Power block models RPBA are the most commonly used for ac MAXI-BEAM operation. As the typical hookup shows, they are intended to switch the same ac voltage as is used to power the MAXI-BEAM. However, both can switch any ac voltage that is lower than the supply voltage, as long as both ac circuits share a common neutral. Observe local codes whenever mixing ac voltages in a common wiring chamber. These blocks are designed to handle the inrush current of ac inductive loads like motor starters and solenoids. There is no minimum load requirement, and they will interface directly to inputs of all ac programmable logic controllers (PLCs).