HP StorageWorks XP24000 Disk Array Site Preparation Guide, v01 (AE131-96002, June 2007)

In many cases, local codes do not allow a branch circuit fitted with a 50-amp receptacle or connector
to be protected by an overcurrent-protection device with a rating lower than 50 amps. You can order
an HP XP24000 disk array with the 30-amp power option to comply with these local codes. Your
electrician knows the appropriate code requirements for your location/site.
XP24000 Disk Array Site Preparation Guide 59