User Manual

3RR2 current monitoring relays
4.4 3RR21 current monitoring relays
3UG4 / 3RR2 monitoring relays
54 Manual, 02/2013, NEB927043002000/RS-AA/002
Connections 3RR2142 (size S0)
3RR2142-1.... 3RR2142-2....
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 (1 ... 2.5 mm
2
),
2x (2.5 ... 10 mm
2
)
1x (1 ... 10 mm
2
)
– stranded
—
– finely stranded
– with conductor end processing
2x (1 ... 2.5 mm
2
),
2x (2.5 ... 6 mm
2
),
1x 10 mm
2
1x (1 ... 6 mm
2
)
– without conductor final cutting
— 1x (1 ... 6 mm
2
)
• for AWG conductors for main contacts
2 x (16 ... 14),
2x (14 ... 8)
1x (18 ... 8)
• 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