Double point connection |
Recommended electrical connectors |
Maximum short circuit current according to IEC |
Notes |
Type A |
S-BT-ER W10 / 15 SN 6 S-BT-EF W10 / 15 AN 6 |
= 1.92 kA ( IEC ) |
Recommended maximum cross section of connected cables according to IEC 60947-7-2 and IEC 60947-7-1 : 6 AWG copper ( tested short circuit current = 1.92 kA for 1 s )
Fastening of thicker cable is acceptable , if the maximum short circuit current and the exposure time is not exceeded and the provisions on cable lug thickness are observed .
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Single point connection |
Recommended electrical connectors |
Maximum lightning current |
Notes |
Classification N ( acc . IEC 62561-1 ): Type A |
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S-BT-ER W10 / 15 SN 6 S-BT-EF W10 / 15 AN 6 |
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Classification N ( acc . IEC 62561-1 ): Type B |
S-BT-ER W10 HC AWG2 S-BT-EF W10 HC AWG2 S-BT-ER W10 HC AWG4 / 0 S-BT-EF W10 HC AWG4 / 0 |
= 50 kA for ≤ 5 ms ( IEC 62561-1 ) |
When S-BT-ER / EF is used in class H applications only type B cable connections are allowed . Tightening torque of 5.90 ft-lb ( 8 Nm ) must be observed accurately for type B cable connections . |
Classification H ( acc . IEC 62561-1 ): Type B |
S-BT-ER W10 HC AWG2 S-BT-EF W10 HC AWG2 S-BT-ER W10 HC AWG4 / 0 S-BT-EF W10 HC AWG4 / 0 |
= 100 kA for ≤ 5 ms ( IEC 62561-1 ) |