CLH Circuit Breakers

HORIZON
Bulletin No. 48049-103-61
03/01
Cedar Rapids, IA, USA
ECN K450
CLH Circuit Breakers
1
Instruction Bulletin
© 1996–2001 Schneider Electric All Rights Reserved
Retain for future use.
WIRE INSTALLATION
INDIVIDUALLY-MOUNTED CIRCUIT
BREAKER INSTALLATION
NOTE: See last page for mounting dimensions.
HAZARD OF ELECTRIC SHOCK, BURN,
OR EXPLOSION
•This equipment must be installed and
serviced only by qualified electrical
personnel.
•Turn off all power supplying this equipment
before working on or inside equipment.
•Always use a properly rated voltage
sensing device to confirm power is off.
•Replace all devices, doors and covers
before turning on power to this equipment.
Failure to follow these instructions will
result in death or serious injury.
DANGER
HAZARD OF EQUIPMENT DAMAGE
•Wire strands interfering with wire binding
screws can cause false torque indication.
•Do not allow wire strands to interfere with
threads of wire binding screws.
Failure to follow these instructions can
result in equipment damage.
CAUTION
HAZARD OF COVER SEPARATION UNDER
SHORT-CIRCUIT CONDITIONS
Mount circuit breaker as shown in these
instructions to prevent cover separation.
Failure to follow this instruction can result in
death, serious injury or equipment damage.
WARNING
1. Turn off all power supplying this equipment before working on or inside
equipment.
2. Turn off circuit breaker.
3. See circuit breaker faceplate label or instructions with optional lugs for wire
size and torque.
Figure 1: Wire Installation
Figure 2: Mounting
Strip Length 1-3/8 in.
[35 mm]
06603015
06603008
06603009
Pan-mounted Circuit Breaker Bus-mounted Circuit Breaker

CLH Circuit Breakers 48049-103-61
Instruction Bulletin 03/01
© 1996–2001 Schneider Electric All Rights Reserved
2
06303003
Brown Leads Black Leads
Undervoltage Trip Shunt Trip
“A” Contact “B” Contact
Yellow Lead Striped Lead Blue Lead Red Lead Red Lead
Circuit Breaker OFF or Tripped Circuit Breaker Tripped
“A” Contact “B” Contact
Yellow Lead Striped Lead Blue Lead Red Lead Red Lead
Auxiliary Switch Alarm Switch
FACTORY-INSTALLED ACCESSORIES
If circuit breaker has factory-installed accessories,
refer to label on circuit breaker for electrical
specifications and lead colors.
CIRCUIT BREAKER REMOVAL
Remove circuit breaker in reverse order of
installation.
HAZARD OF ELECTRIC SHOCK OR BURN
Turn off all power supplying this equipment
before working on or inside equipment.
Failure to follow this instruction will result
in death or serious injury.
DANGER
CIRCUIT BREAKER OPERATION
Press push-to-trip button once a year to exercise
circuit breaker.
Figure 4: Circuit Breaker Operation
ON
Tripped
OFF
Reset
Push-to-trip Button Magnetic Trip Adjustment
06603016
Figure 3: Electrical Specifications and Lead Colors

48049-103-61 CLH Circuit Breakers
03/01 instruction Bulletin
3
© 1996–2001 Schneider Electric All Rights Reserved
TROUBLESHOOTING
If problems occur during installation, refer to the
following guide. If trouble persists, contact the
local field office.
CONDITION POSSIBLE CAUSES SOLUTION
Circuit breaker fails to stay closed. 1. Magnetic trip adjustment too low.
2. Undervoltage trip not energized.
3. Shunt trip energized.
4. Short circuit or overload on system.
1. Adjust magnetic trip adjustment screw.
2. Energize undervoltage trip.
3. Deenergize shunt trip.
4. Check system for short circuit or overload.
Circuit breaker trips, but no short circuit or overload is
evident. 1. Magnetic trip adjustment too low. 2. System voltage below undervoltage trip setting. 1. Adjust magnetic trip adjustment screw. 2. Check system for low voltage.
Push-to-trip button will not trip circuit breaker. Circuit breaker already tripped or in OFF position. Move circuit breaker handle to reset then to ON
position. Press push-to-trip button.
HAZARD OF ELECTRIC SHOCK OR BURN
Disconnect all power to electrical equipment
before installing or removing circuit breaker or
lugs.
Failure to follow this instruction will result
in death or serious injury.
DANGER

