Siemens 3UG4 - Page 82

3RR2 current monitoring relays
4.5 3RR22 current monitoring relays
3UG4 / 3RR2 monitoring relays
82 Manual, 05/2016, NEB927043002000/RS-AC/004
Connections 3RR2241 (size S00)
3RR2241-1....
3RR2241-2....
Design of the electrical connection
• for main current circuit
screw-type terminals spring-loaded terminals
• for auxiliary and control current circuit
screw-type terminals spring-loaded terminals
Product function
• removable terminal for main circuit
No
• removable terminal for auxiliary and
control circuit
Yes
Type of the connectable conductor cross-
section
• for main contacts
– solid
2x (0.5 ... 1.5 mm
2
),
2x (0.75 ... 2.5 mm
2
),
2x (1 ... 4 mm
2
)
1x (0.5 ... 4 mm
2
)
– stranded
—
– finely stranded
– with conductor end processing
2x (0.5 ... 1.5 mm
2
),
2x (0.75 ... 2.5 mm
2
)
1x (0.5 ... 2.5 mm
2
)
– without conductor final cutting
— 1x (0.5 ... 2.5 mm
2
)
• for AWG conductors for main contacts
1x 12, 2x (20 ... 14) 1x (20 ... 12)
• for auxiliary contacts
– solid
1x (0.5 ... 4 mm
2
),
2x (0.5 ... 2.5 mm
2
)
– finely stranded
– with conductor end processing
1x (0.5 ... 2.5 mm
2
),
2x (0.5 ... 1.5 mm
2
)
2x (0.25 ... 1.5 mm
2
)
– without conductor final cutting
— 2x (0.25 ... 1.5 mm
2
)
• for AWG conductors for auxiliary
contacts
2x (20 ... 14) 2x (24 ... 16)
Tightening torque
• with screw-type terminals
N·m
0.8 … 1.2
Verification of suitability
CE / UL / CSA