Siemens 3TH2031-0BB4 CONTACTOR Relay 31E EN 50 011 3NO+1NC, Screw TERMINALS Operation Solenoid System DC 24V, White : Amazon.co.uk: DIY & Tools
Siemens 3RH2140-1AB00 4 pole 10 AMP Control Relay with 4 N.O. and contacts and a 24 volt AC coil - Screw Terminals: Amazon.com: Industrial & Scientific
Siemens 3RH2140-1AB00 4 pole 10 AMP Control Relay with 4 N.O. and contacts and a 24 volt AC coil - Screw Terminals: Amazon.com: Industrial & Scientific