Siemens SIRIUS 3RU Manual page 113

Table 8- 18 Main conductors of size S3 with M6 screws
Tool
Tightening torque
Busbars (M6 x 25)
Ring cable lug
1)
Ring cable lug cover
The following ring cable lugs are approved for achieving the required clearances and
1)
creepage distances:
● For applications according to IEC 60947-1:
– DIN 46237 (with insulating sleeve)
– JIS CS805 type RAV (with insulating sleeve)
– JIS CS805 type RAP (with insulating sleeve)
● For applications according to UL 508:
– DIN 46 234 (without insulating sleeve)
– DIN 46225 (without insulating sleeve)
– JIS CS805 (without insulating sleeve)
A shrink-on sleeve must be used to insulate ring cable lugs without an insulating sleeve. The
following conditions must be met:
● Operating temperature: -55 °C to +155 °C
● UL 224 approved
● Flame-protected
SIRIUS 3RU thermal overload relays / SIRIUS 3RB electronic overload relays
Manual, 09/2016, A5E03656507420A/RS-AB/003
DANGER
Hazardous voltage. Will cause death or serious injury.
Only use approved ring cable lugs to meet the required clearances and creepage
distances.
8.4 Connection cross-sections
SIRIUS devices
4 mm Allen key
4.5 ... 6.0 Nm
2 x 12 x 4
d = min. 6.3 mm
2
d = max. 19.0 mm
3
3RT1946-4EA1
Connection
113