This was course i had to do in my apprenticeship. (Germany) What does is look like in your Country? (Electricians for power and building services) : r/electricians
▷ WAGO compact splicing connector, series 221 | 5 cables
WAGO Klemmen 221 SET Compact Hebelklemme I 221-412 221-413 221-415 I Sortiment | eBay
WAGO 221 Series Wiring Connectors with Case 25pc Compact Wago Wire Connectors. Comes with (10) 221-412, (10) 221-413, (5) 221-415 Wago Wire Connectors Assortment Pack Element 115: Amazon.com: Tools & Home Improvement
224-201 | WAGO Lighting Fixture Connector | 1-pole inline connector; 2 connection points | for solid, stranded, or fine-stranded conductors | dual squeeze to open connector | gray | [box of 50 pieces]: Amazon.com: Tools & Home Improvement
TOPJOB S with Push-in Connection | WAGO
Wago Klemmen für Hutschiene in Nordrhein-Westfalen - Isselburg | eBay Kleinanzeigen ist jetzt Kleinanzeigen
WAGO Clamp Set Assortment 221-412, 221-413, 221-415 Clamps and Intervisio Cable Ties 80 mm : Amazon.de: DIY & Tools