Technical information

2/6
1SDC210033D0202
XT2
TMD/TMA
In [A] 1.6
(1)
2
(1)
2.5
(1)
3.2
(1)
4
(1)
5
(1)
6.3
(1)
8
(1)
10
(1)
12.5
(1)
16 20 25 32 40 50 63 80 100 125 160
Neutral [A] - 100% 1.6 2 2.5 3.2 4 5 6.3 8 10 12.5 16 20 25 32 40 50 63 80 100 125 160
I
1
= 0.7…1xIn
Neutral [A] - 50% – – – – – – – – – – –––– –––––80100
TMD 16 20 25 32 40 50 63 80 100 125 300 300 300 320
TMA 300…
400
300…
500
300…
630
400…
800
500…
1000
625…
1250
800…
1600
Neutral [A] - 100% 16 20 25 32 40 50 63 80 100 125 300 300 300 320 300…
400
300…
500
300…
630
400…
800
500…
1000
625…
1250
800…
1600
Neutral [A] - 50% – – – – – – – – – – –––– –––––400…
800
1000…
2000
(1)
Available only as complete circuit-breaker
XT4
TMD/TMA
In [A] 16 20 25 32 40 50 63 80 100 125 160 200 225 250
Neutral [A] - 100% 16 20 25 32 40 50 63 80 100 125 160 200 225 250
I
1
= 0.7…1xIn
Neutral [A] - 50% –––– –––––80100125125160
TMD 300 300 300 320
TMA 300…
400
300…
500
315…
630
400…
800
500…
1000
625…
1250
800…
1600
1000…
2000
1125…
2250
1250…
2500
Neutral [A] - 100% 300 300 300 320 300…
400
300…
500
315…
630
400…
800
500…
1000
625…
1250
800…
1600
1000…
2000
1125…
2250
1250…
2500
Neutral [A] - 50% – – – – –––––315…
630
500…
1000
625…
1250
625…
1250
500…
1000
TMD/TMA
Main characteristics:
Q available for XT2 and XT4 in the three-pole and four-pole versions;
Q protections:
– against overload (L): adjustable protection threshold from 0.7...1xIn, with inverse long time
trip curve;
– against instantaneous short-circuit (I):
- fi xed protection threshold for In)32A,
- adjustable threshold beteewn 8…10xIn for 40A,
- adjustable threshold beteewn 6…10xIn for 50A,
- adjustable threshold beteewn 5…10xIn for In*63A;
Q 100% neutral protection in four-pole circuit-breakers. 50% neutral protection is only available for
In*125A;
Q the thermal and magnetic protection settings are made by turning the relative cursors on the
front of the release.
Circuit-breakers for power distribution
Thermomagnetic trip units
Rotary switch for magnetic
protection setting
Rotary switch for thermal
protection setting
Example with XT4 250A