WAGO connection terminal flexible up to 4mm² - 221-415 | 902-1012
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