Siemens SIRIUS 3RH Series - Conductor Cross-Sections - Main Circuit

SIRIUS 3RA21/22 load feeders
6.10 Technical data
SIRIUS Innovations
System Manual, 01/2011, A8E56203870002-03
619
6.10.2 Conductor cross-sections - main circuit
Table 6- 32 3RA2 fuseless load feeders - Conductor cross-sections (main circuit)
Type 3RA2.1 3RA2.2
Size S00 S0
Number of poles 3 3
Conductor cross-sections - main circuit
Standards
 IEC 60947-1, DIN EN 60947-1 (VDE 0660 Part 100)
 IEC 60947-2, DIN EN 60947-2 (VDE 0660 Part 101)
 IEC 60947-4-1, DIN EN 60947-4-1
(VDE 0660 Part 102)
Connection type Screw connection
Connection screw M3 (Pozidriv size PZ 2) M4 (Pozidriv size PZ 2)
- Tightening torque Nm
(lb.in)
0.8 to 1.2 (7 to 10.3 lb.in) 2 to 2.5 (18 to 22 lb.in.)
 Solid and stranded
mm
2
2 x (0.75 to 2.5), max. 2 x 4 2 x (1.0 to 2.5),
2 x (2.5 to 10)
 Finely stranded with end sleeve
(DIN 46228 Part 1)
mm
2
2 x (0.5 to 1.5),
2 x (0.75 to 2.5)
2 x (1 to 2.5),
2 x (2.5 to 6), max. 1 x 10
(1-wire or 2-
wire connection
possible)
 Solid or stranded, AWG cables
AWG 2 x (18 to 14), 2 x 12 2 x (16 to 12), 2 x (14 to 8)
Connection type Spring-loaded connection
 Solid and stranded
mm
2
2 x (0.5 to 4) 2 x (1.0 to 10)
 Finely stranded without end
sleeve
mm
2
2 x (0.5 to 2.5) 2 x (1.0 to 6)
 Finely stranded with end sleeve
(DIN 46228 Part 1)
mm
2
2 x (0.5 to 2.5) 2 x (1.0 to 6)
(1-wire or 2-
wire connection
possible)
 Solid or stranded, AWG cables
AWG 2 x (20 to 12) 2 x (18 to 8)