Dinkle DSS4N-10P DIN Rail Terminal Block Press-Fit Jumper DK4N Ten Pole, Pack of 10: Amazon.com: Industrial & Scientific
What is a Jumper?
Allen-Bradley 1492-SJS Terminal Block, Side Jumper, Insulating Sleeve, No Cover, White for use with Cat. No. 1492-N39, N49, H1, HM1, H4, H5, H6, H7 | State Electric
2.54mm Short Block Jumper Block Connecting Block Pin Connector Pin Cap Closed Circuit Risk - Connectors - AliExpress
100pcs Pitch 2.0mm Pin Header Shorting Cap Jumper Cap Short Block Black - Connectors - AliExpress