Siemens 3RH1262-1BB40 8-Pole Contactor Relay, rated at 6 A, with screw terminals, 6 NO + 2 NC contacts with a control supply voltage of 24V DC. auxiliary switch block: Amazon.com: Industrial & Scientific
Siemens 3TH42 Contactor Aux 3Th4 62E 125 mm VCC Screw : Amazon.de: Business, Industry & Science