Amazon.com : PILZ 540000 PSEN CS.1P/ PSENCS1.1 1 UNITNEW IN A BOX : Electronics
Pilz 774315: Amazon.com: Industrial & Scientific
Amazon.com: PILZ 774532 : Industrial & Scientific
Amazon.com: PILZ 793400 5 Ports, Priced/(Pack of 2), 1 Wire PER Port/Solid OR Stranded/Copper, MI1P/MI2P/MO1P/MO3P/ML1P, Black Polyamide HOUSING, Set Screw TERMINALS, 2 Piece Set : Industrial & Scientific