Products catalog

  • Three-phase voltage control relay | 12V control | overvoltage / undervoltage protection | mini | sealed | high-power contacts

    Code: ES-RD-MV12V

    Three-phase voltage monitoring relay is a reliable solution for protecting the electrical network from voltage fluctuations, phase imbalance, or critical faults. This compact yet powerful device ensures stable and safe operation of electrical equipment in both industrial environments and smaller installations. Thanks to its miniature size, sealed construction, and high-power contacts, the relay is suitable for installation in electrical panels where reliability and space saving are essential. 

  • Technical specifications

    Product type: three-phase voltage monitoring relay
    Relay type: voltage relay
    Purpose: protective
    Monitoring: three-phase (3 phases)
    Rated voltage: 12V
    Contact load: high power
    Construction: sealed (protection against dust and moisture)
    Size: miniature (compact)
    Color: white

    Functions

    Overvoltage protection – automatically disconnects equipment when the voltage exceeds the set limit
    Undervoltage protection – protects devices from operating at too low voltage
    Three-phase system monitoring – continuously checks all three phases simultaneously
    Voltage imbalance control – detects irregularities between phases and protects equipment
    High-power contacts – allow reliable control of higher loads
    Sealed construction – protects against dust and moisture, ensures durability
    Miniature design – easily fits even in small electrical enclosures
    Easy integration – easily installed into electrical panels and control systems

    Applications

    For household users: Protecting home electrical equipment (e.g., pumps, compressors), use in small workshops or farms, ensuring stable voltage supply for sensitive equipment
    In industry / for engineers: In electrical network protection solutions, protection of production lines and motors, automation systems where stability is critical
    For electricians: Assembly of electrical panels, protection of three-phase motors and equipment, quick and reliable solution for clients
    Other applications: Pumping stations, ventilation systems, generator units, agricultural equipment

    Advantages

    Three-phase protection in one device
    Compact size – easy installation
    Sealed construction (durability)
    High-power contacts
    Reliable protection against voltage fluctuations

    Disadvantages

    No digital display or indication
    Requires precise selection according to network parameters 

    Illustrative image may have been created using AI. The appearance of the product may differ slightly from the image shown. Please refer to the technical specification.
  • Subscribtion to new arrivals

    privacy policy

    Information