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Operating Instructions
Single-pole Conductor Rail System
SingleFlexLine Program 0815
BAL0815-0002g-US
www.conductix.us
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page 61 of 128
6.3.3.5
Expansion unit and expansion module
An expansion unit is a component used to compensate for changes in length of a conductor rail pole and is supplied without conductor
rails. It is installed the same as an air gap insulation section (see Section 6.3.3.6). An expansion module consists of expansion units
and conductor rails for a specified route length. The mounting is described in Section 6.3.3.5.2 and in Section 6.3.3.5.3. The expan-
sion unit and expansion module with an expansion gap of 20 mm are described below.
The use of an expansion unit or an expansion module is necessary if expansion occurs between two fixed points that can no longer
be compensated for or absorbed by the individual components of the conductor rail system. Short lengths of < 20 m and low temper-
ature changes of < 40 K can be absorbed by the individual components in the conductor rail system.
Expansion units and expansion modules are also used when the support profile has an expansion joint, e.g., at building transfers.
Then the expansion path of the support profile must be absorbed by an expansion unit or expansion module.
Fixed points in terms of thermal expansion are end caps or fixed points of the conductor rail system since this is where the conductor
rail is firmly connected to the support profile. Curves and bends in the support profile layout can also hinder the thermal expansion
of a conductor rail and are therefore also classified as fixed points (natural fixed points).
Expansion module length
710 mm (without connector caps)
Conductor cross-section
Rail 25 mm², expansion point 6 mm² with conductor loop
Rated current
Max. 54 A
Cable type
Double insulated cable (CE and UL)
Ambient temperature
-5°C to +55°C
Storage temperature
-25°C to +55°C
DANGER!
Risk of overload!
The rated current can only be achieved with suitable cable routing.
→
Ensure sufficient distance and ventilation.
→
If the cables are bundled or if there is insufficient ventilation, reduce the rated current ac-
cording to the standard.
NOTE!
Expansion units and expansion modules are not intended for use in bends or curves
and may only be installed in straight routes!