To my surprise, Wago is coming out with new 221-series lever-action wire connectors that offer improvements over their 222-series Lever-Nuts.
Wago 221 Lever-Nuts Compact Splicing Wire Connectors 221 Series, FNFP
221 Series LEVER-NUTS® Splicing Connectors - WAGO
WAGO 221 Series LEVER-NUTS Compact Splice Connector MultiPack - AndyMark, Inc
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Wago Connectors: What is a Wago Connector?
How to use Wago Connectors?
Connect any combination of solid, stranded and flexible copper wires faster and more reliably The housing is 100 % transparent, allowing you to easily
WAGO 221 Series Lever Nuts 60pc Compact Splicing Wire Connector Assortment with Case. Includes (30x) 221-412, (12x) 221-413, (8X) 221-415, (10x)
RV Electricity – WAGO 221 splicing block is welcome innovation - RV Travel
WAGO 221-413/996-010 3-Wire Lever Nuts Conductor Compact Splicing Connectors, 12-24 AWG (10-Pack) 60338741 - The Home Depot
How to Use Wago Connectors?
5Pcs Wago 221-412 LEVER-NUTS 2 Conductor Compact Connector 10 PK Copper Wire Junction Reusable Wire Terminal Connector - AliExpress
How To Replace 3-Way Switches on a 50's-60's House and Avoid Common Mistakes
Connectors (electrical) • crimp technologies ◽️ Design World articles on engineering integration
