Bernstein Separate Actuator Catalog
4
Safety Switches with Separate Actuator
SKT
Safety switches with separate actuator are positive opening position
switches. In terms of design, the switching element and actuator
are separated. On actuation, the switching element and actuator
are either brought together or separated. The positive opening
M4
5.5
(0.22")
NC contact is always open when the actuator is withdrawn. These
switches are assigned to Type 2.
BERNSTEIN offers various versions of these Type 2 switches.
M5
(0.16")
22
(0.87")
23
(0.91")
(0.08")
2
The differences and advantages of the individual switch groups
are outlined in the following.
The SKT is the smallest safety switch with a separate actuator. It is
R
150 mm
min
Actuating forces FE to FI50
particularly suited for applications that require an extremely slim and
short switch design. Its rotary head, two actuator openings and various
switching functions underscore its versatility in extremely confined
spaces.
Added to this, the SKT features other options to meet any
requirements:
z Integrated eject function (FE):
The actuator is ejected if the door is not locked securely.
Consequently, the safety contact is opened, thus preventing
the machine from starting up. In addition, this function makes
it apparent that the door still needs to be locked.
z Actuating force (up to 50 N):
The standard actuating force is 10 N. Depending on the switch
variant, an actuating force of 50 N can also be selected. In many
applications, hatches and doors need to be secured to prevent
them being opened unintentionally. This is achieved by means
of bolts, fasteners or other latching mechanisms. The SKI safety
switch should be selected for applications requiring increased
actuating force.
z Universal Hinged Actuator (MRU):
The MRU actuator is ideally suited for applications where the
installation conditions severely restrict the actuating travel or
radius. It has an adjustable actuating radius in the horizontal
and vertical plane.
74
Technical data
Electrical data
Rated insulation voltage Ui max. 250 V
Rated operating voltage Ue max. 240 V AC
Conventional thermal current
Utilization category
Mechanical data
Switching frequency ≤ 30/min
Mechanical service life Standard
Mechanical service life encreased actuator holding force
B10d
Short-circuit protection Fuse 6 A gL/gG
Protection class II, Insulated
Ambient temperature –30 °C to + 80 °C
Protection class IP 65 conforming to IEC/EN 60529
Type of connection Screw connections
Conductor cross sections
Enclosure
Cable entry M16 x 1.5
Standards
VDE 0660 T100, DIN EN 60947-1, IEC 60947-1
VDE 0660 T200, DIN EN 60947-5-1, IEC 60947-5-1
Depending on switching system. See Table on Pages 70 – 73.
(up to)
I
the
10 A
AC-15, Ue/Ie 240 V / 3 A;
DC-13, Ue/Ie 250 V / 0.27 A
1 x 106 switching cycles
1 x 105 switching cycles
2 Mill.
Single-wire 0.5 – 1.5 mm2 or Stranded wire with ferrule 0.5 – 1.5 mm
Thermoplastic,
glass fibre-reinforced (UL94-V0)
2
SKI
The SKI is the slimline version of a safety switch with a separate
actuator. It is based on the BERNSTEIN I88 family. Its dimensions,
not including the actuating head, correspond to EN 50047.
The actuating head is rotary mounted and has two actuator
openings. The SKI safety switch is predestined for installation on
section structures and in applications with confined installation
conditions. Compared to the SKT, it offers more connection space
for the wiring and variants with up to three switching contacts
available.
30
(1.18")
(0.44")
11.25
(0.20")
5
(0.31")
8
20
(0.79")
22
(0.87")
(0.15")
4
(2.44")
62
M20
31
(1.22")
R
in setting directions 50 mm
min
Actuating forces FE to FI50
R min. 150
(5.91")
ˇ 4
(0.16")
100
(3.94")
6.5
(0.26")
23
(0.91")
30.5
(1.20")
R min. 150
(5.91")
16
(0.63")
0
s
(0.31")
8
(0.06")
1.5
Other advantages of this series include:
z Integrated eject function (FE):
The actuator is ejected if the door is not locked securely.
