8 / 44
8 Moulded Case Breakers 0115
ABB Low Voltage
Icc = 50 kA
T5S
XT4S
T5S
Total selectivity
Back-up 50 kA
6 SACE Tmax Moulded-case circuit-breakers
| ABB
1
1
1
1
3
3
T5S 630 PR221DS LS/I 3p
Electronic trip unit PR221DS LS/I for AC applications.
Features a protection L function against overload with
adjustable current, (I
1
= 0.4…1xIn), and timing. Protection
against short-circuit can be delayed (S), with an adjustable,
or instantaneous delay (I). The tripping threshold is adjust-
able in both cases (I
2
, I
3
= 1…10xIn).
XT1 160 TMD 3p with RC Sel
Thermomagnetic trip unit TMD for AC/DC applications. Ther-
mal protection is adjustable I
1
= 0.7…1xIn,
magnetic protection is fixed I
3
=10xIn.
XT4 250 TMA 3p
Thermomagnetic trip unit TMA for AC/DC
applications. Thermal protection is adjustable I
1
= 0.7…1xIn,
magnetic protection is adjustable I
3
= 5…10xIn.
RC SEL is a selective residual current release for assembly
in conjunction with the circuit-breaker. It has adjustable cur-
rent thresholds and 2xI
∆
n adjustable non-actuating times.
A single family of moulded-case circuit-breakers up to 3200 A
Distribution solutions
2
Power breakers
Distribution solutions
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t
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XT1 160 TMD 3p with RC Sel
Thermomagnetic trip unit TMD for AC/DC applications. Ther-
mal protection is adjustable I = 0.7…1xIn,
ti
t ti
i fi
I
3
I .
A 3p
omagnetic trip unit TMA fo
li
ti
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l
t ti
i j
t l I
1
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magnetic protection is adjustable I = 5…10xIn.
i l
ti
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I
T5S
T5S
l l
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-
6 SACE Tmax Moulded-case circuit-breakers
| ABB
1
1
1
3
3
/I
Electronic trip unit PR221DS LS/I for AC applications.
Features a protection L function against overload ith
adjustable current, (I
1
= 0.4…1xIn), and timing. Protection
against short-circuit can be delayed (S), ith an adjustable,
or instantaneous delay (I). The tripping threshold is adjust-
able in both cases (I
2
, I
3
= 1…10xIn).
it
l
r
ti tri it
f r
/
li
ti
. Ther-
mal protection is adjustable I
1
= 0.7…1xIn,
agnetic protection is fixed I
3
=10xIn.
Ther
ti tri it
f r AC/DC
applications. Ther al protection is adjustable I
1
= 0.7 1xIn,
ti r t ti
i j
t l I
3
I .
RC SEL is a selective residual current release for asse bly
in conjunction ith the circuit-break r. It h s adjustable cur-
rent thresholds and 2xI n adjustable non-actuating ti es.
i
l f
il f
l
i
i
i
i
i
l i
2
1
- XT4 250 TMA 3p
Thermomagnetic trip unit TMA for AC/DC
applications. Thermal protection is adjustable I
1
= 0.7…1xIn,
magnet c protection is adjus able I
3
= 5…10xIn.
2
- XT1 160 TMD 3p with RC Sel
Thermomagnetic trip unit TMD for AC/DC applications.
Thermal protection is adjustable I
1
= 0.7…1xIn,
magnetic pr tection is fixed I
3
=10xIn.
3
- T5S 630 PR221DS LS/I 3p
Electronic trip unit PR221 S LS/I for AC applications.
Features a protection L function against overload with
adj stable current, (I
1
= 0.4…1xIn), nd timing. Protection
against short-circuit can be delayed (S), with an adjustable,
or tantaneous delay (I). Th tripping threshold is adjustable
in bo h cases (I
2
, I
3
= 1…10xIn).
RC SEL is a selective residual current release for assembly
in conjunction with the circuit-breaker. It has adjustable current
thresholds and 2xI n adjustable non-actuating times.