Emerson 3U MP2-220N user manual Electrical Installation Considerations, Electrical Connections

Alternate Hardwire Installation

4.0ALTERNATE HARDWIRE INSTALLATION

4.1Electrical Installation Considerations

! WARNING

This unit must be installed by competent electrical personnel and wired in accordance with local/national electrical codes.

Review this entire manual and the installation instructions in this section before beginning the installation.

Before installing, open all branch circuit power at the nearest disconnect, turn the UPS off, and disconnect all cords to and from the UPS.

The utility input supply cable must be connected to the unit via a wall-mounted circuit breaker. The UPS output port must also be protected with a circuit breaker connected to the load, rated to carry the input current, and be capable of breaking the maximum prospective short circuit current of this branch circuit. The breaker must be mounted within six feet of the UPS and be readily accessible to the operator. Please refer to Table 2 for breaker specifications.

4.1.1Conduit Entry and Wiring Access Doors

The side and rear of the 3U POD provide alternate conduit entry points for both UTILITY and LOAD connections.

SIDE VIEW

REAR VIEW

4.2Electrical Connections

The cable sizes and distribution methods used during installation are subject to local and national electrical codes of practice and are therefore not listed in this manual. Table 2 shows the standard current ratings.

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