PTX5000 AC Power Electrical Safety Guidelines

The following electrical safety guidelines apply to an AC-powered PTX5000 with three-phase AC power supplies:

• AC-powered PTX5000 routers are shipped with three-phase electrical cords with grounding. Do not circumvent this safety feature. Equipment grounding must comply with local and national electrical codes.

• For each three-phase delta AC power distribution unit (PDU), you must provide an external listed customer-site circuit breaker rated minimum 60 A (240 VAC) in the building installation, or as required by local code.

• For each three-phase wye AC PDU, you must provide an external listed customer-site circuit breaker. See PTX5000 AC and DC PDU Electrical and External Circuit Breaker Specifications for details, or as required by local code.

• The delta cores in the mains lead are labeled as follows:

  • Wire labeled GND—Earth

  • Wire labeled L1

  • Wire labeled L2

  • Wire labeled L3

• The wye cores in the mains lead are labeled as follows:

  • Wire labeled GND—Earth

  • Wire labeled L1

  • Wire labeled L2

  • Wire labeled L3

  • Wire labeled N