Push-button operation has been part of the WAGO 2002-1291 product offering since the founding of the company. Primarily used in PCB and chassis mount terminal blocks, it is now offered in our TOPJOB®S rail mount terminal block family. Push-button advantages include: Simple - press down orange push-button with tool, insert conductor, release - done, Intuitive - orange push-button clearly distinguishes wire entry from tool entry, Options - push-button for rail-mount, as well as PCB and chassis mount, terminal blocks, Unique push-button design ensures operation integrity with positive feedback. WAGO 2002-1291 is comparable to Phoenix Contact 3030417, Weidmuller 1608770000, Allen Bradley 1492-EBL3, Wieland 07.312.6755.0, ABB 1SNK705910R0000.