Power installation considerations
The 9176 operates from 2 or 4 power cords, which provide redundant attachment to the electrical utility.
When properly connected to independent branch circuits, they provide system immunity to most types of power outage. See Dual power installation for examples of typical redundant wiring facilities.
Note: The power cord sets provided are for use only with this product.
The power supplies at the front end of the system use active resistive load synthesis. Harmonic distortion of the current waveform is small enough that it need not be considered in planning the installation. The power factor is typically 0.95 or higher.
| Supply type | Line-Line nominal input voltage | input frequency | Circuit Breaker (CB) current rating |
|---|---|---|---|
| 2 or 4, single phase power cords | 200-240 V AC | 50/60 Hz (47 to 63 Hz with tolerance) |
60/63A |
| 2 or 4, 3-phase DELTA power cords | 200-240 V AC | 50/60 Hz (47 to 63 Hz with tolerance) |
60A |
| 2 or 4, 3-phase WYE power cords | 380-415 V AC | 50/60 Hz (47 to 63 Hz with tolerance) |
30/32A |
Attention:
- IBM Service Personnel: The task of using a meter and probes to take voltage measurements on receptacles/outlets must be performed by a Qualified Electrical Worker (QEW) or licensed electrician. In countries where IBM service personnel are not qualified to perform this task, the IBM service person must notify the customer that they must arrange for a QEW (a licensed electrician may be considered a QEW) to perform the receptacle testing.
- Refer to IBM's Global Safety Program for more information on QEW: https://w3.ibm.com/w3publisher/ibm-global-safety/information-per-country.