GB
Design 30 Consumer Unit
Instructions/Data Sheet
This Consumer Unit and Hager devices conform with the following standards:
Consumer Unit: BS EN 61439-3 including Annex ZB.
Switch-disconnectors: BS EN 60947-3.
Residual Current Circuit Breaker (RCCB): BS EN 61008-1
Residual current operated circuit breaker with integral overload (RCBO): BS EN 61009-1
Miniature Circuit Breaker (MCB): BS EN 60898-1
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Installation Instructions:
All product(s) must be installed by a suitably competent electrician
Giving consideration to their intended use and in accordance with the
current edition of BS 7671 (IET Wiring Regulations).
The Electricity at Work regulations and the Health and Safety at Work Act
shall be complied with.
Additional Extras
Accessory Ref.
Cable protector plate
Can be used on the rear knockouts to smooth any
sharp edges
Insulated:
VM02CE
Metal:
VM01CE
Only equipment and arrangements specied in Hager’s technical
documentation / catalogue shall be used.
Install in the horizontal plane only.
For guidance when making connections in a consumer unit electrical
safety rst /BEAMA document “Guidance for installers when making
connections in consumer units” is available from hager.co.uk/63026.htm
Removal of front
cover:
Easy t front cover assembly allows the cover to be located at the
top of the board and locked Into place that enables the cover to stay
secure when replacing or removing during an installation. The units have multiple xing points that will suit No.8 & No.10 screws
Important notice:
To prevent potential overheating from loose connections the installer
shall check connections are tight to the torque levels stated in these
instructions prior to energizing this board. This check should include
factory made connections which may have loosened in transit.
Good workmanship and proper materials must be applied by the installer.
The cable entry method shall, as far as reasonably practical, maintain the
non-combustable arrangement of the enclosure. Account shall be taken of
these instructions.
Wall Fixing:
Cable entry facilities:
Where Electrical Knockouts are provided for top or bottom cable entry
are sized and positioned to suit standard trunking i.e 100x50mm,
50x50mm & 40x25mm, grommet strip is provide to protect the cables
when entering the board.
Note: Only BASEC approved cable should be used
2
1.0mm
to 16mm2 for outgoing cables
1
Rear cable entries shall enter thorough selected rear Knockout; once
the Knockout is removed the cable protector bracket can be tted
to allow safe installation of the cables. Grommet strip lengths: Small
EKO – 79mm, Large EKO – 127mm Rear EKO – 255mm
Up to 35.0mm2 for incoming live cables
Single conductors below 1.5mm² need to be doubled back in the
terminal bar.
ZD0821 - Issue 4 9-16
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Rear cable entries shall enter thorough selected rear knockout; once
Incoming meter tails can be safely secured using the cable clamp
system eliminating stress within the switch terminal.
Guidance Notes:
The total load must not exceed the rating of the incoming device or the assigned assembly rating (InA) whichever is the lower. Each neutral and earth
connection must correspond numerically to its outgoing way. Additional blanks (ref. JK01B) are available to cover spare ways.
A pack is provided to label this consumer unit, please consult us for spares or replacements.
Operating Instruction leaet is provided overleaf. This leaet should be left for the end user.
Single conductors below 1.5mm² need to be doubled back in the terminal bar.
Consumer Units incorporating RCDs in TT systems should incorporate an S type (time Delayed) RCCB, e.g. 100 mA s-type RCCB . Alternatively a main
switch with RCBO protection on all outgoing circuits should be used.
Precautions need to be taken to prevent faults to earth on the supply side of the RCD (as per BS7671 regulation 531.4.1)
Cable Access:
Cable access into the metal consumer unit must maintain the integrity of the non-combustable consumer unit so far as reasonably practicable. This can
generally be achieved by the installer ensuring that cable access holes they make in the enclosure do not to leave gaps greater than:
· 1.0 mm for the horizontal top surface and
· 2.5 mm for all other surfaces of the enclosure that are accessible after installation.
For rear cable access, the minimum number of knockout(s) shall be removed and a cable protector tted; see illustration above.
Tests on hager consumer units have indicated that there is no specic need for external re rated cable glands or intumescent sealing in addition to the
guidance below, with respect to achieving a non-combustible enclosure. However this does not preclude the designer/installer from using re rated cable
glands or external intumescent sealing should they consider necessary. Internal intumescent pads shall not be used.
the knockout is removed the cable protector frame can be tted in
order to avoid any damage to the cable insulation or sheath during
installation.
1mm
1mm
2.5mm
2.5mm
Fitting Hager MCBs and RCBOs:
Only equipment and arrangements specied in Hager’s technical
documentation / catalogue shall be used.
1. Isolate the electrical supply from the consumer unit.
2. Remove the front cover.
3. Fully slacken the lower terminal of the device.
4. Fully open the bottom device clip (g 1.)
Warranty
This distribution board is offered with a 24 month warranty against defective material or manufacture. If a warranty claim is necessary, please call the
technical support number given at the bottom of the page and we will be pleased to help.
