EnerCharge ECC 320 - Page 25

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Manual: Transport, Installation and Start-Up: DC CompactCharger ECC 320 ©EnerCharge GmbH
ELECTRICAL INSTALLATION ECC 320
7.4.3 Cable Lugs for Connection
7.4.5 Bolt Size of Cable Lugs for PE-N-AC
7.4.4 Screw Connection of PE-N-AC
The selection of the correct cable lug critically depends
on the type of cable to be processed:
• Crimping cable lugs according to DIN 46235 for the crimping of solid, stranded, fine and superfine
stranded copper conductors. For processing, the standard recommends crimping dies in accor-
dance with DIN 48083 Parts 1, 3 and 4 for solid, fine and superfine stranded conductors.
• Crimp cable lugs according to DIN 46234 are suitable for stranded, fine-stranded and fine-stran-
ded conductors up to 240 mm2. Important: Crimping cable lugs are not suitable for solid stran-
ded conductors. There are no normative specifications with regard to crimping tools.
• The international standard IEC 1238 Part 1 applies to the electrical and mechanical properties of
cable lugs.
The section shows the correct screw connection of the AC-PE-N terminal block
CAUTION
An incorrect or incomplete screw connection of the AC-PE-N terminal between the cable lug
of the AC-PE-N supply line and the copper bars inside the ECC 320 can lead to a re hazard
and subsequently to damage to the ECC 320.
• Observe the correct structure of the screw connection according to Fig. 21
• Tighten the nut to the specied torque = 38 Nm.
Damage due to incorrect screw connection
1
Screw
2
Nut
3
Wahser (DIN EN ISO 7089)
4
Cable Lug
5
Copper Bar
6
Clamping Washer (DIN 6796)
3
6
2
5
1
4
Fig. 21: Screw connection of AC-PE-N-connection clamp
The cable lugs for connecting PE-N-AC must be
designed for bolt size M10.
G INFORMATION
Fig. 22: Bolt size for cable lug
M10