Accessories
13.2 Accessories for 3UG4 monitoring relays
3UG4 / 3RR2 monitoring relays
332
Manual, 05/2016, NEB927043002000/RS-AC/004
13.2.4
Summation current transformer for the 3UG4624 monitoring relay
Description
The 3UL22 summation current transformers acquire residual current in machines and plants.
Together with the 3UG4624 residual current monitoring relay or the motor management and
control unit SIMOCODE 3UF, residual current monitoring and ground-fault monitoring are
possible. The 3UL22 summation current transformer is available in three sizes with a
bushing opening of ∅
40
mm, ∅
65
mm and ∅
120 mm.
Image 13-6 3UL22 summation current transformers
Type
a
1
a
2
a
3
a
4
a
5
a
6
b
1
b
2
b
3
b
4
b
5
c
1
c
2
c
3
3UL2201 100
75
10
15
for M4 80
85
72,5 42,5 7,5
40
65
50
40
3UL2202 125
95
10
15
for M4 100 110
97,5 55
7,5
65
70
60
45
3UL2203 200
165
20
20
for M4 170 200
100
100
10
120
85
70
55
Technical data
Table 13- 10 Technical data - 3UL22 summation current transformer
Order number
3UL2201
3UL2202
3UL2203
Rated insulating voltage Ui
(50/60 Hz) V AC
690
1000
Rated residual current IΔn
without a response delay
A
0,3 ... 1
0,3 ... 40
0,3 ... 40
Permissible ambient temperature
°C
-20 ... +70
Feed-through opening
mm
40
65
120
For Protodur cable
push-through
max. mm
2
4 x 95
4 x 240
8 x 300
