Technical data
11.3 3RU21 thermal overload relays
SIRIUS Innovations - SIRIUS 3RU2 thermal overload relays / SIRIUS 3RB3 solid-state overload relays
Manual, 09/2014, A5E03656507420A/RS-AA/002
115
• Operating tool
mm ∅ 3.0 x 0.5. ∅ 3.5 x 0.5
• Conductor cross-sections (min./max.)
- Solid mm
2
2 x (0.5 to 2.5)
- Finely stranded without end
sleeve
mm
2
2 x (0.5 to 2.5)
- Finely stranded with end sleeve
(DIN 46228 Part 1)
mm
2
2 x (0.5 to 1.5)
- AWG cables, solid or stranded AWG 2 x (20 to 14)
Ring cable lug connection
M3, Pozidriv size 2
mm ∅ 5 ... 6
Specified tightening torque
Nm 0,8 ... 1,2
Ring cable lugs that can be used mm d
2
2)
= min. 3.2, d
3
2)
= max. 7.5
• DIN 46234 without insulating sleeve
• DIN 46225 without insulating sleeve
• DIN 46237 with insulating sleeve
• JIS C2805 type R without insulating sleeve
• JIS C2805 type RAV with insulating sleeve
• JIS C2805 type RAP with insulating sleeve
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.
2)