2
Instruction.Leaflet.
IL 33-LGH-3
Effective September 2010
Digitrip Retrofit System for the ITE
LG-3000 (Frameless) Circuit Breaker
EaTon CoRpoRaTIon www.eaton.com
WARNING
POWER CIRCUIT BREAKERS ARE EQUIPPED WITH HIGH SPEED, HIGH
ENERGY OPERATING MECHANISMS. THE BREAKERS AND THEIR
ENCLOSURES ARE SIGNED WITH SEVERAL BUILT-IN INTERLOCKS AND
SAFETY FEATURES INTENDED TO PROVIDE SAFE AND PROPER OPERATING
SEQUENCES. TO PROVIDE MAXIMUM PROTECTION FOR PERSONNEL
ASSOCIATED WITH THE INSTALLATION, OPERATION, AND MAINTENANCE
OF THESE BREAKERS, THE FOLLOWING PRACTICES MUST BE FOLLOWED.
FAILURE TO FOLLOW THESE PRACTICES MAY RESULT IN DEATH,
PERSONAL INJURY, OR PROPERTY DAMAGE.
Safety Precautions
•.
Only.qualified.persons,.as.defined.in.the.National.Electric.Code,.
who.are.familiar.with.the.installation.and.maintenance.of.power.
circuit.breakers.and.their.associated.switchgear.assemblies.
should.perform.any.work.associated.with.these.breakers .
•.
Completely.read.and.understand.all.instructions.before.attempting.
any.installation,.operation,.maintenance,.or.modification.of.these.
breakers .
•.
Always.turn.off.and.lock.out.the.power.source.feeding.the.breaker.
prior.to.attempting.any.installation,.maintenance,.or.modification.
of.the.breaker ...Do.not.use.the.circuit.breaker.as.the.sole.means.
for.isolating.a.high.voltage.circuit ..Follow.all.lockout.and.tagging.
rules.of.the.National.Electric.Code.and.all.other.applicable.codes,.
regulations,.and.work.rules .
•.
Do.not.work.on.a.closed.breaker.or.a.breaker.with.the.closing.
springs.charged ...Trip.(open).the.breaker.and.be.sure.the.stored.
energy.springs.are.discharged.before.performing.any.work ...The.
breaker.may.trip.open.or.the.charging.springs.may.discharge,.
causing.crushing.or.cutting.injuries .
•.
For.drawout.breakers,.trip.(open),.and.then.remove.the.breaker.to.
a.well-lit.work.area.before.beginning.work .
•.
Do.not.perform.any.maintenance:.including.breaker.charging,.clos-
ing,.tripping,.or.any.other.function.which.could.cause.significant.
movement.of.the.breaker.while.it.is.on.the.extension.rails ...Doing.
so.may.cause.the.breaker.to.slip.from.the.rails.and.fall,.potentially.
causing.severe.personal.injury.to.those.in.the.vicinity .
•.
Do.not.leave.the.breaker.in.an.intermediate.position.in.the.switch-
gear.cell ...Always.leave.it.in.the.connected,.disconnected,.or.
(optional).test.position ...Failure.to.do.so.could.lead.to.improper.
positioning.of.the.breaker.and.flashover,.causing.death,.serious.
personal.injury,.and./.or.property.damage .
•.
Do.not.defeat.any.safety.interlock ...Such.interlocks.are.intended.
to.protect.personnel.and.equipment.from.damage.due.to.flash-
over.and.exposed.contacts ...Defeating.an.interlock.could.lead.to.
death,.severe.personal.injury,.and./.or.property.damage