Technical information

2/22
1SDC210033D0202
TMG
Main characteristics:
Q available for XT2 and XT3 in the three-pole and four-pole versions;
Q protections:
– against overloads (L): adjustable 0.7...1xIn protection threshold, with inverse long-time trip
curve;
– against instantaneous short-circuits (I): fi xed 3xIn protection threshold, with instantaneous
trip curve;
– 100% neutral protection in four-pole circuit-breakers;
Q the thermal protection setting is made by turning the relative cursor on the front of the release.
XT2
TMG
In [A] 16
(1)
20
(1)
25
(1)
32
(1)
40
(1)
50
(1)
63
(1)
80 100 125 160
Neutral [A] - 100% 16 20 25 32 40 50 63 80 100 125 160
I
1
= 0.7…1xIn
I
3
[A] 160 160 160 160 200 200 200 240 300 375 480
Neutral [A] - 100% 160 160 160 160 200 200 200 240 300 375 480
I
3
= 3xIn
(1)
Available only as complete circuit-breaker
XT3
TMG
In [A] 63 80 100 125 160 200 250
Neutral [A] - 100% 63 80 100 125 160 200 250
I
1
= 0.7…1xIn
I
3
[A] 400 400 400 400 480 600 750
Neutral [A] - 100% 400 400 400 400 480 600 750
I
3
= 3xIn
Rotary switch for thermal
protection setting
Example with XT3 250A
Circuit-breakers for generator protection
Main characteristics