A:Answer When you ask about whether the Energy Star® Certified LG 4.5 Cu. Ft. HE Smart Front Load Washer and 7.4 Cu. Ft. Electric Dryer WashTower™ with Steam and Built-In Intelligence - Black Steel, Model # WKEX200HBA, "offers different alternative options for the plugs on the rear.", we are assuming that you are referring to the power cords and what type of plugs they have.
The washer, like any washer, is equipped with a power cord that has a 3-pronged, grounding plug that must be plugged into a 120 VAC, 60 Hz, 3-wire, grounding outlet.
As with any electric dryer, wiring and grounding for the dryer must conform to your local building codes, or in their absence, with the latest edition of the National Electrical Code, ANSI/NFPA 70.
The dryer has its own terminal block that must be connected to a separate 240 VAC, 60-Hertz,
single-phase circuit, fused at 30 amperes (the circuit must be fused on both sides of the line).
Depending on your local building codes, you can use a 3-wire or a 4-wire connection.
A 4-wire connection is required for all mobile and manufactured home installations, as well as all
new construction after January 1, 1996.
A 3-wire connection is NOT permitted on new construction after January 1, 1996.
If in doubt, please check your local building codes or consult with your local building inspector...^Ivan.
