from the device, ensure that all connections to dc power are disconnected at the dc power input
terminals.
Statement 20
CAUTION:
To avoid personal injury, before lifting the unit, remove all the blades to reduce the weight.
Statement 21
CAUTION:
Hazardous energy is present when the blade is connected to the power source. Always replace the
blade cover before installing the blade.
Statement 22
CAUTION:
To reduce the risk of electric shock or energy hazards:
• This equipment must be installed by trained service personnel in a restricted-access location, as
defined by the NEC and IEC 60950, Third Edition, The Standard for Safety of Information
Technology Equipment.
• Connect the equipment to a reliably grounded safety extra low voltage (SELV) source. An SELV
source is a secondary circuit that is designed so that normal and single fault conditions do not
cause the voltages to exceed a safe level (60 V direct current).
• The branch circuit overcurrent protection must be rated at a minimum of 13 A to a maximum of 15
A.
• Use 16 American Wire Gauge (AWG) or 1.3 mm
2
copper conductor only, not exceeding 3 meters in
length.
• Torque the wiring-terminal screws to 12 inch-pounds (1.4 newton-meters).
• Incorporate a readily available approved and rated disconnect device in the field wiring.
Statement 23
© Copyright Lenovo 2016, 2018 xiii
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