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48049-251-01
M-frame Circuit Breaker
s
02/2006
© 2003–2006 Schneider Electric All Rights Reserved
9
EN
G
L
ISH
TESTING
Circuit breaker trip unit operation can be tested using primary injection
testing or the full-function test kit.
NOTE: Older ET1.0 trip units have test port covered. Cut label as described
in full-function test kit instructions to access the trip unit port.
TROUBLESHOOTING
If problems occur during installation, refer to information below. If trouble
persists, contact the field office.
OPERATION
Figure 16:
Pre
ss
Pu
s
h-to-trip Button
Press push-to-trip button (A) at installation to
check operation. Repeat once a year to exercise
circuit breaker.
NOTE: Push-to-trip button will not trip circuit
breaker if it is in the off (O) position.
TRIP UNIT ADJUSTMENT
Adjust instantaneous trip (Ii) by adjusting switch
(A).
Figure 17:
Adju
s
t In
s
tantaneou
s
Trip Switch
06123226
A
setting
x In
4
5 6 7
10
3
2
Ii
Instantaneous
8
ET 1.0
06123231
06123091
A
DANGER
HAZARD OF ELECTRIC SHOCK,
EXPLOSION OR ARC FLASH
• Apply appropriate personal protective
equipment (PPE) and follow safe electrical
work practices. See NFPA 70E.
• This equipment must be installed and
serviced only by qualified electrical
personnel.
• Troubleshooting may require energizing
auxiliary devices with a test power supply.
Make sure that the power supply is off before
connecting or disconnecting it to the auxiliary
device.
• Do not touch the terminals of the device
during the test.
Failure to follow thi
s
in
s
truction will re
s
ult
in death or
s
eriou
s
injury.
Condition
Po
ss
ible Cau
s
e
s
Solution
Circuit breaker fails to stay
closed.
1. Trip adjustment set too low.
2. Undervoltage trip not
energized.
3. Shunt trip energized.
4. Short circuit or overload on
system.
1. Adjust trip setting.
2. Energize undervoltage trip.
3. De-energize shunt trip.
4. Check system for short
circuit or overload.
Circuit breaker trips, but no
short circuit or overload is
evident.
1. Trip adjustment set too low.
2. Voltage is below undervoltage
trip setting.
1. Adjust trip setting.
2. Check system for low
voltage.
Push-to-trip button will not
trip circuit breaker.
Circuit breaker already tripped or
off (O).
Move circuit breaker handle to
reset, then to on (I).
Circuit breaker cannot be
opened manually.
Damage to current path.
Contact local field office.
Содержание sc200
Страница 5: ...DOC023 53 80040 sc200 Controller 01 2014 Edition 7 User Manual ...
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Страница 267: ...Figure 1 2 Typical Communications Wiring Scheme 1 5 ...
Страница 268: ...Figure 1 3 Signal Boost Sensor Diagram 1 6 ...
Страница 270: ...Figure 2 1 Typical Communication Cable Wiring for Signal Boost Option 2 2 ...
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Страница 433: ...UPS MAINTENANCE Eaton 9130 UPS 700 3000 VA User s Guide S 164201718 Rev 3 www eaton com powerquality 74 ...
Страница 459: ...SPECIFICATIONS Eaton 9130 UPS 700 3000 VA User s Guide S 164201718 Rev 3 www eaton com powerquality 100 ...
Страница 465: ...TROUBLESHOOTING Eaton 9130 UPS 700 3000 VA User s Guide S 164201718 Rev 3 www eaton com powerquality 106 ...
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Страница 647: ... 2014 Pentair Equipment Protection PH 763 422 2211 hoffmanonline com 87563688 Rev J P N 64303001 CONCEPT ...
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Страница 673: ...Model 6 Motor Control Centers Class 8998 Instruction Bulletin 80459 641 01E 10 2012 Retain for future use ENGLISH ...
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