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3VT5 Molded Case Circuit Breakers up to 1600 A
Accessories and Components
Overcurrent releases
6/22
Siemens LV 36 · 2008
6
Overcurrent releases ETU UP-Universal
Protecting complicated loads or those not specified in advance
The 3VT9 5..-6AD00 release is intended only for the
3VT5 716-3AA3.-0AA0 switching unit. The release is equipped
with a thermal memory that can be disabled by turning a “re-
start” switch on the front panel from the position T
(t)
to position
T
(0)
. After disabling the thermal memory, the thermal release re-
mains active.
A practical advantage of the release is its maximum flexibility for
adjusting the tripping characteristic. With its possibility for
setting
I
2
t = constant and
I
5
t = constant, it is optimal from the
selectivity viewpoint for its interaction with fusing devices.
The reaching of 80% and 110% of
I
r
is indicated by LED diodes
on the front panel denoted as
I
> 80% of
I
r
and
I
> 110% of
I
r
.
On the bottom part of the release cover are photocells for com-
municating with the 3VT9 500-6AE00 signalling unit.
Adjustable specifications
Order No.
Rated
current
I
n
Overload
protection
I
r
t
r
(7.2 x
I
r
) short delayed
short circuit
protection
I
sd
A = (n x
I
r
)
t
sd
I
2
t Restar
t
Instantaneous
short circuit
protection
I
A
s
n
ms
kA
250, 260 0.5
2
50, 100
0.8
275, 290 3
3
200, 300 on T
(0)
1.5
305, 315 5
5
400, 600
2
3VT9 563-6AD00 630
345, 360 7
7
800, 1000
2.5
400, 435 10
8
50, 100
4.5
455, 480 15
9
200, 300 off T
(t)
6
500, 550 20
10
400, 600
7.5
575, 630 25
∞
800, 1000
10
400, 435 0.5
2
50, 100
1.25
455, 480 3
3
200, 300 on T
(0)
2
500, 550 5
5
400, 600
3
3VT9 510-6AD00 1000 575, 630 7
7
800, 1000
5
630, 685 10
8
50, 100
7
720, 760 15
9
200, 300 off T
(t)
9
800, 870 20
10
400, 600
12
910, 1000 25
∞
800, 1000
15
500, 550 0.5
2
50,1 00
1.5
577, 610 3
3
200, 300 on T
(0)
3
630, 685 5
5
400, 600
5
3VT9 512-6AD00 1250 722, 760 7
7
800, 1000
7
800, 866 10
8
50, 100
9
909, 1000 15
9
200, 300 off T
(t)
12
1100, 1155, 20
10
400, 600
15
1200, 1250 25
∞
800, 1000
18
630, 685 0.5
2
50, 100
2
720, 800 3
3
200, 300 on T
(0)
4
870, 910 5
5
400, 600
6
3VT9 516-6AD00 1600 1000, 1100 7
7
800, 1000
8
1155, 1200 10
8
50, 100
11
1250, 1300 15
9
200, 300 off T
(t)
14
1375, 1445 20
10
400, 600
17
1500, 1600 25
∞
800, 1000
20