Replacement For PC100 520556 Power Center Kit:Provides power and control communication to and from the IntelliChlor cell. Designed For use with IntelliChlor electrolytic cells, providing reliable and consistent chlorine production for pools and spas. Effortless Pool Maintenance: The Power Center 520556 offers hassle-free pool maintenance by automatically generating chlorine from salt in your pool water. Installation: Remove the old power center, install the new power center on a flat surface, and connect the power supply (including installation instructions). For IC20 IC40 IC60. For PC100 (P/N 520556). 90-130VAC, 50/60Hz, 220W (2AMP). 220-240VAC, 50/60Hz, 220W (1AMP). Before installing the valve cover or operating any suction port, be sure to turn off all power to the swimming pool pump.