Input power requirements

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Two independent sets of power outlets are required for system power cords for connecting to customer Power Distribution Units (PDUs).

To prevent system outages or a single point of failure, independent power feeds to each PDU are recommended.

Important: At least one of the power feeds must have power conditioning to ensure an acceptable level of power quality. For example, ANSI Standard C84.1 or EN Standard 50160. For input voltage and frequency requirements, see Table 1 and Table 2.

The rack mount may be powered by either single-phase or three-phase power.

Systems with 1 CPC drawer may use either single-phase or three-phase PDUs.
Systems with 2 CPC drawers must use three-phase PDUs.

Table 1. Single-phase PDU Input Voltages and Frequencies
Characteristic	Voltage (Single-phase)
Nominal input voltages	200 - 240Vrms AC
Minimum tolerated input voltage	180Vrms AC (-10%)
Maximum tolerated input voltage	264Vrms AC (+10%)
Steady-state input frequencies	50 or 60Hz ± 3Hz
PLD input under-voltage (<10 seconds)	172Vrms AC

Table 2. Three-phase Line-Line PDU Input Voltages and Frequencies
Characteristic	Line Voltage (three-phase) Delta-connected	Line Voltage (three-phase) WYE-connected
Nominal input voltages	200 - 240Vrms AC	380 - 415Vrms AC
Minimum tolerated input voltage	180Vrms AC (-10%)	342Vrms AC (-10%)
Maximum tolerated input voltage	264Vrms AC (+10%)	456Vrms AC (+10%)
Steady-state input frequencies	50 or 60Hz ± 3Hz	50 or 60Hz ± 3Hz
PLD input under-voltage (<10 seconds)	172Vrms AC	298Vrms AC