Consequently, the safety contact is opened, thus preventing
the machine from starting up. In addition, this function makes
it apparent that the door still needs to be locked.
z Actuating force (up to 50 N):
The standard actuating force is 10 N. Depending on the switch
variant, an actuating force of 50 N can also be selected. In many
applications, hatches and doors need to be secured to prevent
them from being opened unintentionally. This is achieved by
means of bolts, fasteners or other latching mechanisms. The
SKI safety switch should be selected for applications requiring
increased actuating force.
z Universal radius actuator (MRU):
The MRU actuator is ideally suited for applications where the
installation conditions severely restrict the actuating travel or
radius. It has an adjustable actuating radius in the horizontal
and vertical plane.
Technical data
Electrical data
Rated insulation voltage Ui max. 250 V AC
Rated operating voltage Ue max. 240 V
Conventional thermal current
(up to)
Utilization category
(up to)
Mechanical data
Switching frequency ≤ 30/min.
Mechanical service life Standard
Mechanical service life encreased actuator holding force
B10d
(up to)
Short-circuit protection Fuse 6 A gL/gG
Protection class II, Insulated
Ambient temperature –30 °C to + 80 °C
Protection class IP 65 conforming to IEC/EN 60529
Type of connection Screw connections
Conductor cross sections
Enclosure
Cable entry 1 x M20 x 1.5
Standards
VDE 0660 T100, DIN EN 60947-1, IEC 60947-1
VDE 0660 T200, DIN EN 60947-5-1, IEC 60947-5-1
Depending on switching system. See Table on Pages 70 – 73.
I
the
10 A
AC-15, Ue /Ie 240 V / 3 A
1 x 106 switching cycles
1 x 105 switching cycles
2 Mill.
Single-wire 0.5 – 1.5 mm2 or Stranded wire with ferrule 0.5 – 1.5 mm
Thermoplastic,
glass fibre-reinforced (UL94-V0)
2
75
Safety Switches with Separate Actuator
SK
The SK safety position switch is an industry standard and can
be used in virtually any application.
Thanks to design safety features conforming to VDE 0660 T200,
IEC 60947-5-1 and the test regulations GS-ET 15, the SK is
particularly suitable for personal protection applications. Its
versatility is enhanced by the variable actuator head and two
actuator openings.
Other decisive advantages include:
z Different actuating forces:
Corresponding to your specific application, in addition to
the standard 10 N, you can also choose an actuating force
of 5, 20 or 30 N.
Actuating forces from 30 to 100 N can be realised with the
aid of additional components that are mounted on the
outside of the switch.
z Anti-tamper facility:
The switching system is protected by multiple coding to
ensure enhanced safety of your application.
z Outstanding handling:
With the two slots you can easily adjust the SK safety switch
and lock it in position by means of the two holes accessible from
the top or the two holes accessible from the front. The switch
can be wired from three different sides. A transparent cover
prevents foreign particles from entering the contact space while
connecting the power supply cable.
76
50 mm to direction
of adjustment
Actuator: metal
Technical data
Electrical data
Rated insulation voltage (up to
Rated operating voltage Ue max. 240 V
Conventional thermal current (
Utilization category AC-15, Ue /Ie 240 V / 1.5 A
Mechanical data
Switching frequency ≤ 30/min
Mechanical service life 1 x 106 switching cycles
B10d
Short-circuit protection (up to
Protection class II, Insulated
Ambient temperature –30 °C ... + 80 °C
Protection class IP 65 conforming to IEC/EN 60529
Type of connection Screw connections
Conductor cross sections
Enclosure
Cable entry 3 x M20 x 1.5
Standards
VDE 0660 T100, DIN EN 60947-1, IEC 60947-1
VDE 0660 T200, DIN EN 60947-5-1, IEC 60947-5-1
Depending on switching system. See Table on Pages 70 – 73.
(bis zu)
)
up to
)
Ui max. 400 V AC
) I
the
2 Mill.
Fuse 10 A gL/gG
Single-wire 0.5 – 1.5 mm2 or
Stranded wire with ferrule 0.5 – 1.5 mm
Thermoplastic, glass fibre-reinforced (UL94-V0)
10 A
2
Cap
SKC
In terms of lengths, the SKC safety position switch is the 15 mm
shorter variant of the SK. This makes it the right choice for confined
installation conditions.
The SKC otherwise offers the same advantages as the SK:
Industrial standard with particular emphasis on safety, personal
protection and a variable actuator head with two actuator
openings.
Other decisive advantages include:
z Different actuating forces:
Corresponding to your specific application, in addition to
the standard 10 N, you can also choose an actuating force
of 5, 20, 30 or 50 N.
