Siemens RL Instruction Manual page 24

I nstal l ation
Introduction
Type RL Low Voltage AC Power Circ uit Breakers may be
furnished for mounting in any one of three ways: ( 1) in metal­
enclosed switc hgear of the drawout type; (2) in individual
metal enclosures (drawout type); ( 3) for stationary mounting
in the user's own enclosure or switc hboard. All RL circuit
breakers are completely assembled, tested, and calibrated
at the factory in a vertical position and must be so installed to
operate properly. The user's primary connections must be
adequately braced against the effects of short circuit currents
to prevent overstressing the circ uit breaker terminals.
Receiving and Inspection of Damage
IMPORTANT: Do not accept the statement from any
driver that the damaged equipment was not properly
packaged by shipper.
Do not sign Bill of Lading without notation of visible
if
damage observed. Our equipment packaging meets the
rigid requirements established by the trucking industry.
You must obtain carrier inspection within 15 days of
receipt on damaged equipment.
Immediately upon receipt of this eq uipment, carefully remove
all packing braces. Examine parts and c heck them against
the packing list and note any damages incurred in transit. If
damage is disc losed, a carrier inspection must be arranged
for by consignee within 1 5 days of receipt of equipment. If
equipment is shipped F.O.B. D estination, the consignee must
obtain the original of the carrier inspection report and notify
Siemens immediately.
Two shipping methods are used with RL circuit breakers:
1 . Individually skidded with protec tive covering.
2 . Within a cubicle.
Note all caution tags, remove bloc king bolts, and open c irc uit
breaker contacts before installation.
Storage
Whenever possible, install circ uit breakers in their assigned
switchgear compartments for storage. Follow instructions
contained in the instruction manual for types R and SR Low
Voltage Metal-Enclosed Switc hgear, SG-3088 . When the c ir­
c uit breaker is stored separately, place the circuit breaker on
a sturdy pallet. Sec ure the circ uit breaker to the pallet. and
cover with polyethylene film at least 1 0 mils thick. Also ob­
serve the following:
1 . Indoor Storage - Whenever possible, store the c irc uit
breaker indoors. The storage environment must be c lean.
dry and free of such items as construction dust, c orrosive
atmosphere, mechanical abuse and rapid temperature
variations.
2 . Outdoor Storage - Outdoor storage is not recommended.
When no other option is available, the circuit breaker must
be completely covered and protected from rain, snow,
dirt and all other c ontaminants.
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3. Space Heating Space heating must be used for
indoor and outdoor
storage to prevent c ondensation and
corrosion. Space heaters of approximately 1 00 watts per
breaker are recommended. If the circ uit breakers are
stored inside their assigned switc hgear com partments,
?
an the switch gear is eq uipped with space heaters, the
sw1tchgear space heaters should be energized.
General
The RL Low Voltage AC Power Circuit Breaker is completely
adj usted, tested and inspected before shipment. However, a
careful check should be made to be certain that shipment or
storage has not resulted in damage or c hange of adjustment.
Circuit breakers and their enclosures should be installed in a
clean, dry, well-ventilated area in whic h the atmosphere is
free from destructive acid or alkali fumes. For stationary
breakers and custom enc losures, the factory should be con­
� ulted for minimum c learances and required ventilation open­
Ings.
Before installing, make certain that the circuit breaker con­
tacts are in the open position and that the closing springs are
!
sc harged . . Be sur � to
d
d1sconnect f1ngers w1th S1emens electncal contact lubricant
supplied with accessories.
Power circuit breakers operate at high
vol tages
mechanical parts which operate at high
speed.
When operated improperly, this equipment
will cause death, personal injury and
property damage
To av o i d elec t rical shoc k, burns and
entanglement in moving parts this equipment
must be installed, operated and maintained
only by qualified persons thoroughly familiar
with
drawin s.
Installation Sequence (and RemovaQ
IMPORTANT: Be certain that you check points 1a through
1f below before placing circuit breaker in compartment.
1 . Determine the correct switchgear compartment for each
circuit breaker by c hecking the One-Line Diagram and
Sc he matic D iagram furnished with the drawings. These
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draw1ngs show the following for each circuit breaker
compartment:
a. Circuit breaker Type (RL-800, RL-1600 etc .)
b. Trip "XFMR" or "SENSOR" rating.
c. Static Trip Type ( RMS-TS, RMS-TIG-TZ etc.)
d. Type of operator ( Manual Operator-MO or Electrical
Operator-EO)
e. Circ uit breaker wiring information.
f. Special accessories ( Undervoltage Trip, etc . )
both
2 . O n fused breakers, make sure trigger fuse linkage
reset. Breaker will remain trip free as long as this linkage
is tripped. Refer to Open Fuse Trip Device on Page 1 7.
3. If the circuit breaker was shipped separate from the
cubicle, remove the bloc king bolts, trip the circuit
lubricate pri � ary and secondary
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A DANGER
and have spring- loaded
the equipment, instruction manuals and
is
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