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Power Relay 943D206 Series
The 942D206 Series Power Relay (also sometimes referred to as a Contactor or Relay) is/was manufactured or cataloged by Hamilton Sundstrand (a United Technologies Company). Part numbers within the 941D335 Series include but may not be limited to 943D206-3, 943D206-4, and 943D206-5. The 943D206 Power Relay 120/208 Vac, 3 Phase, 400 Hertz, is an electrically operated, magnetically latched, three-pole, single throw, plunger type solenoid unit. Each relay has seventeen auxiliary circuits. Both normally open (N.O.) and normally closed (N.C.) sides of the auxiliary switches are available at the relay connector. In addition to the auxiliary switches, each relay has a coil switch to coordinate relay trip and close action and to remove power from the trip and close coil after operation. Power connections to the relay are made by six 3/8-24 inch terminal studs. Normally, power is connected to terminals T1, T2, and T3 and the power leaves the relay through L1, L2, and L3 terminals. Connections for the auxiliary switches and the operating coils are through the pins of the connector. Typically, the 943D206 Series Power Relay can be found on Heavy Jet aircraft within the Commercial and Military sectors.