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Terminal Blocks |
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Terminal blocks are components and systems the
main function of which is to ensure safe and
secure electrical and mechanical conductor connections.The
term covers all conceivable types, designs and
forms of connection. From the point of view
of application, the most important group of
terminals is that of rail mounted modular terminal
blocks. |
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- The current carrying bar must be made
of metals, which reduce electrical losses
to minimum.
- Insulation material must be non-flammable
and self-extinguishing.
- The screw must not be loosed due to vibration.
- The current carrying bar must have such
a form that the conductor has a strong contact
area in the connection point.
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The terminal block series should have a complete
range together with all the accessories to provide
the best solutions in a minimum area. |
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Materials |
| KLEMSAN
terminals are made of carefully selected standard
materials. Insulating materials, clamping metals
and conducting metals are subjected to strict
quality control as required by stringent international
standards. |
| Clamping
yokes and screws are zinc plated which considerably
increases the resistance to corrosion. Current
bars are made out of brass / electrolytic copper.
Coating of tin / lead oxide, nickel while ensuring
surface protection guarantees very low contact
resistance. |
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| Engineering
thermoplastic Polyamide 6.6 has excellent electrical,
mechanical and chemical characteristics even
at temperatures as high as 100 °C and contains
no cadmium based color pigments. Polyamide 6.6
moulded housing absorbs humidity from its surroundings.
This makes the plastic material elastic and
fracture proof even at temperatures as low as
-40 °C. Being a self-extinguishing material
it is difficult to ignite and burns only as
long as there is a supporting flame. It is rated
V2 according to UL94. Good aging resistance
and insensitivity to ultraviolet light makes
it suitable for tropical and open-air applications. |
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Main Terminology |
| Modular
Terminal Blocks: Modular terminal blocks
are used worldwide. Whether they are in distribution
boards, control centres or machine control systems,
in ship, power stations or railway rolling stock,
Klemsan terminals guarantee safe connections
in all low voltage installations. In view of
this versatile and worldwide application the
materials used and the technical data achieved
meet the highest quality standard. Approvals
have been obtained from all major industrial
countries. |
| Rated
Cross-Section: The rated cross-section
of a terminal block is a value of conductor
cross-section, which is indicated by the manufacturer
and covered the thermal, mechanical and electrical
requirements. |
| Rated
Current: The rated current of a terminal
block is a current value, which is indicated
by the manufacturer and covered the thermal,
mechanical and electrical requirements on using
the rated cross-section. |
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The
Rated Voltage: The rated voltage
of a terminal block is a voltage value which
is stated by the manufacturer according to
creepage and clearance distances and which
does not allow any deformation on product.
Nominal
Dimensions: Nominal dimensions are
the overall dimensions of the terminal block
with fixings, but without tolerances. To the
specified terminal with a tolerance of +0.2mm.
must be allowed during design when mounting
in rows.
Insulation
Stripping Length: The required stripping
length for every Klemsan product is stated
in mm. These lengths must be observed.
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Plate: The last terminal in a rail-mounted
assembly must be close with an end plate. The
end plate is held in position by the end bracket. |
| Partition:
The partition is required for the visual separation
of circuits or for electrical separation in
case of adjacent cross connections. |
| Small
Partition: Small partitions can be
inserted after assembly into terminal blocks
of up to a max. thickness of 10mm. between cross
connections and test sockets. |
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