Reletek RD-MVA 63A | Over and Undervoltage single phase

Reletek RD-MVA 63A | Over and Undervoltage single phase

Reletek RD-MVA 63A | Single-Phase Over and Undervoltage Protector

1. Overview

The Reletek RD-MVA 63A is a digital voltage and current protection relay designed to safeguard single-phase electrical systems and home appliances—such as refrigerators, air conditioners, washing machines, televisions, and audio equipment—from harmful voltage fluctuations and overcurrent conditions.

2. Key Features

• Microcontroller-Based Design: Ensures precise monitoring and protection against voltage and current anomalies.

• Dual 3-Digit Display: Provides real-time voltage readings for accurate monitoring.

• Adjustable Settings:

  • Overvoltage Protection: Settable between 220V and 280V.

  • Undervoltage Protection: Settable between 140V and 210V.

  • Reset/Start Delay: Adjustable from 5 to 600 seconds, allowing customization based on specific requirements.

• Trip Delays:

  • Overvoltage Trip Delay: Less than 0.5 seconds.

  • Undervoltage Trip Delay: 0.5 seconds for voltages ≥120V; 0.1 seconds for voltages <120V.

  • Overcurrent Trip Delay: Adjustable between 5 to 600 seconds.

• Voltage Measurement Accuracy: Within 2% across the entire range.

• Output Contact: Equipped with 1 Normally Open (NO) contact.

• Mounting: Designed for DIN rail installation, facilitating easy integration into electrical panels.

• Protection Degree: Rated at IP20, suitable for indoor environments.

3. Applications

• Residential and Commercial Electrical Systems: Protects appliances and equipment from voltage sags, surges, and overcurrent situations.

• Industrial Equipment: Ensures machinery operates within safe voltage and current parameters, preventing potential damage.

• HVAC Systems: Safeguards heating, ventilation, and air conditioning units from electrical anomalies.

4. Benefits

Enhanced Equipment Longevity: By preventing exposure to harmful voltage and current levels, the RD-MVA 63A extends the lifespan of connected devices. ✔ Customizable Protection: Adjustable settings allow users to tailor protection parameters to specific needs. ✔ User-Friendly Interface: The dual display and LED indicators provide clear status updates and fault indications. ✔ Reliable Performance: Microcontroller-based design ensures accurate detection and rapid response to electrical faults.