HP DL360 Critical factors in intra-rack power distribution planning for high-d - Page 4

Connector types Local and national electrical codes specify the types of connectors that should be used when interfacing with facility AC feeds. The location of the facility and the level, amount, and phase of the AC power available determine the type of connector to use. PDUs are designed to distribute power at a specific range and current. PDUs are provided with power cords of appropriate sizes and plug types for the geographic region where they will be used. Table 1 shows profiles of the most common connectors for different regions. Some regions may require connectors not shown in Table 1. Some facilities may require PDU power cords without connectors for hard-wired (terminal) installations. Table 1. AC power connectors (rack-to-facility interface) Geographic region or country North America & Japan Low-line NEMA 5-15 High-line NEMA 6-15 NEMA 5-20 NEMA L6-20 Europe United Kingdom NEMA L5-30 IEC 309 2 phase [1] IEC 309 3 phase [1] n/a Shuko n/a BS1363 [1] Becoming more common in other regions. For more information on AC power connector types refer to the HP technology brief "Selecting power cords and jumper cables for use with HP ProLiant servers" at the following URL: http://h18004.www1.hp.com/products/servers/technology/whitepapers/datacenter.html 4