Electromagnetic Power Relay, 8-Pin 10 AMP 24V AC Relay Coil with Socket Base, LED Indicator, DPDT 2NO 2NC - LY2NJ [Applicable for DIN Rail System]: Amazon.com: Industrial & Scientific
Eaton ESR5-NO-41-24VAC-DC Safety Relay, Single Channel Main Unit, 4 NO Safety Output, 1 NC Signal Output, 24 VAC/DC Control Voltage: Electronic Relays: Amazon.com: Industrial & Scientific