Siemens 3TG10 10-0AL2 Coupling Power Relay, Screw Connections, 4 Pin, Hum Free, 35mm Standard Mounting Rail Size, 4 NO Contacts, 20VAC Max Resistive Load, 5Hp Rating of Three Phase Load at 50Hz,
Siemens 3RT2027-1AP60 32 AMP, 3 Pole contactor with a 240 Volt AC Coil and 1 N.O./1 N.C. Base Contact: Amazon.com: Industrial & Scientific
Siemens - 6ED10551FB000BA2 - Input/Output Module, Number of Inputs: 4, Number of Outputs: 4, Power Required: 120/240VAC: Amazon.com: Industrial & Scientific
Siemens 3TX7004-3AC14 Interface Relay, Narrow Design, Output Interface With Semiconductor Output, Screw Terminal, 1 NO
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Siemens 3TK28 34-2AB20 Safety Relay Press Control Unit, Two Hand Control Unit, Spring Loaded Terminals, 2 NO Enabling Contacts, 24VAC Rated Voltage, 45mm Width: Electronic Relays: Amazon.com: Industrial & Scientific