Poznámky redaktora
Installation
Installation conformity with standards
With precisely matched accessories
When mounting terminal blocks and assembling panels, you must always able
to rely accessories fitting perfectly. The requirements placed terminal rails, busbars, as
well cover plates and support brackets, are correspondingly high. One advantage low weight, another outstanding
corrosion protection. Depending the application area, offer
terminal rails made steel, stainless steel, aluminium, copper
or plastic. Only then the processes run smoothly
and therefore productively.
Aluminium
Aluminium has the second best electrical conductivity after
copper.
Stainless steel
Stainless steel collective term for all types steel (alloys)
with high degree purity and corrosion resistance.
Steel
Steel terminal rails are the most widespread the market. They have to
comply with numerous standards and safety regulations.
Use conductors PEN busbars
Under certain circumstances, you can also use terminal
rails bus bars for protective conductors (PE conductors)
or PEN conductors. They can used where clearance and creepage
distances the support bracket cannot achieved with
standard terminal rails. The Weidmüller terminal blocks
with spring and screw connections fulfil the requirements
for conductors defined IEC 60947-7-2.2 CAT1 Version 2025
C
Mounting accessories
.
Plastic
Plastic terminal rails have insulating properties and are very
light.
Our promise
Our components are aligned each other right down the finest detail and
hence make installation easier for you.
Information and ordering data for mounting accessories available you our
online catalogue. The copper rail has the highest short-circuit protection.
Copper
Copper has the best electrical conductivity all metals
used.
Terminal rails
Terminal and top-hat rails for component mounting and
end brackets are important for holding and insulating the
components.
Among metal terminal rails, they have the lowest short-
circuit protection, similar stainless steel.
Our installation tip
If terminal rail used PEN busbar, the following
criteria have observed:
• Only profiles made E-Cu aluminium are
permissible
• Short-circuit currents and thermal rated currents
• Insulate terminal rails with the
“protective insulation”protective measure
C. According to
VDE 0100 Part 540, protective earth conductors and neutral
conductors with wire cross-sections above mm2
may be
combined form conductor abbreviated PEN
