Page 33 - ELECTRONICON_Katalog_PFC-60Hz

MOUNTING INSTRUCTIONS

Vibration stress according to DIN IEC 60068-2-6
Please consult us for details of permitted vibration stress in your application.
Note that capacitors fitted with the EL-Dr discharge reactor must not be exposed to any vibration stress at all.

Connection
Fuses and cross section of the leads should be sized for at least 1.5 times of the rated capacitor current (I ). Please ensure that
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the permitted maximum rms current according to data chart (I ) is not exceeded. Do not exceed the permitted nominal current
max
values per contact as specified in chart 8 even when coupling capacitors in parallel.
The capacitors shall only be connected with flexible cables or elastic copper bands to ensure unrestricted functioning of the
expansion mechanism (BAM™).
Stranded cables should be fitted with ferrules when connected to the CAPAGRIP terminals. See chart 8 for minimum cable size
if used without ferrules. Make sure to use cables with fine or medium strands only. MOUNTING INSTRUCTIONS

The solder joints on the capacitor lids guarantee the hermetical sealing of the capacitors and must not be expo- »!«
sed to excessive heat.
The CAPAGRIP™ terminals (design K, L, L4, M) must not be bent, twisted or moved in any other way.

Selection of cables
Cables used for the connection of power capacitors must not contribute to the power losses of the capacitor. It may therefore be
appropriate to select cable sizes in excess of the minimum permitted cross sections usually specified by cable manufacturers.

Chart 8 is based on DIN VDE 0100-430 and IEC 60439-1 and related to the operation of three or four bundled copper cables at an
average ambient temperature of 40°C. Mind that national rules or the standards of your application may require different ratings.

Chart 8 outlines the minimum requirements towards the connection of capacitors. We recommend dimensioning the cables for at
least 1.5 x I where possible, and using one grade larger cable ratings if expecting higher ambient temperatures and/or substanti-
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al content of harmonics.

max. nominal e.g. Q C max recommended max. recommended
capacitor current 480V 60Hz cable section HRC fuse*
(A/phase) (kvar) (mm /phase) (A)
2
6 5 1.5 25
12.3 10 2.5 32
16.2 13 4 35
20.8 17 6 40
28.5 24 10 63
37.7 30 16 80
50 40 25 125
60.8 50 35 125
76.2 63 50 / 35** 160
* The recommended HRC fuses are rated for cable protection only. chart 8
** Cables shall not be bundled.

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