Three Allen Bradley Industrial Relays or Contactors model 700 – P400 A1. These are 4 pole single throw relays with contact units that can be either NO or NC (normally open / normally closed). Contact closing can handle current up to 60 amp for motor starting — contact opening will handle much less – 10 amp. (motor starting current is up to 300 percent more than motor running current) Contacts are stackable. No overload device. Coil 120v AC. Sell $25 each.
Information is here; http://ab.rockwellautomation.com/Relays-and-Timers/NEMA-Heavy-Duty-Relays