Electrical equipment should be serviced only by qualified personnel. No
responsibility is assumed by Schneider Electric for any consequences arising out of
the use of this material. This document is not intended as an instruction manual for
untrained persons.
CLH Circuit Breakers 48049-103-61
Instruction Bulletin 03/01
Schneider Canada Inc.
19 Waterman Avenue, M4B 1 Y2
Toronto, Ontario
1-800-565-6699
www.schneider-electric.ca
© 1996–2001 Schneider Electric All Rights Reserved
4
DIMENSIONS
06603017
5.98
[152]
4.27
[109]
3.75
[95]
9.25
[235]
11.00
[279]
0.87
[22]
1.99
[51] 2.00 [51]
2.89
[73]
0.26
[7]
3.90
[99]
4.06
[103]
4.30
[109]
5.84
[148]
2.81
[71]
2.06
[52]
0.96
[24]
2.00
[51] 2.00
[51]
0.98
[25]
(4) #12-24 x 3-1/4 in. pan-head mounting
screws, torque to 30 to 40 lb-in (3.4 to 4.5 N•m)
Dimensions: in.
[mm]

HORIZON
Bulletin No. 48049-103-61
03/01
Cedar Rapids, IA, É-U
ECN K450
Disjoncteurs CLH
1
Directives D’utilisation
© 1996–2001 Schneider Electric Tous droits réservés
À conserver pour usage ultérieur.
INSTALLATION DES FILS
INSTALLATION D’UN DISJONCTEUR À
MONTAGE INDIVIDUEL
REMARQUE : Pour plus amples renseignements
sur les dimensions de montage, consulter la
dernière page.
RISQUE D’ÉLECTROCUTION, DE
BRÛLURES OU D’EXPLOSION
• L’installation et l’entretien de cet appareil ne
doivent être effectués que par du personnel
qualifié.
•Coupez toute alimentation de cet appareil
avant d’y travailler.
•Utilisez toujours un dispositif de détection de
tension à valeur nominale appropriée pour
s’assurer que l’alimentation est coupée.
•Replacez tous les dispositifs, les portes et
les couvercles avant de mettre l’appareil
sous tension.
Si ces précautions ne sont pas respectées,
cela entraînera la mort ou des blessures
graves.
DANGER
RISQUE DE DOMMAGES MATÉRIELS
•Les torons du conducteur qui s'engagent
dans la vis de fixation de fil causeront une
indication erronée du couple.
•Ne laissez pas les torons du conducteur
s’engager dans les filetages des vis de
fixation de fil.
Si cette précaution n’est pas respectée,
cela peut entraîner des dommages
matériels.
ATTENTION
RISQUE DE SÉPARATION DU COUVERCLE
EN CAS DE COURT-CIRCUIT
Montez le disjoncteur tel qu’indiqué dans ces
directives pour empêcher la séparation du
couvercle.
Si cette précaution n’est pas respectée, cela
peut entraîner la mort, des blessures graves
ou des dommages matériels.
AVERTISSEMENT
1. Couper toute alimentation de cet appareil avant d’y travailler.
2. Couper l’alimentation du disjoncteur.
3. Voir l’étiquette de la plaque avant du disjoncteur ou les directives fournies
avec les cosses optionnelles pour obtenir le calibre des fils et le couple.
Figure 1 : Installation du câble
Figure 2 : Montage
Longueur du
dénudage 35
[1-3/8]
06603015
06603008
06603009
Disjoncteur monté sur cuve Disjoncteur monté sur bus