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參數(shù)資料
| 型號(hào)： | 2010 |
| 英文描述： | BJT |
| 中文描述： | 雙極型晶體管 |
| 文件頁數(shù)： | 129/345頁 |
| 文件大?。?/td> | 14075K |
| 代理商： | 2010 |
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Germany (0 91 87) 10-0 - USA (847) 827-7600 - UK (01296) 420336 - www.etacbe.com
Distribution rail X2210-K...
E-T-A distribution rails ensure ease of expansion and retrofit without
the need to disconnect the system. Safe operation with power on is
ensured by the fully insulated plug-in design, enabling industry demands
for trouble-free operation to be satisfied. Major benefits of this well-
proven system include high reliability and user convenience.
E-T-A distribution rails meet the needs of many power supply systems
including the 7R design of the German telecommunications market.
Even where space is at a premium E-T-A circuit breakers type 2210-
S291-P9M2-410005-.., for both AC and DC use, will protect all
downstream electrical equipment from overcurrent and short-circuits
as well as providing protection against electrical shock hazards.
The Bw7R type 2 configuration can be equipped with one standard unit
and one modified version for remote supply devices. Additional versions
of the standard type are suitable both for telecommunications and
process control and automation.
Description
Features
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Application
Telecommunications
Terminal rails of the Bw7R type 2 design can be connected to power
supplies providing AC 230 V (max. 275 V) or DC 60 V (max. 75 V).
A back-up fuse with a max. rating of 100 A should be connected.
Power distribution is by means of 16 outputs which are protected by
E-T-A circuit breakers.
Expansion is possible as required.
Power supply units of telecommunication equipment are typically
connected downstream.
- X2210-K0116 B
is designed to power system units
- X2210-K0212 F
is designed for remote feeds
Both terminal rails can be mounted in Bw7R racks, one unit requiring
a space of 500 mm.
Process control, automation and telecommunications
Initially designed for Bw7R (vertical mounting), the terminal rails are
also suitable for 19" control cabinets and other designs.
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Distribution rails
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Fully insulated design
Absolutely safe in operation even when retrofitted, as live parts
cannot be touched.
Ease of mounting
Fastening of the assembly is by means of two bolts only.
Ease of electrical installation
The connection of only plus, minus and signal cable is required to
operate the distribution rail for 16 outs. No further wiring is necessary.
Cost-effective expansion
Distribution rails can readily be installed in multiples. Safe electrical
connection of several rails, even during systems operation, is by use
of coupling pins.
No costly system downtime
Live components need not be disconnected when the system is
expanded.
Safe connection of the supply line
Plug-in intermediate elements provide safe connection of the supply
line independent of its position, thereby minimising installation
difficulties.
Ease of access
Distribution rails can be mounted from the front. The load lines which
are preconnected to the adapter plug can be easily inserted in the
cable space obviating the need for costly threading.
Compact design
Optimum utilisation of the space available as circuit breakers,
distribution rail and accessories have been designed in close
cooperation with users and system designers.
Electrical safety
The system is suitable for voltages up to AC 275 V or DC 75 V (max.
100 A back-up fuse; 25 mm
2
connecting cable).
Insulation co-ordination in conformance with IECF 664 and 664A.
Distribution rail X2210-K0316 E
Positions 8 and 9 of this type are physically isolated so that two
independent distribution rails with 8 outputs each are available in one
housing.
The signal contact rail is not isolated.
Feed-in from both sides.
Two separate power supplies which can carry different potentials
(e.g. DC 65 V; AC 230 V) are accommodated on 500 mm spacings.
Terminal strip X2210-K0404 E to X2210-K0404 E
A compact version of the distribution rail is available for applications
requiring small distribution rails with up to 9 outputs only but
providing the same benefits as the standard version.
Feed from one side allows the supply of 4 to 9 outputs. The compact
distribution rail can be used where space is at a premium because its
length may be varied.
Group signalisation
The circuit breakers suitable for the distribution rails comprise an
auxiliary contact closing when the main contact opens.
All auxiliary contacts are placed above the distribution rail, parallel
between ground and the group signalisation rail.
Single signalisation
Single signalisation can be provided by means of a modified
intermediate element. The ground connection generally required in
telecommunication systems is obviated.
”Signal potential“ is applied to the terminal of the intermediate
element as soon as the circuit breaker trips. The system manufacturer
should however provide separate signal lines (max. 16) which should
be connected to the ground terminal of the intermediate element.
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