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RATING
32 A
40 A
48 A
To connect a ground-strap to the rack:
1.
Insert a spring nut into the rack frame near the grounding point on the MPH2™ Rack PDU (see
Tool-less mounting
2. Attach a ground wire to the rack with a screw, washer and lock washer. The screw is secured to
the rack's frame with a spring nut.
3. Use a second field-supplied screw, washer and lock washer to secure the ground wire to the
MPH2™ Rack PDU. The connection point is marked with an earth-ground symbol.
NOTE: The area beneath the lock washer should be void of paint or corrosion.
Figure 3.8 Rack grounding-strap connection
NUMBER
DESCRIPTION
1
Ground-wire connection screw, M6 x 12
2
Washer
3
Ground-wire connector (to MPH2™ Rack PDU)
3.3.6 Recommended Input Branch Circuit Protection
A field-provided external circuit breaker must be installed upstream of the MPH2™ Rack PDU. The circuit
breaker must be sized according to the input rating of the PDU. The circuit breaker rating must meet the
values in the following table.
The external circuit breaker serves as the primary input power disconnect for the MPH2™ Rack PDU.
Vertiv | Vertiv™ MPH2 Rack PDU Installer/User Guide
WIRE SIZE
UL LISTED
CE MARKED
6.0 mm
—
6 AWG
—
6 AWG
—
on page 16 for inserting the spring nut).
WORLD-WIDE (WW)
2
—
—
—
NUMBER
DESCRIPTION
4
Lock washer
Ground-wire connection on MPH2™ Rack PDU
5
(location may vary)
6
Ground-wire connector (to rack)
20
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