Product Manual A

3. Pre-Installation Considerations 7-2018

FIGURE 2. CUMMINS TRANSFER SWITCH (RA SERIES)

Before beginning the installation of the transfer switch, verify that the unit was

correctly selected. Check the following features:

• Specifications (voltage, amperage, frequency, poles, and phases)

• Enclosure (indoor vs. outdoor)

• Model

Refer to the RA Series Transfer Switch Owner Manual (A046S594) for more

detailed information. The RA Series transfer switch is the recommended ATS for

use with these generators.

Choosing a Transfer Switch

This section includes block diagrams showing partial or full load coverage for the

Cummins RA Series transfer switches. For more information, see the RA Series

RA112L1 Automatic Transfer Switch Owner Manual (A052S254) or the RA Series

Automatic Transfer Switch Owner Manual (A046S594) (models RA112N3,

RA212N3, RA112S3, RA212S3, RA412N3, and RA412S3).

NOTICE

These generator sets can be used with either service entrance transfer

switches or non-service entrance transfer switches.

NOTICE

If the load exceeds the generator set rating, it may be necessary to use

Cummins’ load management kit (A051C329). Cummins' load management kit

(A051C329) only applies to air cooled products.