Actuating forces from 30 to 100 N can be realised with the
aid of additional components that are mounted on the
outside of the switch.
z Anti-tamper facility:
The switching system is protected by multiple coding to ensure
enhanced safety of your application.
z Outstanding handling:
With the two slots you can easily adjust the SKC safety switch
and lock it in position by means of the two holes accessible
from the top or the two holes accessible from the front. The
switch can be wired from three different sides. A transparent
cover prevents foreign particles from entering the contact
space while connecting the power supply cable.
R
150 mm (5.9")
min
Actuator: Metal
Technical data
Electrical data
Rated insulation voltage Ui max. 250 V AC
Rated operating voltage Ue max. 240 V
Conventional thermal current
Utilization category AC-15, Ue /Ie 240 V / 1.5 A
Mechanical data
Switching frequency ≤ 30/min.
Mechanical service life 1 x 106 switching cycles
B10d (up to
Short-circuit protection Fuse 6 A gL/gG
Protection class II, Insulated
Ambient temperature –30 °C ... + 80 °C
Protection class IP 65 conforming to IEC/EN 60529
Type of connection Screw connections
Conductor cross sections
Enclosure
Cable entry 3 x M16 x 1.5
Standards
VDE 0660 T100, DIN EN 60947-1, IEC 60947-1
VDE 0660 T200, DIN EN 60947-5-1, IEC 60947-5-1
Depending on switching system. See Table on Pages 70 – 73.
)
I
the
2 Mill.
Single-wire 0.5 – 1.5 mm2 or
Stranded wire with ferrule 0.5 – 1.5 mm
Thermoplastic, glass fibre-reinforced (UL94-V0)
5 A
2
77
Safety Switches with Separate Actuator
SKT SKI
Switching operation
1 NC / 1 NO contact
1 NC contacts
2 NC contacts
1 NC / 1 NO contact
Overlapping
Approvals
Standard
6016419059
SKT-U1Z M3
6016469066
SKT-A2Z M3
High actuating force
Radius actuation
Standard
6016819052
SKI-U1Z M3
6016869056
SKI-A2Z M3
6016869058
SKI-UV15Z M3
High actuating force
6016819139
SKI-U1Z FI50 M3
6016869145
SKI-UV15Z FI50 M3
Radius actuation
6016819123
SKI-U1Z MRU
6016869122
SKI-A2Z MRU
6016869131
SKI-UV15Z MRU
Special features / variants
(on request)
z Replacement actuator for:
3112850340
Special features / variants
(on request)
z Replacement actuator for:
Standard 3112850340
High actuating force 3112850340
Radius actuation 3911452058
78
SKC
8
(0.32")
30
(01.18")
33
(1.30")
29.1
(01.15")
M16x1.5
SK
52
(1.15")
(2.05")
40
(1.57")
7.9
(0.31")
29
(1.14")
27
Ø5.1
(0.20")
8
(0.31")
5.5
18.1
(0.71")
(0.22")
40
(1.57")
52
(2.05")
(1.07")
90
(3.54")
7
(0.28")
52
(2.05")
40
(1.57")
7.9
(0.31")
29
(1.14")
27
Ø5.1
(0.20")
8
(0.31")
5.5
(0.22")
18.1
(0.71")
40
(1.57")
52
(2.05")
(1.06")
75
(2.95")
7
(0.28")
8
(0.31")
30
(1.18")
33.5
(1.32")
29
M20x1.5
Standard
6016169039
SKC-A1Z M
High actuating force
6116169016
SKC-A1Z F30 M
Radius actuation
6016169087
SKC-A1Z MRU
Standard
6016119016
SK-U1Z M
6016169036
SK-A2Z M
6016169026
SK-UV15Z M
High actuating force
6116119109
SK-U1Z F30 M
6016169053
SK-A2Z F30 M
6016169061
SK-UV15Z F30 M
Radius actuation
6016119084
SK-U1Z MRU
6016169085
SK-A2Z MRU
6016169086
SK-UV15Z MRU
Special features / variants
(on request)
z 50 N and 100 N actuating force
on request
z Replacement actuator for:
Standard 3911452116
High actuating force 3911451914
Radius actuation 3911452058
Special features / variants
(on request)
z 100 N actuating force on request
z Replacement actuator for:
Standard 3911452116
High actuating force 3911451914
Radius actuation 3911452058
79
Loading...