems and across different voltage levels. It’s commonly used in homes, factories, and power distribution systems to protect machines, improve efficiency, and avoid downtime. By catching voltage issues early, it helps maintain safe and stable electrical operations.

What is the use of voltage monitoring relay?

The use of a voltage monitoring relay is to protect electrical equipment from abnormal voltage conditions. It monitors the system’s voltage levels and disconnects the load if the voltage goes too high (overvoltage) or too low (undervoltage). This helps avoid damage to machines and extends their life.

Another important use of voltage monitoring relay is to maintain system stability and ensure safe operation. It prevents failures caused by poor power supply and helps in early fault detection. These relays are commonly used in industrial panels, motors, pumps, and other sensitive electrical devices.