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Auxiliary relays for tripping and control applications

RelayAux offers a wide range of auxiliary relays specifically designed to meet tripping and control application requirements. The range includes an innovative selection of functions to best suit your tripping and control application requirements and it allows you to choose the most cost-effective solution for your applications.

  • Features

    Our sturdy, easy-to-install relays meet your diverse needs.
    RelayAux relays are available in the distributed versions as follows:  
    - Instantaneous trip relays
    - Trip and lockout relays
    - Time-lag relays
    - Trip circuit supervision relays
    - Auxiliary supply circuit supervision relays


    • Enjoy simple installation (plug-in relays in a wide range of sockets with different installation configurations)
    • Complies with the most demanding test standards: IEC, EN, and IEEE and bears the CE mark 
    • Benefit from high-speed operations
    • Operates continuously even in high ambient temperature, within the whole voltage range
    • Has a high level of electrical insulation between input and output circuits
    • Includes self-cleaning contact
    • Requires no maintenance


    RelayAux’s design, durability and quality makes it suitable for high responsibility controls such as:
    - Electrical utilities
    - Power generation
    - Electrical substations
    - Transportation
    - Industry (Oil & Gas, Food & Beverage, Water, Mining, Minerals & Metals)


    • RelayAux CR REL91220
    • RelayAux CR REL91200 with socks
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