Product Manual

Table Of Contents
1. Important Safety Instructions 7-2019
2 A052S254 (Issue 3)Copyright © 2019 Cummins Inc.
Follow these guidelines while working on or around electrical equipment.
Place rubber insulated mats on dry wood platforms over metal or concrete floors when working on
any electrical equipment.
Do not wear damp clothing (particularly wet shoes) or allow skin surfaces to be damp when handling
any electrical equipment.
Remove all jewelry when working on electrical equipment.
Wear safety glasses whenever servicing the transfer switch.
Do not smoke near the batteries.
Do not work on this equipment when mentally or physically fatigued, or after consuming alcohol or
any drug that makes the operation of equipment unsafe.
WARNING
Incorrect service or replacement of parts can result in death, severe personal injury, and/or
equipment damage. Service personnel must be qualified to perform electrical and/or mechanical
service.
1.3 Electrical Shock and Arc Flash Can Cause Severe
Personal Injury or Death
High voltage in transfer switch components presents serious shock hazards that can result in severe
personal injury or death. Read and follow these suggestions:
The Operator must always keep the transfer switch covers installed.
Make sure only authorized personnel remove the covers.
All installation, service, and adjustments to the transfer switch must be performed only by an
electrician or authorized service representative.
1.3.1 Utility Supply and Isolation
It is the sole responsibility of the customer to provide AC power conductors for connection to load
devices and the means to isolate the AC input to the terminal box; these must comply with local
electrical codes and regulations. Refer to the wiring diagram supplied with the generator set.
NOTICE
Local electrical codes and regulations (for example, the National Electrical Code or the Canadian
Electrical Code) may require the installation of a disconnect means for the generator set, either
on the generator set or where the generator set conductors enter a facility.
The utility disconnecting device is not provided as part of the generator set or automatic transfer switch,
and Cummins Inc. accepts no responsibility for providing the means of isolation.
1.3.2 Utility-to-Generator Set Applications
If the cabinet must be opened for any reason:
1. Press the stop button on the local control at the generator set.
2. Turn off AC power supplying the battery charger and all accessories.
3. Disconnect the starting batteries of the generator set or sets, removing the ground (-) lead first.