SIEMENS
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Siemens IC 10 · 2017
SIRIUS 3SE5, 3SE2 Mechanical Safety Hinge Switches
General data
12
■
Overview
3SE5 hinge switches have the same enclosures as the
3SE5 position switches (modular system).
Hinge switches
Design
Enclosure sizes
The 3SE5 switches are available as complete units in two
enclosure sizes:
• Plastic enclosures according to EN 50047, 31 mm wide, IP65,
1 cable entry
• Metal enclosure according to EN 50047, 31 mm wide,
IP66/IP67, 1 cable entry
• Plastic and metal enclosures according to EN 50041, 40 mm
wide, IP66/IP67, 1 cable entry
Enclosure versions
Various basic versions can be selected for the enclosures:
•
With two or three-pole switching elements designed as
snap-action contacts
•
AS-Interface version with integrated ASIsafe electronics for all
enclosure designs
(see page 12/106)
For a description of the basic switches,
see page 12/5
.
Operating mechanism
The hinge switches are provided for mounting on hinges. The
actuator head is included in the scope of supply. There are two
versions:
•
Operating mechanism with hollow shaft, inner diameter 8 mm,
outer diameter 12 mm
•
Operating mechanism with solid shaft, diameter 10 mm
3SE2283 hinge switches
The 3SE2283 hinge switches with integrated hinge are available
in a special design. They are particularly suitable for use in
machine doors and flaps.
■
Benefits
The 3SE5 hinge switches differ from the previous series through
the following new characteristics:
•
All actuators can be turned around the axis in increments of
22.5°
(see picture, page 12/6)
.
•
The new three-pole contact block 1 NO + 2 NC is available for
all enclosure sizes
(see picture, page 12/6)
.
•
The plastic enclosure with a width of 31 mm has simple and
fast wiring equipment which makes it possible to save
approx. 20 to 25 % of the time when connecting
(see picture, page 12/6)
.
•
The ASIsafe electronic component is integrated in the
enclosure for the versions with AS-Interface connection
(see page 12/91)
; an additional adapter is not required.
■
Application
The hinge switches are used in those areas where the position of
swiveling protective devices such as doors or flaps must be
monitored. With these switches, the position of the doors and
flaps is converted into electric signals. The switches allow
shutdown and signaling without delay in the event of a small
opening angle through the snap-action contacts with an
operating angle of 10°.
Devices are available with enclosure versions to suit the
particular ambient conditions. Different control tasks can be
performed with the contact blocks best suited for the particular
purpose. Dimensions and fixing points of the enclosures 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 ensured by the use of molded-plastic screw glands.
Safety position switches
For controls according to IEC 60204-1 or EN 60204-1 the
devices can be used as a safety position switch. To secure
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 IEC 60947-5-1
with the symbol
q
.
Category 4 according to EN ISO 13849-1 can be attained with
the 3SE5 hinge switches with
q
if the corresponding fail-safe
evaluation units are selected and correctly installed, e.g. the
3SK or 3TK28 safety relays or matching devices from the
ASIsafe, SIMATIC or SINUMERIK product ranges.
© Siemens AG 2016