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Connection Technology for Hazardous Areas

  • 2/2/2026

    • WAGO’s 221 Series Splicing Connector for hazardous areas opens up entirely new design possibilities, particularly for the manufacturers of distribution boxes, terminal boxes, lights or electronic devices.

    The light gray “Ex protection” version also retains all the advantages of the 221 Series. As an all-purpose terminal block of ignition protection type Ex e (“Increased Safety”) it can be used for all applications in zones 1 and 2.

    Benefits of the 221 Series in Ex Areas

    The ease of handling of the 221 Series is also reproduced in the version for hazardous areas: Pull the lever up, insert a conductor, release the lever.

    The 221 Series connectors can be used in a wide range of applications, not only because they are available as 2-, 3- or 5-conductor terminal blocks, but also because of the different versions: The 4 mm2 version of the 221 Series allows you to use fine-stranded conductors from 0.2 to 4 mm2, while the mm2 version connects all conductor types from 0.5 to 6 mm2 (20–10 AWG).

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    Using a Carrier

    For use with a mounting carrier, the following rule applies depending on the required working voltage: If the terminal blocks are placed directly next to each other in the carrier, the working voltage is 275 V. However, if the terminal blocks are inserted in such a way that a spacer is visible between each pair, the working voltage can be up to 440 V. This ensure compliance with the creepage distances and clearances required by the standard.
     

    The 2-, 3- and 5-conductor terminal blocks can be inserted into the matching mounting carrier. The carrier can either be clamped onto a mounting rail or screwed tightly to any smooth surface. A decisive advantage for applications in hazardous areas: Even once the terminal block has been inserted into the carrier, conductors can still be connected and disconnected, e.g., if only individual conductors have to be rewired.

    International Certificates

    Would you like to use the 221 Series for hazardous areas internationally? With the certificates for ATEX (Ex 2 II G), IECEX (Ex eb IIC Gb) and American Ex (AEx eb IICGb), you can use the 221 Series flexibly.

    Would you like to read the information again on your own time? Download the product flyer.

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    The Products in Detail

    Splicing connector with levers; for all conductor types; for Ex e applications; max. 6 mm²; 5-conductor; transparent housing; Operating temperature (max.): 105 °C; 6,00 mm²; transparent
    Item no. 221-685

    Splicing connector with levers; for all conductor types; for Ex e applications; max. 6 mm²; 5-conductor; transparent housing; Operating temperature (max.): 105 °C; 6,00 mm²; transparent

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    Splicing connector with levers; for all conductor types; for Ex e applications; max. 6 mm²; 3-conductor; transparent housing; Operating temperature (max.): 105 °C; 6,00 mm²; transparent
    Item no. 221-683

    Splicing connector with levers; for all conductor types; for Ex e applications; max. 6 mm²; 3-conductor; transparent housing; Operating temperature (max.): 105 °C; 6,00 mm²; transparent

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    Splicing connector with levers; for all conductor types; for Ex e applications; max. 6 mm²; 2-conductor; transparent housing; Operating temperature (max.): 105 °C; 6,00 mm²; transparent
    Item no. 221-682

    Splicing connector with levers; for all conductor types; for Ex e applications; max. 6 mm²; 2-conductor; transparent housing; Operating temperature (max.): 105 °C; 6,00 mm²; transparent

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    Splicing connector with levers; for all conductor types; for Ex e applications; max. 4 mm²; 3-conductor; transparent housing; Operating temperature (max.): 105 °C; 4,00 mm²; transparent
    Item no. 221-483

    Splicing connector with levers; for all conductor types; for Ex e applications; max. 4 mm²; 3-conductor; transparent housing; Operating temperature (max.): 105 °C; 4,00 mm²; transparent

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    Splicing connector with levers; for all conductor types; for Ex e applications; max. 4 mm²; 2-conductor; transparent housing; Operating temperature (max.): 105 °C; 4,00 mm²; transparent
    Item no. 221-482

    Splicing connector with levers; for all conductor types; for Ex e applications; max. 4 mm²; 2-conductor; transparent housing; Operating temperature (max.): 105 °C; 4,00 mm²; transparent

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    Splicing connector with levers; for all conductor types; for Ex e applications; max. 4 mm²; 5-conductor; transparent housing; Operating temperature (max.): 105 °C; 4,00 mm²; transparent
    Item no. 221-485

    Splicing connector with levers; for all conductor types; for Ex e applications; max. 4 mm²; 5-conductor; transparent housing; Operating temperature (max.): 105 °C; 4,00 mm²; transparent

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    Mounting carrier; for Ex applications; 221 Series - 6 mm²; for DIN-35 rail mounting/screw mounting; light gray
    Item no. 221-511

    Mounting carrier; for Ex applications; 221 Series - 6 mm²; for DIN-35 rail mounting/screw mounting; light gray

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    Mounting carrier; for Ex applications; 221 Series - 4 mm²; for DIN-35 rail mounting/screw mounting; light gray
    Item no. 221-501

    Mounting carrier; for Ex applications; 221 Series - 4 mm²; for DIN-35 rail mounting/screw mounting; light gray

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    Mounting carrier; 221 Series - 6 mm²; for DIN-35 rail mounting/screw mounting; blue
    Item no. 221-510/000-006

    Mounting carrier; 221 Series - 6 mm²; for DIN-35 rail mounting/screw mounting; blue

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    Mounting carrier; 221 Series - 4 mm²; for DIN-35 rail mounting/screw mounting; blue
    Item no. 221-500/000-006

    Mounting carrier; 221 Series - 4 mm²; for DIN-35 rail mounting/screw mounting; blue

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    221 Series Splicing Connectors in Various Applications

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    In Building Installation

    From intercom system wiring to electrical ovens – connecting different conductor types is quick and easy with 221 Series Splicing Connector.

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    In Devices

    Proven in electrical installation, promising in design: Discover the advantages of the WAGO 221 Series Splicing Connector in device manufacturing now!

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