In the comments section of the Lever Nuts review, someone asked whether Wago makes a similar style connector that is engineered for higher-power equipment, such as air compressors, welders, and other shop equipment.
I don’t think they make larger or higher power connectors, but I spent a few minutes on Wago just to be sure. What I found was that Wago looks to be replacing 222-style connectors with a new and improved model.
The new 221-series wiring connectors are appreciably smaller than 222-series Lever-Nuts. According to Wago, the new 221 wiring connectors require 40% less space.
Not only are the new connectors smaller, they also have clear see-through housings that let installers check their work.
Plus, it looks like the new connectors have larger easier-to-lift levers.
AND, according to the specs mentioned in Wago’s press release, they can handle higher current connections as well. The maximum current rating will be 20A, the same as with the 222-series connectors. *
As with the Lever-Nuts, there will be 3 sizes: 2-conductor (221-412), 3-conductor (221-413), 5-conductor (221-415).
- Accepts “fine wire” 0.14 – 4mm ^2, and 0.2 – 4mm ^2 stranded and solid wire
- Voltages up to 450V
- Current up to
- Built-in probe test holes
- Temperatures up to 105°C, ambient up to 60°C
It looks like the new connectors are safety-rated for worldwide use.
*Wago USA has explained that the 32A rating is in accordance with IEC and international standards. For the USA market and applications, the 221’s maximum current rating will be based on its maximum conductor size – 12 AWG – and will thus be 20A.
Press Release(via Wago)
The PR is in German, but if you’re browsing with Google Chrome, it should offer to translate the page automatically for you. If you’re using something else, here is a link to the translated press release.
Pricing information will be available later in the year when the 221-series connectors are ready to launch in the USA. In the meantime, Wago USA offered reassuring words that the 222 LEVER-NUTS are NOT going away anytime soon.
Update: These connectors cost around the same as the 222-series connectors, costing more by an almost insignificant amount.