Brand：Allen-Bradley Model number: 1786-RPA
Colour：new Warranty: 12 months
Lead Time：3-day working day Country of origin: USA
Price: Please contact us Product weight：1.7kg
Shipping Port: Xiamen, China
Payment: Bank of Chicago, Bank of Singapore
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A-B 1786-RPA Industrial control module machine spare parts
Application Information
Circuit Voltage
The Bulletin 1489-M circuit breakers are rated by voltage
class. Applications should not exceed the listed voltage and
current range.
Circuit Frequency
The Bulletin 1489-M circuit breakers may be applied to
frequencies of 50 Hz and 60 Hz without derating. For
applications above 60 Hz, contact Rockwell Automation with
specific application information for the derating of the circuit
breakers.
Available Short Circuit Current
The Bulletin 1489-M circuit breakers should only be applied
in those applications in which the available short-circuit (or
fault) current is less than or equal to 10 kA (US/Canada) and
15 kA (IEC).
Application Considerations
Tripping Characteristics
The trip curve characteristics are shown on the following
pages. The trip bands shown for each breaker represent
current tripping limits for a circuit breaker and are within the
limits established by UL.
The standard tripping characteristic for Bulletin 1489-M is
Type C. Type C has a magnetic trip activated at 5-10 times
the rated current of the circuit breaker. The reference
temperature for the thermal tripping characteristics is 30 °C.
The Type C characteristic will suit most applications.
In rare occurrences when the Type C characteristic does not
fully meet the application, Type D magnetic trip
characteristic is available, allowing for transients
approximately twice as high as the standard Type C.
For a specific current at 30 °C, a circuit breaker will open
("clear the circuit") automatically at some total time that will
be within the minimum and maximum time shown on the
curves. For example, a one-pole, 15 A, Bulletin 1489-M circuit
breaker trips in not less than 1 s and not more than 200 s on
a 30 A current. Because the UL standard defines this time
spread, users should not specify exact tripping time. The
lower current portion of the curves (upper left) depicts th
1768-ENBT module
1734-OB8S
1734-4IOL
1734-IE2V
1734-IB8S
1747-L553
1756-L72
1756-OF8
1769-IF4
1769-L18ERM-BB1B
1734-OE2V
1734-OW4
1734-OB8E
1783-US5T
25C-D2P3N114
1734-IT2I
1734-WS
1606-XLS480E-3C
1783-US8T
1794-TB3
1794-TB32
1768-p3
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