Reletek RM-FVA 63A – Three Phase Voltage and Current Monitoring Relay
1. Overview
The Reletek RM-FVA 63A is a multifunctional monitoring relay designed for three-phase network systems. It is specifically built to measure voltage and current fluctuations across the three phases. With a maximum current rating of 63A, this device ensures safe and reliable operation of connected equipment by detecting abnormal voltage and current conditions.
2. Technical Specifications
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Model: RM-FVA 63A
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Brand: Reletek
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Function: Three-phase voltage and current monitoring
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Rated Voltage: 3-phase, typically 400V AC (phase-to-phase)
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Current Rating:
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Up to 63A
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Monitoring Parameters:
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Overvoltage and undervoltage
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Phase loss and phase sequence
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Current imbalance and overload detection
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Measuring Type: True RMS measurement for accurate readings
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Output Contact:
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1 or 2 changeover relays (depending on model variation)
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Rated contact current: Typically 5 A to 10 A (resistive load)
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Indication:
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LED indicators for status, faults, and operation
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Mounting:
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DIN rail mounting (35 mm rail)
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Protection Degree:
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IP20/IP30 (depending on enclosure)
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Dimensions: Compact modular design, typically fits 2 or 3 DIN modules
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Operating Temperature:
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Usually -10°C to +55°C
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Standards & Compliance:
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CE marked, RoHS compliant
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3. Applications
The RM-FVA 63A is used in various electrical and industrial setups to provide protection and performance monitoring for 3-phase loads:
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Industrial Motors and Pumps
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HVAC Systems
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Elevator Control Panels
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Machinery and Conveyor Systems
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Power Distribution Panels
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Generator and Backup Power Monitoring
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Commercial Electrical Installations
It helps prevent equipment damage due to voltage spikes, current surges, or phase faults.
4. Key Features
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Monitors both Voltage & Current on a three-phase system.
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High Current Capacity up to 63A, suitable for large loads.
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Protection Against Abnormal Conditions like over/undervoltage, overloads, and phase failure.
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Real-Time Monitoring for safer operation and reduced downtime.
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Compact Design for easy integration into control panels.
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LED Indicators for quick status diagnosis.
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DIN Rail Mounting for fast installation and maintenance.

