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    T1600 AC Power Electrical Safety Guidelines

    The following electrical safety guidelines apply to an AC-powered T640 or T1600 router with three-phase AC power supplies:

    • AC-powered 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 supply. you must provide an external listed customer site circuit breaker rated minimum 40 A (240 VAC) in the building installation, or as required by local code.
    • For each three-phase wye AC power supply. you must provide an external listed customer site circuit breaker rated minimum 25 A (415 VAC) in the building installation, 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

    Caution: For Juniper systems with AC power supplies, an external surge protective device (SPD) must be used at the AC power source.

    Published: 2013-08-16