Sometimes our customers just want a distribution option, and we designed the IAC-PD to support this need. Whether a customer wants to use it in 480V or 208V applications, this cabinet provides that flexibility. The IAC-PD allows customers to configure 42-pole panelboards, subfeed breakers, or a combination of the two to mix and match for the right solution.Sometimes our customers just want a distribution option, and we designed the IAC-PD to support this need. Whether a customer wants to use it in 480V or 208V applications, this cabinet provides that flexibility. The IAC-PD allows customers to configure 42-pole panelboards, subfeed breakers, or a combination of the two to mix and match for the right solution.