LEGRAND 678 135 User manual

Active 73X X97 - 678 135
Passive 73X X98 - 678 136
Normally open (electrical latching) versions (Active type)
Normally closed (mechanical latching) versions (Passive type)
General features
Important :
It is essential to read and fully understand these instructions
before commencing installation.
Electricity is potentially dangerous :
If in any about the operation or installation of this device,
consult a qualified electrician.
The Legrand RCD safety socket range represents one of
the most comprehensive protection systems available on
the market today. Depending upon different application require-
ments, a product may be chosen that either remains latched
or, conversely, trips (unlatches) following a mains failure.
This characteristic can be an important criteria when selecting
the product type.
To illustrate this point, a normally open (electrically latched)
device trips in instances of power failure and is thus best sui-
ted for use with machinery incorporating electric motors, e.g.
hedge cutters, grinders, portable drills, etc. as unexpected
power restoration could otherwise cause the appliance to
suddenly restart when perhaps the operator was not in the
immediate vicinity.
Normally closed (mechanically latched) devices on the other
hand, are ideal for installation in floor boxes in commercial
premises as resetting a number of units after a power failure
would be both time consuming and inconvenient. Additionally,
where power is regularly shut down, the normally closed sockets
do not need to be manually reset.
Although RCD safety sockets provide enhanced user protection,
it should be remembered that they are neither designed to
prolong the life of dangerous installations nor encourage poor
working practices.
Guarantee
Legrand RCD socket outlets have been designed for long
and reliable service and as such are maintenance-free
(apart from periodical testing). In the unlikely event of a
fault developing within the Legrand RCD socket within
2 years of purchase, Legrand will, at its discretion, repair
or replace the socket. This guarantee is conditional on the
socket having been installed and used in accordance with
the instructions and information contained in this leaflet
and not having been tampered with or subjected to misuse
in any way. In all cases of complaint, proof of purchase
must be supplied.
Legrand will not be liable for any loss or damage resulting
from its negligence (other than for death or personal injury)
unless such loss or damage arises from the socket proving
defective (whether due to faulty design, workmanship,
materials or otherwise) while in consumer use.
This guarantee is in addition to and does not affect any
consumer statutory rights.
Supplied by :
Important :
This unit should be installed in compliance with the
latest edition of the I.E.E. Wiring Regulations
(or relevant legislation) and in accordance with
accepted industry practices.
If you are in doubt, consult a qualified electrician.
N0064FU9/05
LEGRAND ELECTRIC LTD
Arena Park
Dial Lane
West Bromwich
West Midlands
B 70 OEB-United Kingdom
Tel. : [phone] - Fax : [phone]
EAU
LEGRAND SNC
Po Box 61415 LOB15-office 303
Jebel Ali
Tel. : +(971). 4. 8816. 178 - Fax : +(971); 4. 8818. 145
N0064FU9/05
73X X97 - 678 135
73X X98 - 678 136
«
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Product characteristics
Front view Rear view
* Normally open versions : Red on 30 mA
Normally closed versions : Black on 30 mA
Features common to all versions :
1. Related operating voltage 230-250 V AC,
50/60 Hz frequency.
2. Double pole contacts with a minimum separation of 3mm
ensuring isolation of Live and Neutral supply.
3. Maximum current rating 13 A on single outlets
and a combined maximum of 16 A on twin outlets.
4. Conforms to BS 7288.
Features specific to normally open devices
(electrical latching) :
Tripping of the device will occur in the event of one or more of
the following circumstances : -
1. Detection of a residual current fault of a magnitude appropriate
to sensitivity of the RCD mechanism (30mA).
2. Depression of the test button.
3. Interruption of the Neutral supply.
4. Detection of pulsating DC fault currents.
5. Failure of the mains power supply for a period longer than
60 milliseconds. The tripping mechanism operates in the nor-
mal fashion before this current reaches 30mA.
Features specific to normally closed devices
(mechanical latching) :
Tripping of the device will occur in the event of one or more of
the following circumstances : -
1. Detection of a residual current fault of a magnitude
appropriate to sensitivity of the RCD mechanism (30 mA).
2. Depression of the test button.
4. Detection of pulsating DC fault currents.
Set(on) button
Test (off) button *
Red flag
Installation procedures
All flush mounting Legrand RCD safety sockets can be instal-
led in 35 mm depth backboxes.
Before commencing installation, ensure the main power
supply is safely disconnected at the consumer unit in order
to isolate the circuit. In the interests of safety, this device
should be installed by a qualified electrician according to
the latest I.E.E. Wiring Regulations. As a precautionary
measure, have the condition of the existing tails checked
if retro-fitting and rewire as necessary. The rating of the
fuse/MCB protection must not exceed 32 A, the normal ring
circuit rating.
Test procedures
With the device fixed to its wall box, verification of the safety
socket operation can commence.
After reconnecting the mains supply, press the transparent
“ON/SET” button which will result in the socket being switched
on. Confirmation of live status is achieved by the appearan-
ce of the red flag visible through the “ON/SET” button.
Pressing the “OFF/TEST” button* will cause the device to
trip and the red flag to disappear. If the flag remains red
after depression of the “TEST” button (and the mains supply
has been confirmed present), the unit must not be used as
this is
symptomatic of a fault in the device.
Under such circumstances, do not use the socket and
seek the advice of a qualified electrician as soon as
possible.
Assuming correct operation of the device, resetting is simply
a matter of pressing the red set button again. We recom-
mend that the device be tested (as above) prior to use or at
least once a month.
* Normally open versions : Red on 30 mA
Normally closed versions : Black on 30 mA
Important :
Disconnect this safety socket before wiring insulation tests
are carried out otherwise false readings will be obtained.
No attempt must be made to repair a safety socket suspec-
ted of being faulty. There are no user serviceable parts
within and evidence of tampering or other intervention will
invalidate the manufacturer’s guarantee.
Technical data summary
Nominal voltage : 230-250 AC, 50/60 Hz
Max. operating current : 16 A (combined total in
case of twin)
Rated trip current : 30 mA
Trip speed : < 200 milliseconds
at rated trip current
< 40 milliseconds
at 5 x rated trip current
Contacts : Double pole
(3 mm minimum gap)
Terminal capacity : 6 mm2
Short circuit withstand current : 1500 A
Conforms to BS 7288.
Trouble shooting
Safety socket
trips
Unplug
appliance
Safety socket
resets
Safety socket
won’t reset
Faulty appliance
or
lead connection
Repair or
replace as
necessary
Return
safety socket
to Legrand
Fault in
safety socket
Supply
fault
Seek assistance
of qualified
electrician
Normally open
versions only
Black
(neutral conductor)
Red
(live conduc tor)
Green/ yellow (earth conductor)
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