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SuperBlade® Power Cord Guide

At the current time, the Supermicro® SuperBlade® is shipping with power supplies of 1620 Watts or larger. In order to supply adequate power for the SuperBlade system, your site should provide 30 Amps of 200-240V power for every pair of power supplies that are installed in your SuperBlade chassis.

Although the Power Distribution Unit (Figure 3) that is recommended by Supermicro supports up to four power connections, only two connections should be made to each PDU. The PDU has a Nema L6-30 connector plug that can plug into a Nema l6-30 socket (Figure 4). Each PDU, supporting two power supplies must be plugged into a separate circuit that provides 30 Amps of power and a voltage ranging from 200-240V.

Table 1 below illustrates the various Power Supplies offered by Supermicro.

SKU Watts Low / High Volts Low Amps 10% Reserve High Amps 10% Reserve Max Amps
PWS-3K01-BR 3000 200 / 240 15.5 1.6 18.5 1.8 20.3
PWS-2K53-BR 2500 200 / 240 12.9 1.3 15.4 1.5 17
PWS-2K01-BR * 2000 200 / 240 10.3 1.0 12.3 1.2 13.6
PWS-1K62-BR 1620 200 / 240 8.3 0.9 9.8 1.0 10.8
PWS-1K62-BR 1200 100 / 130 10.5 1.0 14.0 1.4 15.4
Table 1 - Power Supply Amperage Draw (* = EOL)

 

 

As this table illustrates, the 2000 Watt power supply can draw up to 13.6 Amps. So that for a single 30 Amp circuit supplying a PDU, no more than 2 power supplies may be connected to the PDU.

 

 

Supermicro SuperBlade® productincludes a power extension cord CBL-0223L for 2500/2000W or CBL-0248L for 1400W/1620W system. The power cord typically connects the power supply to a Power Distribution Unit (optional PDU) in an IT room. The PDU should supply input voltage ranging from 200V to 240V AC. As stated above, the circuit that the PDU plugs into should provide 30 Amps that is not shared by any other device.

Figure 4 - NEMA L6-30 Plug & Socket

Before beginning receptacle installation, consider the following:

  • Observe all local electrical codes and practices.
  • Ensure that the AC power receptacle is wired to the site AC power via conductors routed through flexible metal conduit or via approved AC power cable before installation.
  • Ensure that AC power cord is properly sized, service rated, temperature rated, and complies with all applicable codes and regulations.
  • Ensure that the conductors in conduit are properly sized, service rated, temperature rated, color coded, and comply with all applicable codes and regulations.
  • Ensure that the AC power cord or conduit is long enough to reach from the site AC power junction box to a location within the distance required for the connection.
  • Ensure that the AC power cord or conduit is long enough to reach from the site AC power junction box to a location within the distance required for the connection.
  • Ensure that the number of power supplies connected to one circuit do not exceed the rated amperage of the circuit.

 

Please see Table 2 which lists some examples of international power cords that are compatible with Supermicro.

Country Inlet Equipment Outset Certificate Current Rating (Amps) Voltage Rating (Volts) Drawing
Australian Australian Plug AS 3112 IEC-60320-C19 SAA 15 250 Australia
Switzerland IEC-60309 IEC-60320-C19 TUV 15 250 Switzerland
China China Plug GB 2099-1-1996 IEC-60320-C19 CCEE 16 250 China
Israel Israeli Plug SI32 IEC-60320-C19 SII 16 250 Israel
India / South Africa Indian Plug BS 546 IEC-60320-C19 SABS 16 250 India
Italy Italian Plug CEI 23-16 IEC-60320-C19 VDE, HAR 16 250 Italy
Euro European Plug "Schuko" CEE 7/7 IEC-60320-C19 VDE, KEMA, CEBEC, NEMKO, DEMKO, SETI, OVE, SEV 15 250 Euro
UK U.K. Plug BS 1363 IEC-60320-C19 BSI 15 250 UK
US NEMA 6-20P Plug IEC-60320-C19 UL 15 250 US
Table 2 - International Power Cords For SuperBlade Power Supplies

 

WARNING: Do not set site AC circuit breakers serving the SuperBlade chassis to ON before verifying that the chassis has been wired into the site AC power supply correctly. Failure to do so may result in injury to personnel or damage to equipment when AC power is applied to the chassis.