Electrical connections are the backbone of safe, reliable, and efficient systems – whether in residential, commercial, or industrial applications. For decades, WAGO has been at the forefront of connector innovation, and their 221 Series has become a favourite amongst industry professionals worldwide. Compact, versatile, and tool-free, the 221 range is designed to save installers time while maintaining uncompromising connection security.
Splicing Connectors with Levers, 221 Series
The 221 Series Splicing Connectors are engineered to connect solid, stranded, and fine-stranded conductors with speed and reliability. Available in two-, three-, and five-wire versions, they cover conductor sizes from 0.14 to 4 mm² in the standard range, and up to 6 mm² in the heavy-duty variant. This flexibility makes them a universal solution for lighting circuits, distribution cabinets, and equipment wiring.
What sets the 221 apart is its simple lever mechanism. With minimal effort, installers can open the lever, insert the conductor, and lock it in place securely – all without tools. Recessed side grips make the connectors easy to handle, even in tight spaces, while their transparent housing allows visual confirmation of correct wire placement.
For ongoing maintenance and compliance, the 221 Series also features dual test slots, providing convenient access for standard probes from both the conductor side and the opposite side – even after installation. This reduces downtime during fault-finding and ensures safety standards are consistently met.
The Wago 221 series of compact splicing connectors is available at Rapid Electronics in a variety of configurations to suit different needs. The selection includes the WAGO 221 Series Splicing Connectors with Levers, with options for 2-conductor (WAGO 221-412), 3-conductor (WAGO 221-413), and 5-conductor (WAGO 221-415) connections for conductors up to 4mm², as well as larger versions for up to 6mm² (WAGO 221-612, WAGO 221-613, and WAGO 221-615).
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When should you use the 221 Series Inline Splicing Connector?
WAGO has expanded the 221 family with the Inline Splicing Connector, a slimline version designed for feedthrough connections in restricted spaces. An example of this is the WAGO 221-2411, a 2-conductor connector that supports conductors from 0.2 to 4 mm², the inline design combines all the advantages of the lever-operated splicing connector with a reduced footprint – perfect for modern installations where space efficiency is crucial.
Like the standard 221 models, the inline variant provides tool-free operation, visible conductor positioning, and reliable clamping technology that withstands vibration and mechanical stress. Whether used in control panels, machinery, or field wiring, the inline connector provides an elegant solution where traditional terminal blocks or bulky connectors would be impractical.
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Mounting carriers and junction boxes
To support larger and more structured installations, WAGO also offers mounting carriers for the 221 Series. These carriers allow two-, three-, and five-wire connectors to be secured horizontally or vertically, either snapped directly onto a DIN rail or fixed to smooth surfaces with screws. Clear colour coding – such as grey/yellow for ground or blue for neutral – makes troubleshooting and maintenance faster.
For projects involving multiple connections, the WAGO 207-4301 Junction Box is designed specifically for the 221 Series. It accommodates up to 60 conductors, with a structured layout that keeps wiring neat, labelled, and secure. The snap-on cover provides quick access for modifications while maintaining safety and compliance in service.
The industry standard for modern connections
From small-scale electrical installations to complex control cabinets, the WAGO 221 Series delivers speed, safety, and flexibility in one compact package. With solutions ranging from splicing and inline connectors to structured carriers and junction boxes, the range empowers installers to work faster without compromising quality.
It’s no surprise that the 221 has become a trusted standard for electricians, engineers, and OEMs across industries.
Discover the WAGO 221 Series today – and see why it’s the connector of choice for professionals.
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