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
Pilz 774500 Time Monitoring Safety Relay: Amazon.com: Industrial & Scientific