Siemens 3UG4 - Combinations with 3 RT20 Contactor

3RR2 current monitoring relays
4.3 Performance features of current monitoring relays
3UG4 / 3RR2 monitoring relays
52 Manual, 05/2016, NEB927043002000/RS-AC/004
4.3.4
Combinations with 3RT20 contactor
Monitoring relay type
Current range
3RT20 1 S00 contactors
3/4/5.5/7.5 kW
3RT20 2 S0 contactors
5.5/7.5/11/15/18.5 kW
3RT20 3 S2 contactors
18.5/22/30/37 kW
3RR2141
1.6 to 16 A
✓
X
X
3RR2241
1.6 to 16 A
✓
X
X
3RR2142
4.0 to 40 A
X
✓
X
3RR2242
4.0 to 40 A
X
✓
X
3RR2143
8.0 to 80 A
X
X
✓
3RR2243
8.0 to 80 A
X
X
✓
X = with stand-alone assembly support
You can find further technical information on 3RR24 in the Manual "3UG48/3RR24
monitoring relays for IO-Link
(http://support.automation.siemens.com/WW/view/en/54375430)" on the internet.