Moeller. Wiring manual. Automation and Power distribution
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Specifications, Formulae, Tables
Approval authorities worldwide
Moeller Wiring Manual 02/05
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9
PRS Polski Rejestr Statków
Ship classification association
Poland
PTB
Physikalisch-Technische Bundesanstalt
German physical/technical federal agency
Germany
RINA
Registro Italiano Navale
Italian ship classification association
Italy
SAA
Standards Association of Australia Australia
SABS
South African Bureau of Standards South Africa
SEE
Service de l'Energie de l'Etat
Luxemburg authority for standardisation, testing and certi-
fication
Luxemburg
SEMKO
Svenska Elektriska Materielkontrollanstalten
Swedish test institute for electrotechnical products
Sweden
SEV
Schweizerischer Elektrotechnischer Verein
Swiss electrotechnical association
Switzerland
SFS
Suomen Standardisoimisliito r.y.
Finnish standardisation association, Finnish standard
Finland
STRI
The Icelandic Council for Standardization Iceland
SUVA
Schweizerische Unfallversicherungs-Anstalt
Swiss accident insurance federal agency
Switzerland
TÜV
Technischer Überwachungsverein
Technical inspection association
Germany
UL
Underwriters' Laboratories Inc. USA
UTE
Union Technique de l'Electricité
Electrotechnical federation
France
VDE
Verband der Elektrotechnik, Elektronik, Informationstechnik
(Verband Deutscher Elektrotechniker)
Association of electrical, electronics and information tech-
nology
Germany
ZVEI
Zentralverband Elektrotechnik- und Elektronikindustrie
Central association of the electrical and electronic industry
Germany
Abbrevi-
ation
Full title Country
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Specifications, Formulae, Tables
9
Test authorities and approval stamps
Test authorities and approval stamps in Europe and North America
Moeller devices have in their basic design all
worldwide necessary approvals including those
for the USA.
Some devices, such as circuit-breakers, are in their
basic design usable worldwide with the exception
of USA and Canada. For export to North America
devices are available with a special UL and CSA
approval.
In all cases special country specific installation and
operating specifications, installation ,materials
and types must be taken into account as well as
special circumstances such as difficult climatic
conditions.
Since January 1997 all devices that conform to the
European low-voltage guidelines and are for sale
in the European Union must be marked with the
CE mark.
The CE mark shows that the marked device
corresponds with all relevant requirements and
standards. This marking duty allows unlimited use
of this device within the European economic area.
Approval and marking for their own country is no
longer necessary when a device is marked with
the CE mark that corresponds to the harmonised
standards. (a Table, Page 9-32).
An exception is the instalation material. The
device group of circuit-breakers and earth-fault
protection switches are in certain areas still to be
labelled and are therefore marked with the
relevant label.
Country Test authority Stamp
included in CE mark
Belgium Comité Electrotechnique Belge
Belgisch Elektrotechnisch Comité
(CEBEC)
yes, except installation
material
Denmark Danmarks Elektriske Materielkontrol
(DEMKO)
Yes
Germany Verband Deutscher Elektrotechniker
(VDE)
yes, except installation
material
Finland FIMKO
Yes
France Union Technique de l’Electricité (UTE)
yes, except installation
material
v
Specifications, Formulae, Tables
Test authorities and approval stamps
Moeller Wiring Manual 02/05
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9
Canada Canadian Standards Association (CSA) no, extra or seperate the
UL an CSA approval
mark
Netherlands Naamloze Vennootschap tot Keuring
van Electrotechnische Materialen
(KEMA)
Yes
Norway Norges Elektriske Materiellkontrol
(NEMKO)
Yes
Russia Goststandart(GOST-)R
No
Sweden Svenska Elektriska Materiel-
kontrollanstalten (SEMKO)
Yes
Switzerland Schweizerischer Elektrotechnischer
Verein (SEV)
yes, except installation
material
Czech
Republic
–
–
no, manufacture
declaration is enough
Hungary –
–
no, manufacture
declaration is enough
USA Underwriters Laboratories
Listing Recognition
no, extra or seperate the
UL an CSA approval
mark
Country Test authority Stamp
included in CE mark
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Specifications, Formulae, Tables
9
Protective measures
Protection against electrical shock to IEC 364-4-41
A distinction is drawn here between protection
against direct contact, protection against indirect
contact and protection against both direct and
indirect contact.
• Protection against direct contact
These are all the measures for the protection of
personnel and working animals from dangers
which may arise from contact with live parts of
electrical equipment.
• Protection against indirect contact
This is the protection of personnel and working
animals from dangers which may arise from
accidental contact with components or
extraneous conductive parts.
Protection must be ensured by either a) the
equipment itself or b) the use of protective
measures when erecting the installation or c) a
combination of a) and b).
Protective measures
Protection against direct as
well as indirect contact
Protection against direct
contact
Protection against indirect
contact
Protection by extra-low
voltage:
–SELV
–PELV
Protection by insulation of
active parts
Protection by automatic
disconnection of the power
supply
Protection by covering or
encapsulating
Protective insulation (Total
insulation) k
Protection by partitioning Protection by
non-conductive spaces
Protection by distancing Protection by non-earthed
local equipotential bonding
Protective isolation
Specifications, Formulae, Tables
Protective measures
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9
Protection against indirect contact by means of disconnection or indication
The conditions for disconnection are determined
by the type of system in use and the protective
device selected.
