SIEMENS
12/52
Siemens IC 10 · 2017
SIRIUS 3SE5, 3SE2 Mechanical Safety Switches
With Separate Actuator
General data
12
■
Benefits
The 3SE5 safety switches with separate actuator differ from the
previous series through the following new
characteristics:
•
All enclosure sizes with increased corrosion protection.
•
All enclosure sizes are optionally available with an LED
signaling indicator.
•
The three-pole contact block 1 NO + 2 NC is available for all
enclosure sizes.
•
The plastic enclosure has simple and fast wiring equipment
which makes it possible to save approx. 20 to 25 % of the time
when connecting.
•
The ASIsafe electronic component is integrated in the
enclosure for the versions with AS-Interface connection
(see page 12/99)
; an additional adapter is not required.
■
Application
Safety switches with separate actuator are used where the posi-
tion of doors, covers or protective grilles must be monitored for
safety reasons.
The safety switch can only be operated with the matching coded
actuator. Simple overruling by hand or auxiliary devices is
impossible.
Devices are available with enclosure versions to suit the partic-
ular ambient conditions. The high-grade steel actuator IP69(K)
with optimized geometry is suitable for extreme environmental
conditions as low as minus 40 degrees. Different control tasks
can be performed with the best contact blocks suited for the
particular purpose. Dimensions, fixing points of the enclosure
are in accordance with EN 50041 or EN 50047 standards. The
devices are suitable for use in any climate.
Standards
IEC 60947-5-1 or EN 60947-5-1.
The protective measure of "total insulation" by the molded-plastic
enclosure is guaranteed by the use of molded-plastic screw
glands.
Safety position switches
For controls according to IEC 60204-1 or EN 60204-1 the de-
vices can be used as a safety position switch. They comply with
the standard EN ISO 14119. A TÜV certificate is available. To se-
cure position switches against changes in their position, keyed
techniques must be employed on installation.
Safety circuits
Standards IEC 60947-5-1 and EN 60947-5-1 require positive
opening of the NC contacts. In other words, for the purposes of
personal safety, the assured opening of NC contacts is
expressly stipulated for the electrical equipment of machines in
all safety circuits and marked in accordance with the standard
IEC 60947-5-1 with the symbol
q
.
Category 3 according to EN ISO 13849-1 can be attained with a
safety switch with separate actuator if the corresponding
fail-safe evaluation units are selected and correctly installed,
e.g. the 3SK, 3TK28 safety relays or matching units from the
ASIsafe, SIMATIC or SINUMERIK product ranges.
Category 4 can be achieved when using an additional
3SE5 safety switch.
■
Technical specifications
Type
3SE51..-..V.., 3SE52..-..V..
3SE2257-.XX..
3SE2243-.XX..
General data
Standards
IEC 60947-5-1, DIN EN 60947-5-1, DIN EN ISO 14119
Rated insulation voltage
U
i
V
400
500
Degree of pollution
according to IEC 60664-1
Class 3
Class 3
Rated impulse withstand voltage
U
imp
kV
6
Rated operational voltage
U
e
V
400 AC;
over 300 V AC
Same potential only
500 AC;
over 380 V AC
Same potential only
Conventional thermal current
I
th
A
6
10
Rated operational current
I
e
2-pole
3-pole
1-pole
3-pole
• With alternating current 50/60 Hz
I
e
/ AC-15
I
e
/ AC-15
I
e
/ AC-12
I
e
/ AC-15
I
e
/ AC-12
I
e
/ AC-15
-
At 24 V
A
6
6
10
10
10
10
-
At 125 V
A
6
6
10
10
10
10
-
At 230 V
A
3
1.5
10
6
10
4
-
At 400 V
A
--
--
10
4
10
4
-
At 500 V
A
--
--
10
3
10
3
• For direct current
I
e
/ DC-13
I
e
/ DC-13
I
e
/ DC-12
I
e
/ DC-13
I
e
/ DC-12
I
e
/ DC-13
-
At 24 V
A
3
3
10
10
10
10
-
At 125 V
A
0.55
0.55
--
--
--
--
-
At 230 V
A
0.27
0.27
--
--
--
--
-
At 110 V
A
--
--
4
1
4
1
-
At 220 V
A
--
--
1
0.4
1
0.4
-
At 440 V
A
--
--
0.5
0.2
0.5
0.2
Short-circuit protection
• With DIAZED fuse links, operational class gG
A
6
6
• With fuse links, quick
A
--
10
• With miniature circuit breaker, Char. C (I
K< 400A
)
A
1
--
Mechanical endurance
1 ×10
6
operating cycles
Electrical endurance
• With 3RH.1, 3RT contactors in size S00, S0
1 ×10
6
operating cycles
> 1 ×10
6
operating cycles
• For utilization category AC-15 when
switching off
I
e
/ AC-15 at 240 V
100 000 operating cycles
500 000 operating cycles
Switching frequency
With 3RH.1, 3RT contactors in size S00, S0
6 000 operating cycles/h
Minimum pull-out force
for positive opening
N
20
10
30
© Siemens AG 2016