CAUTION:
The power-control button on the device does not turn off the electrical current
supplied to the device. The device also might have more than one connection to
DC power. To remove all electrical current from the device, ensure that all
connections to DC power are disconnected at the DC power input terminals.
Statement 34:
CAUTION:
To reduce the risk of electric shock or energy hazards:
v This equipment must be installed by trained service personnel in a
restricted-access location, as defined by the NEC and IEC 60950-1, First
Edition, The Standard for Safety of Information Technology Equipment.
v Connect the equipment to a properly grounded safety extra low voltage
(SELV) source. A 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).
v Incorporate a readily available approved and rated disconnect device in the
field wiring.
v See the specifications in the product documentation for the required
circuit-breaker rating for branch circuit overcurrent protection.
v Use copper wire conductors only. See the specifications in the product
documentation for the required wire size.
v See the specifications in the product documentation for the required torque
values for the wiring-terminal screws.
Note: In Statement 34 above:
v Replace IEC 60950-1, First Edition with IEC 60950-1, Second Edition Amendment
1.
v The required circuit breaker rating is 20 amps.
DC power supply unit connectors and indicators
Each enclosure can contain two DC power supply units. Each power supply unit
can provide power to the whole enclosure.
The power supply units have the components that are shown in Figure 10 on page
13.
12 Storwize V5000 Gen2: Quick Installation Guide