Systems to IEC 364-3/VDE 0100 Part 310
a System earth
b Chassis
c Impedance
Earth continuity type systems
Meaning of designation
TN system
T: direct earthing of a point (system earth)
N: chassis directly connected to the system earth
TT system
T: direct earthing of a point (system earth)
T: chassis directly earthed, independent of the
earthing of the power supply (system earth)
IT system
I: All live parts isolated from earth or one point
connected to earth via an impedance.
T: chassis directly earthed, independent of the
earthing of the power supply (system earth)
L2
N
L1
L3
PE
b
a
L2
N
L1
L3
PE
b
a
L2
L1
L3
cb
PE
Specifications, Formulae, Tables
Protective measures
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9
Protective devices and conditions for disconnection to IEC 364-4-1/VDE 0100 Part 410
Type of
distribution
system
TN system
Protection with
System circuit Description
so far
Condition for
disconnection
Overcurrent
protective
device
TN-S system
separated neutral and earth
conductors throughout the system
Z
s
X I
a
F U
0
Z
s
= Impedance of
the fault circuit
I
a
= current, which
causes disconnection
in:
• F 5 s
• F 0.2 s
in circuits up to 35 A
with sockets and
hand-held
components which
can be moved
U
0
= rated voltage
against earthed
conductor
Fuses
Miniature
circuit-breakers
Circuit-
breakers
TN-C system
Neutral conductor and protection
functions are combined throughout
the system in a single PEN
conductor.
Protective
multiple
earthing
L2
N
L1
L3
PE
L2
PEN
L1
L3
Specifications, Formulae, Tables
Protective measures
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9
Protective devices and conditions for disconnection to IEC 364-4-1/VDE 0100 Part 410
*a Table, Page 9-41
Type of
distribution
system
TN system
Protection with
System circuit Description
so far
Condition for
disconnection
Overcurrent
protective
device
TN-C-S system
Neutral conductor and protection
functions are in a part of the system
combined in a single PEN conductor
Residual-
current
protective
device
Residual-
current
protective
circuit
Z
s
X I
Dn
F U
0
I
Dn
= rated fault
current
U
0
= maximum
permissible touch
voltage*:
(F 50 V AC,
F 120 V DC)
Residual
voltage
protection
device (in
special case)
Insulation
monitoring
devices
L2
L1
L3
N
PE(N)
L2
L1
L3
N
PE(N)
Specifications, Formulae, Tables
Protective measures
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9
Protective devices and conditions for disconnection to IEC 364-4-1/VDE 0100 Part 410
*a Table, Page 9-41
Type of
distribution
system
TT system
Protection with
System circuit Description
so far
Conditions for indica-
tion/disconnection
Overcurrent
protective
device
Fuses
Miniature
circuit-breakers
Circuit-breakers
Protective
earth
R
A
X I
a
F U
L
R
A
= Earthing
resistance of
conductive parts of the
chassis
I
a
= Current which
causes automatic
disconnection in F 5 s
U
L
= Maximum per-
missible touch volt-
age*:
(F 50 V AC,
F 120 V DC)
Residual-current
protective device
Residual-
current
protective
circuit
R
A
X I
Δn
F U
L
I
Δn
= rated fault
current
Residual-voltage
protective device
(for special
cases)
Residual-
voltage
protective
circuit
R
A
: max. 200 O
L2
PE
L1
L3
N
PE
PE
L2
PE
L1
L3
N
L2
L1
L3
N
PE PE
F1 F1 F1
L2
N
L1
L3
PE
FU
Specifications, Formulae, Tables
Protective measures
Moeller Wiring Manual 02/05
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9
Protective devices and conditions for disconnection to IEC 364-4-1/VDE 0100 Part 410
*a Table, Page 9-41
Type of
distribution
system
TT system
Protection with
System circuit Description
up to now
Conditions for indica-
tion/disconnection
Insulation
monitoring
device
–
Overcurrent
protection
device
Feed back
to
protective
multiple
earthing
R
A
X I
d
F U
L
(1)
Z
S
X I
a
F U
o
(2)
R
A
= Earthing
resistance of all
conductive parts
connected to an earth
I
d
= Fault current in
the event of the first
fault with a negligible
impedance between a
phase conductor and
the protective
conductor or element
connected to it
U
L
= Maximum
permissible touch
voltage*:
F 50 V AC,
F 120 V DC
L2
PE
L1
L3
Specifications, Formulae, Tables
Protective measures
Moeller Wiring Manual 02/05
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9
Protective devices and conditions for disconnection to IEC 364-4-1/VDE 0100 Part 410
*a Table, Page 9-41
Type of
distribution
system
IT system
Protection with
System circuit Description
so far
Conditions for indica-
tion/disconnection
Residual-current
protective
device
Residual-
current
protective
circuit
R
A
X I
Δn
F U
L
I
Δn
= rated fault
current
Residual
voltage
protective
device (for
special cases)
Residual-
voltage
protective
circuit
R
A
: max. 200 O
Insulation
monitoring
device
a additional potential
equalisation
Protective-
conductor
system
R X I
a
F U
L
R = Resistance
between components
and extraneous
conductive parts
which can be touched
simultaneously
L2
PE
L1
L3
PE
F1 F1
L2
L1
L3
FU
PE
FU
PE
L2
PE
L1
L3
Z
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