Norms, Standards, Terms
International Standards
Modular terminals to
IEC 60947-7-1
Low-voltage switchgear and
controlgear
Part 7-1:
Auxiliary devices Terminals for
copper conductors
This standard has been ratified by
CENELEC European level and is
as such valid all CENELEC member
countries.
• Terminals that directly contact
the conductor through cutting
or which create contact points
by penetrating the insulation, for
example insulation eg.
The standard valid for modular
terminals for connecting round copper
conductors with cross-section
between 0.
The modular terminals possess a
rated connection capacity that at
least two steps smaller than the rated
cross-section.2 0.5 2.0
- 6.75 1.
In conjunction with this and having an
overriding importance:
IEC 60947-1
Low-voltage switchgear and
controlgear
–General stipulations
(IEC 60947-7-1)
(EN 60947-7-1)
This standard defines requirements
for feed-through and disconnect-test
terminals with screw screwless
terminal points which are primarily
intended for industrial applications or
similar and are attached carrier to
produce electrical and mechanical
connection between copper cables.0 1. such
as insulation displacement
connections, etc.2 mm2
and 300 mm2
(AWG 24/600 kcmil), for electric
circuits 1000 AC/1000 or
up 1500 DC. The conductors may
be solid, multi-strand fine-strand
components, necessary with the
ends the conductors prepared for the
connection.
Verification the rated cross-section is
carried out with gauge, according to
IEC 60947-1.5 4.
This standard can used a
guide for:
• Terminals that require the
attachment special fixtures the
conductor such tab wire-wrap
connectors, etc.
The rated cross-section selected from
the following standard cross-sections:
0.0 -
120 150 240 300 mm2
.5 0.
Feed-through terminal
An insulating part consisting one or
more terminal groups that are isolated
from each other, and designed be
mounted carrier.
W
Technicalappendix
W.
Rated cross-section
The rated cross-section modular
terminal the size specified by
the manufacturer the conductor
cross-section that can connected to
the terminal, which certain thermal,
mechanical and electrical requirements
are based, and which intrinsic the
marking the terminal.12 1282250000 2012/2013
