The Powerware PDM series can be easily expanded as power needs change by adding up to two field installable distribution cabinets. This expands the distribution capacity from 84 to up to 252 circuit breaker pole positions. Each Powerware PDM can be configured to meet your specific needs for isolation, voltage transformation, harmonic reduction and voltage regulation with virtually limitless distribution options. Built-in system monitoring and diagnostics facilitate load balancing and warn of potential threats to your critical equipment.