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2 INTRODUCTION
The Vertiv™ MPH2™ Rack PDU is an intelligent, high-availability line of managed rack PDUs. It offers
remote monitoring and control capabilities as well as environmental sensors with multiple power input
selections and output configurations.
2.1 Metering Levels
Four types of rack PDUs are available that provide metering and status of important electrical parameters
for input, branch and receptacle levels, as well as integration with environmental sensors. The available
information varies by type of rack PDU. See
Model Types
on page 8 for descriptions.
2.2 Mounting
Rack PDUs are available for mounting in vertical and horizontal configurations in standard racks or
network enclosures.
Because the power cord is connected at the end of the vertical-mount (0-U) models, the rack PDUs may
be oriented to accommodate top or bottom cable-entry into the rack.
2.3 Locking Receptacles - IEC Type Only
Locking receptacles are available on models with IEC receptacles. The locking feature requires optional
locking power cords to be installed on devices powered by the .rack PDU.
The receptacles require no modification to function properly with non-locking power cords.
2.4 Overcurrent Protection
All rack PDU units with an input current rating greater than 20A feature 100% rated hydraulic-magnetic
breakers. For all UL-listed models, the maximum cord and plug-connected loading is limited to 80% of the
input current rating, as required by UL and in accordance with the National Electric Code.
Low-profile circuit breakers are used on all 0U rack PDUs with two or three branch circuits. Standard-
profile circuit breakers are used on horizontal models and on certain vertical models that have six branch
circuits or have a 240 VAC rating. Each type of circuit breaker is a flush-mount, rocker style (see
Manually
Changing a Circuit Breaker State
on page 36).
2.5 Integrated Monitoring and Management
The factory-installed Vertiv™ RPC2™ communications module permits managing the Vertiv™ MPH2™
Rack PDU over a secure web page and SNMP (Simple Network Management Protocol) based network
management system. The RPC2 module permits interconnecting up to four rack PDUs in a Rack PDU
Array™ configuration for monitoring and management.
NOTE: Do not interconnect RPC-1000 modules with RPC2 modules in an array. They are incompatible
and will not interoperate.
NOTE: Refer to the RPC2 Communications Module Installation/User Guide, SL-20841, for detailed
instructions on installing and using the RPC2 communication module. The document is available at:
http://www.VertivCo.com.
A rack PDU can be monitored locally through its on-board LCD, through a Web interface or through an
optional display module, the RPC BDM (Part# RPCBDM-1000). The display module connects directly to
Vertiv | Vertiv™ MPH2 Rack PDU Installer/User Guide
5
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