I.L. 16913A
FILE 29-900
Instructions for Combination Bypass Isolation and Transfer Switches
100 - 1000 Amps
Effective July 2007 Supercedes I.L. 16913 dated February 1991
APPLICATION
The Cutler-Hammer combination Bypass Isolation and
Transfer Switches are listed under Underwriters’
Laboratories UL 1008 and CSA C22.2 No. 178 Standard
for Safety for Automatic Transfer Switches. The power
contact assemblies utilized in the ATSBI switches are
also covered under UL489 and CSA C22.2 No. 5 Standard
for Safety for Circuit breakers.
SAFETY PRACTICES
THE CUTLER-HAMMER COMBINATION BYPASS
ISOLATION AND TRANSFER SWITCH HAS BEEN
DESIGNED AND MANUFACTURED WITH BUILT-IN
INTERLOCKS AND SAFETY FEATURES INTENDED TO
PROVIDE SAFE AND PROPER OPERATING SEQUENCES.
TO PROTECT PERSONNEL ASSOCIATED WITH THE
INSTALLATION, OPERATION AND MAINTENANCE OF
THIS EQUIPMENT THE FOLLOWING PRACTICES MUST
BE FOLLOWED:
•
Only qualified persons, as defined in the national
Electrical Code, who are familiar with the installa-
tion and maintenance of low voltage circuits and
equipment should perform any work associated
with this equipment.
•
COMPLETELY READ AND UNDERSTAND THESE
INSTRUCTIONS before attempting any installation,
operation, maintenance, or modification of this
equipment.
•
ALWAYS TURN OFF AND LOCK OUT THE POWER
SOURCE(S) FEEDING THIS EQUIPMENT PRIOR TO
PERFORMING ANY INSTALLATION, MAINTENANCE,
OR MODIFICATION OF THIS EQUIPMENT. Failure
to do so could result in electrical shock leading to
death, personal injury, or property damage.
WARNING
