Siemens SIRIUS 3RU2 - Conductor Cross-Sections Main Circuit

Technical data
11.4 3RB30/3RB31 solid-state overload relays
SIRIUS Innovations - SIRIUS 3RU2 thermal overload relays / SIRIUS 3RB3 solid-state overload relays
Manual, 09/2014, A5E03656507420A/RS-AA/002
127
11.4.1.3
Conductor cross-sections main circuit
Technical data for main circuit connection, 3RB30/3RB31 overload relays
Table 11- 13 Technical data for main circuit connection, 3RB30/3RB31 overload relays
Type
3RB301.,
3RB311.
3RB302.,
3RB312.
Size
S00
S0
Width
45 mm
45 mm
Connection type
Screw connection
• Connection screw
M3, Pozidriv size 2 M4, Pozidriv size 2
• Operating tool
∅ 5 ... 6 ∅ 5 ... 6
• Tightening torque
Nm 0,8 ... 1,2 2 ... 2,5
• Conductor cross-sections (min. / max.), 1-wire or 2-wire
- Solid mm
2
2 x (0.5 to 1.5)
1)
2 x (0.75 to 2.5)
1)
2 x (0.5 to 4)
1)
2 x (1 to 2.5)
1)
2 x (2.5 to 10)
1)
- Finely stranded with end
sleeve
mm
2
2 x (0.5 to 1.5)
1)
2 x (0.75 to 2.5)
1)
2 x (1 to 2.5)
1)
2 x (2.5 to 6)
1)
max. 1 x 10
- AWG cables, solid or stranded AWG 2 x (20 to 16)
1)
2 x (18 to 14)
1)
2 x 12
1)
2 x (16 to 12)
1)
2 x (14 to 8)
1)
Connection type
Spring-loaded connection
• Operating tool
∅ 3.0 x 0.5 and ∅ 3.5 x 0.5
• Conductor cross-sections (min./max.)
- Solid mm
2
1 x (0.5 to 4) 1 x (1 to 10)
- Finely stranded without end
sleeve
mm
2
1 x (0.5 to 2.5) 1 x (1 to 6)
- Finely stranded with end
sleeve (DIN 46228 Part 1)
mm
2
1 x (0.5 to 2.5) 1 x (1 to 6)
- AWG cables, solid or
stranded
AWG 1 x (20 to 12) 1 x (18 to 8)
1)
If two different conductor cross-sections are being connected to one clamping point, both cross-sections must be
located in the range indicated. If identical cross-sections are used, this restriction does not apply.