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| Pictured is an Iota 30 amp transfer switch, It is located in the attic and is used to control one circuit. When following the solar energy wiring from the inverter the current goes in to a breaker panel through a 30 amp main breaker then out through a 20-amp breaker. When it reaches the house the current passes through a disconnect box where it enters the house on the outside. Then runs direct to the transfer switch. The wire from the house’s breaker box for the circuit you want to have backup power is cut and ran to the transfer switch. |
| So now the transfer switch has two sources of power. The other end of the cut wire is hooked to an added sub panel with a breaker. The output side of the transfer switch is ran to the added sub-panel as the power source and provides protection. You must add the extra sub panel breaker box because if something were to go wrong it would trip the housebreaker then the backup power will take over and re-power the short and you could get a fire. Or you might even fool yourself and think you turned off the power and get the full bite of the inverter. Think safety. |
| You will notice three cables entering the bottom of the transfer switch. In this case the wire on the left comes from the solar electric backup system. The cable in the middle is the output to the house circuit that will have backup power through a sub-panel breaker. The cable on the right is the input from the home’s main breaker box. Make sure you hook all the bare ground wires to the ground block shown in the upper left. Do not bond the neutral to the ground. That is done in the main control panels. Note the green light top middle shows the switch is engaged and powered by the grid. |
| This install has been wired to hold the contacts in the transfer switch together when the grid power is present. When the Grid power goes off line it releases and allows the solar energy backup side to take over powering your main survival mode items. These transfer switches come in standard sizes to fit your needs. |
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