British General NEXUS MC554 RCD Operating instructions

13 AMP RCD FUSED CONNECTION UNIT
Product Images
MC554 RCD
Brief Description of Products Features
Packaging Information
mc554rcd
mc554rcd
Cat.No Description Packaging Type Pack Quantity Barcode
Product Inner Box Outer Box Each Inner Box Outer Box Individual Inner Box Outer Box
Weights and Dimensions
Cat.No Description Dimension ( W x L X H ) unit : cm Weight (g) CBM (m³)
Product Inner Box Outer Box Each Inner Box Outer Box Individual Inner Box Outer Box
Technical Specifications ( MC554RCD products)
Standard(s)
No
3 x 2.5mm² 2 x 4mm² 1 x 6.0mm²
30mA
13 Amp 250V~
BS 1363 Part 4 & BS 7288
No
81.5mm x 81.5mm x 51mm
Rating
Trip current
Terminal Capacity
Covered by RoHS directive
Covered by WEEE directive
Size
1
MC554RCD
Line Diagrams
A rugged, scratch resistant range, suitable for everyday use in commercial and industrial
environments.
Manufactured in heavy gauge steel and finished with epoxy powder coating.
Stylish modern profile
Colour coded terminals for easy installation
Cable entry in front face with removable blanking piece and reversible
cord grip.
Latching type

Installation Information
FROM SUPPLY
FROM LOAD
EARTH NEUTRALLIVE
EARTH
NEUTRALLIVE
SAFETY RCD FUSED CONNECTION UNIT
Connect the
cables as
shown in the
diagram.
SAFETY RCD FUSED CONNECTION UNIT WITH FLEX OUTLET
1. Unscrew the two cord-grip screws and remove the blanking piece.
2. Prepare the flexible cable from the appliance as shown in the diagram below.
3. For flexible cable less than 6mm in diameter reverse the cord-grip so that the
raised rib is in contact with the flex. Ensure the cable sheath is securely clamped
using the cord-grip, as shown in the wiring diagram. Connect the wires to the
correct terminal in accordance with the diagram on the right.
* Note
This product can also be used in "hard" wire installation. The blanking plug
must be left in place, and the cable clamp is not used when there is no
external flexible cable.
REPLACING THE FUSE
1. Using a flat bladed screw-driver, carefully leaver open the fuse carrier.
2. Pull the carrier out and replace the fuse.
Note - the fuse carrier cannot be fully removed from the product.
3. Fit a new fuse (to BS1362) and push the carrier home so it sits flush with the
surface of the faceplate.
If the new fuse fails again, check the connected appliance as it
may be faulty or the total load of 13 Amps, 3120 Watts has been
exceeded.
For a 3 Amp connection unit the total load should not exceed 720 Watts.
If in doubt consult a qualified electrician
9.
DO READ THESE OPERATION INSTRUCTIONS AND
STRICTLY OBSERVE THE TEST PROCEDURE AFTER INSTALLATION
AND WHEN CHANGING THE FUSE
TEST PROCEDURE
Stage 1: Insert the appropriate BS1362 fuse in to the RCD Spur.
Stage 2: The RED indicator will normally show in the CLEAR
window. If it does not, press RESET (orange) button and the
RED indicator should appear.
Stage 3: Press the TEST button.
The RED indicator will disappear from the CLEAR window
Stage 4: Press the RESET button.
The RCD has now been set for safe use provided the RED
indicator shows in the CLEAR window.
Operating Instructions
SAFETY RCD
FUSED CONNECTION UNIT
WITH FLEX OUTLET
1. Release the faceplate retaining screws and support the product as you remove
it from the wall.
2. It is essential that the new product is wired up in the same way as the old one.
3. The simplest way is either to label each conductor with the location of the
terminal to which it connects as you release it or to transfer one conductor at a
time to the corresponding terminal on the new product.
(Alternatively refer to the appropriate wiring diagrams for guidance)
4. Before refixing the new product, double check your connections.
5. Place the product into the wall box, ensuring that no wires are trapped.
6. Once you are sure that all work has been completed correctly,
replace the fuse for the circuit, switch the power back on, and test.
IF USING THE NEW PRODUCT TO REPLACE AN OLD ONE
WHEN INSTALLING FROM NEW
1. Select the appropriate size of mounting box (metal or patress) for either flush of
surface mounting.
2. Ensure that the mounting box is free of any plaster lumps and projecting screws
in the central areas of the box.
3. Always use cable of the correct rating and type.
4. Route the cable through the most suitable entry point of the mounting box. If a
metal box is used, ensure that a protective cable grommet is fitted.
5. Carefully arrange the wiring so as to lie along the edges of the product or box,
keeping the central area clear.
6. To assist with the correct installation of this product please consult the
appropriate wiring diagram. When connecting the new accessory ensure that only
the bare end of the wire enters the terminal, and no bare wires are visible. Always
tighten the terminal screws securely.
7. An earth connection should always be made between the mounting box earth
terminal, and the accessory earth terminal. If this earth wire is bare, it is essential
that it sheathed with a length of green/yellow sleeving.
8. Carefully position the accessory into the wall box, ensuring no that no wires are
trapped between the plate and the wall, and fully secure using the fixing screws
provided. Do not overtighten the screws.
9. Once you are sure that all work has been completed correctly, replace the fuse
for the circuit, switch the power back on, and test. The product is now
ready for use. 5.
SAFETY ADVICE
What is a safety RCD spur?
Your safety RCD spur continuously monitors the power supply to any electrical
appliance hardwired into it; and cuts off the power within 40 milliseconds if an earth
current fault is detected. This is fast enough to prevent a fatal electrical shock.
Electrical appliances can become dangerous if the wiring becomes loose, if they or
their power cords become damaged or if they get wet. Electrocution is also possible
if fingers, wet hair or other conductive bodies enter the appliance. In all these cases
your safety RCD spur will instantly cut off the electricity before you or a member of
your family receives a potentially fatal electric shock.
Latching operation
If the unit loses supply - perhaps in a power cut or when a hazardous earth fault
occurs – the RCD will trip and cut the power supply. When the supply resumes
through the RCD, the appliance will revert to the original state, making it particularly
useful for protecting indoor appliances such as refrigeration units.
DUE TO LATCHING OPERATION, FOR SAFETY THIS PRODUCT SHOULD NOT
BE USED FOR OUTDOOR POWER TOOLS AND GARDEN EQUIPMENT.
a) an ambient temperature range of – 5 °C to + 40 °C, with an average value not
exceeding + 35 °C over one full day;
b) An altitude not exceeding 2 000 m above sea level;
c) An atmosphere not subject to excessive pollution by smoke, chemical or
flammable fumes; salt-laden spray; prolonged periods of high humidity or other
abnormal conditions.
d) Not suitable for exposure to direct radiation from the sun or other source of heat
likely to raise the temperature above the designated ambient, nor may it be suitable
for subjection to excessive vibration.
Service conditions - This RCD is only suitable for use under the following
conditions of service:
Where service conditions differ from those prescribed
above the advice of the manufacturer or responsible vendor
should be sought.
An RCD socket should not be used as a substitute for basic electrical safety.
NXRCDFCIL/B
WIRING & OPERATING
INSTRUCTIONS
TECHNICAL HELPLINE: 0845 194 7584
SAFETY RCD
FUSED CONNECTION UNIT
WITH FLEX OUTLET