Additional Components For Rccbs; Remotely Controlled Mechanism (Rc) - Siemens SENTRON Manual
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Also See for SENTRON:
- Manual (224 pages) ,
- Configuration manual (80 pages) ,
- Instructions manual (76 pages)
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4.5
Additional components for RCCBs
4.5.1
Remotely controlled mechanism (RC)
Favored locations for remote-controlled operating mechanisms are spacious or not
continually manned work areas, such as water treatment plants or radio stations
as well as automated plants for energy and operations management.
Remotely controlled mechanisms are used for remote ON/OFF switching of
miniature circuit breakers with or without RC unit, RCCBs, RCBOs or flush-
mounting switches, and also allow local manual switching of these devices.
A tripped combination must be acknowledged prior to switching back on.
In the event of a fault, the device combination of the type Auto Reclose Device
(ARD) attempts to switch on again up to three times. If the fault is still present,
the combination remains disconnected. The remotely controlled mechanism has
an operating mode selector switch with the functions: "Locked", "Manual" and
"Remote switching".
Selector switch position:
OFF
For units with 177 - 270 V: Power to the remotely controlled mechanism
is switched off, blocked mechanically and can be sealed and/or locked.
RC OFF Only manual operation is possible.
RC ON
Both manual and remote actuation (except for the Basic 12 - 48 V
devices) is possible.
In the event that a device is tripped by a fault, the handle of the basic unit and
remotely controlled mechanism switch to the OFF position. If, depending on the
device version, the combination has been switched off, an attempt can be made to
switch it on again via ARD or remotely.
If the fault persists, the device combination is switched off and can only be
switched on again manually on site.
Suitable adapters must be ordered so that the remotely controlled mechanisms
can be combined with the residual current circuit breakers, miniature circuit
breakers, RCBOs and on/off switches.
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