For dimensional information and weights please consult the Hager catalogue.
2.5mm
5. Locate the device onto the din rail, and busbar. Ensure that the
busbar tooth is within the device terminal cage.
6. Close the bottom device clip.
7. While holding the device rmly onto the busbar, fully tighten the lower
terminal screw.
8. After tting all outgoing devices and connecting all outgoing cables,
please check the tightness of all cable connections. This should
include all factory made connections, which may have loosened
during installation or transit.
g 1.
Hager Technical Help Line: 01952 675 689
Hager Technical Fax: 01952 675 557
Hager Technical E-mail: technical@hager.co.uk
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Website: www.hager.co.uk
ZD0821 - Issue 4 9-16
Torque Settings
Pz No. (mm)
Cables >1.5mm
Tightening torque (N.m)
2
Cables ≤1.5mm
Tightening torque (N.m)
Single Cable Multi Cables Single Cable Multi Cable
2
Cable Stripping
(mm)
Consumer unit terminals
Earth and neutral terminal bars 2 6.5 2 2 1.5 1.5 10
Isolation
SB switch disconnectors 2 6.5 3.6 3.6 3.6 3.6 15
Circuit protection
MTN MCB 2 6.5 2.8 2.8 2.8 2.8 13
NBN/NCN/NDN MCB 2 6.5 2.8 2.8 2.8 2.8 13
RCBO 2 5.5 2.1 2.1 2.1 2.1 13
RCCB 2 5.5 2.8 2.8 2.8 2.8 13
Interface characteristics
Rated & operational voltage (Un / Ue)
230V a.c. 50Hz
Rated insulation voltage (Ui)
320V a.c. 50Hz
Rated impulse withstand voltage (Uimp)
4kV
Rated current of the Assembly (InA)
100A, 63A, 40A
Note: Dependent upon rating of main incoming device
Rated current of an Outgoing circuit (Inc)
MCB 6A - 63A (marked rated current on device)
Rated current of outgoing unit (Inc)
RCCB 40A -100A (marked rated current on device)
RCBO 6A - 50A (marked rated current on device)
Rated conditional short-circuit current of the ASSEMBLY (Icc)
Annex ZB: 16 kA rms at 250V, power factor 0.6 with equipment and arrangements specied in Hager’s technical documentation /
catalogue.
Protection against electric shock
Consumer unit shall be installed in an electrical system conforming to the current edition of IEC 60364 / BS 7671
Rated diversity factor (RDF) / Values of assumed loading
1way = 1.0
Note: RDF only applies to continuously and simultaneously loaded
circuits.
2way – 3way = 0.8
4way – 5way = 0.7
6way – 9way = 0.6
10way and above = 0.5
In principle, this means adjacent circuit-breakers having a load
‘on’ time exceeding 30 minutes or where a load not exceeding 30
minutes has an ‘off’ time less than the ‘on’ time, will need to have
the rated diversity factor applied as indicated.
Rated frequency (fn) - 50 Hz
Pollution degree - 2
Types of system earthing for which the ASSEMBLY is designed
TNC-S, TN-S when installed in an electrical installation complying with BS 7671
Hager recommends for TT systems a 100A type S time delayed RCCB or a main switch with RCBO protection only on all outgoing circuits.
Indoor use only
Stationary ASSEMBLY
Degree of protection
IP2XC with Door Open / closed and full compliment of outgoing devices and or blanks tted.
Note: Where cables are installed through top wall of enclosure, gaps of IP4X to be maintained.
Intended use
Intended for use in domestic (residential) or similar premises.
Electromagnetic compatibility (EMC) classification
EMC Environment B
External design
VM: Wall-mounted, surface type, enclosed assembly.
Mechanical impact protection
IK 05
The type of construction
Fixed parts
Type A DBO (Distribution board for use by ordinary persons)
3
ZD0821 - Issue 4 9-16
START
T
T
ON
ON ON
T
Blank RCCB RCBO (two module) MCB RCBO Switch
(one module)
Use circuit as
normal
YES
NO
Does device
stay ON?
NO
Does device
supply socket
outlets
YES
Try & reset device once
MCB
or
RCBO
MCB
tripped
What device
is it?
RCCB
Try & reset device once
Use circuit as
Does device
all MCBs devices
Reset RCCB
normal
YES
stay ON?
NO
Turn OFF
Unplug all
appliances from
circuit and reset
device / replace fuse*
NO
Does device
stay ON?
Plug in & switch on
YES
appliances one at a time
until device trips / blows,
identifying faulty appliance
Unplug faulty
appliance until
repaired. Reset device.
Other appliances may
be used
NO
Does device
stay ON?
Turn ON MCBs
devices one at a time
until RCCB trips again,
identifying faulty circuit
YES
Design 30
A
C
Dimensions
(mm)
A 149 221 293 364 400 472
B
B 240 240 240 240 240 240
C 102.5 102.5 102.5 102.5 102.5 102.5
Enclosure Size
2 3 4 5 6 7
4
ZD0821 - Issue 4 9-16
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