Installation and Commissioning
Electrical Installation
REGATRON
Performance. Precision. Quality.
TC.ACS - Device Manual (V04.60) - 26.4.2022
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4.4.2 Prerequisites
For the electrical installation of the TC.ACS device the electrical cabinet or whatever the TC.ACS device is to be
connected to, must be galvanically isolated, disconnected from the mains and secured against being
reconnected.
Furthermore, the following must be given:
• Correct Size of Cables and Cable Ends
(
)
• Electromagnetic Compatibility of Cables
(
4.4.2.1 Correct Size of Cables and Cable Ends
The terminals X10 (AC line input) and X20 (AC load output) (see
) allow for different types of cable ends, i.e.
the following:
• flexible cable ends
• rigid cable ends
• cable ferrules
In any case, the cable ends must meet the following conditions regarding their cross-section and their stripping
length:
Fig. 9:
Cable end with diameter
d
and stripping length
a
Cables carrying high currents must have an adequate cable cross-section area.
If necessary, refer to your national standards and the information on the type plates in order
to determine the correct size of cables.
Regatron recommends to use cable ferrules.
Clamp
Type of cable end
Cross-section area A (= π
d
2
/4)
Stripping length
mm
2
AWG/kcmil
X20
Flexible
10 … 25
10 … 2
19 mm
Rigid
6 … 35
Ferrule
4 … 25
X10
All
25 … 50
2 … 0/1
22 mm
The touch current in the grounding cables exceeds the limit of 3.5 mA. Therefore the minimum
cross-section of the grounding cable must comply with the local safety regulations for
equipment with high current in the grounding cable. This is 10 mm
2
for fixed connection.