SCHURTER GmbH
D – 79346 Endingen
www.schurter.com
Product Manual
PSE NO Switch
CONTENTS
CONTENTS ............................................................................................................................. 1
1
1.1
1.2
PRODUCT DESCRIPTION ............................................................................................... 3
Functional Description: NO Switch .........................................................................................................3
Functional Description: Illumination .......................................................................................................4
2
2.1
2.2
2.3
2.4
2.5
TECHNICAL DATA AND DIMENSIONAL DRAWINGS ................................................... 5
Technical Data ...........................................................................................................................................5
Component dimensions ............................................................................................................................7
Hole Dimensions ......................................................................................................................................13
Switching Symbols: Illumination ...........................................................................................................14
Accessories ..............................................................................................................................................16
3
3.1
3.2
3.3
3.4
3.5
ORDER NUMBERS ........................................................................................................ 17
M16 Series ................................................................................................................................................17
M19 Series ................................................................................................................................................17
M22 Series ................................................................................................................................................17
M22 / M24 / M27 / M30 with Ring Illumination .......................................................................................18
Lettering: ..................................................................................................................................................20
4
5
5.1
5.2
5.3
5.4
PACKAGING .................................................................................................................. 22
QUALIFICATION TESTS ................................................................................................ 23
IP Protection Class ..................................................................................................................................23
IK Protection Class ..................................................................................................................................23
Salt-Spray Test .........................................................................................................................................23
Hygienic Switches for Food Processing Equipment ...........................................................................23
Changes that contribute to technical improvement are subject to alternations.
Page
1 of 24
Date of issue
19.05.2008
Author:
SHO
Date of change:
23.08.11
Changed by:
SHO
Change No.
10474
Datasheet No.
Index
105.9524.200
f
Print date: 23/08/2011 15:28:00
SCHURTER GmbH
D – 79346 Endingen
www.schurter.com
6
7
APPROVALS .................................................................................................................. 24
COMPLIANCE ................................................................................................................ 24
Changes that contribute to technical improvement are subject to alternations.
Page
2 of 24
Date of issue
19.05.2008
Author:
SHO
Date of change:
23.08.11
Changed by:
SHO
Change No.
10474
Datasheet No.
Index
105.9524.200
f
Print date: 23/08/2011 15:28:00
SCHURTER GmbH
D – 79346 Endingen
www.schurter.com
1
-
-
-
-
-
PRODUCT DESCRIPTIO N
Variety of design options concerning size, colour, shape, illumination, connection or lettering
especially ideal for use in harsh environments
high reliability, long lifetime with more than 30 mill. actuations
no maintenance costs, since no mechanical wear parts
easy to clean due to a tightly closed surface (IP 69K)
1.1
Functional Description: NO Switch
The piezo switch is based on the functional principle of the piezoelectric crystal. The action of force
on the piezo disk causes a voltage to be induced due to a charge transfer. The voltage generated
is converted by the electronic connection into a polarity-neutral, electronic switch contact.
During the voltage drop, the electronic switch contact is closed for the specified pulse duration.
After this, the electronic switch contact opens again, even if the force is still present. The period
that the electronic switch contact remains closed depends on the actuating speed and force as well
as on the duration of actuation.
Diagram of an NO switch:
The piezo disk is connected to the terminals 1 and 2. The electric circuit to be switched is
connected at the terminals 3 and 4. This can be either direct voltage (DC) or alternating voltage
(AC). If a pulse is applied to the piezo disk, terminal 1 becomes positive in relation to terminal 2 due
to the voltage generated. The integrated switching element controls the electric circuit to be
switched.
In the neutral position of the piezo switching element, the terminals 3 and 4 are non-conductive,
and initial contact resistance is greater than 10 MOhm. When the piezo disk is actuated, the initial
contact resistance is reduced to less than 20 Ohm.
When actuating the piezo disk, the resistance between terminals 3 and 4 is therefore changed from
high resistance
low resistance
high resistance.
This corresponds in principle to the function of a conventional
NO pushbutton switch.
Changes that contribute to technical improvement are subject to alternations.
Page
3 of 24
Date of issue
19.05.2008
Author:
SHO
Date of change:
23.08.11
Changed by:
SHO
Change No.
10474
Datasheet No.
Index
105.9524.200
f
Print date: 23/08/2011 15:28:00
SCHURTER GmbH
D – 79346 Endingen
www.schurter.com
1.2
Functional Description: Illumination
Ring Illumination
Single or bi-colored ring illumination is possible for the PSE switches.
When equipped with two colors, it is possible to either switch between the colors or to achieve a
combination color, depending on the type of activation.
For example: Diodes of group 1 = red and diodes of group 2 = green
Only group 1 is activated
Only group 2 is activated
Both groups are activated at the same time
Red cable
Green cable
Black cable
White cable
=
=
=
=
Ring has red illumination
Ring has green illumination
Ring has orange illumination
Supply voltage: red LEDs
Supply voltage: green LEDs
Minus for all LEDs
Switch contact
Terminal layout
see page 14 section 2.4 Switching Symbols Illumination
Special type 5 VDC upon request
Point Illumination
When illuminating the PSE switch, either a single-color LED (2 pins) is used or a bi-colored LED (3
pins). If a single-color LED is used, cable No. 2 is not needed (see section 2.4 Switching Symbols:
Illumination – Point Illumination).
Switching between colors can be achieved by appropriate activation.
Changes that contribute to technical improvement are subject to alternations.
Page
4 of 24
Date of issue
19.05.2008
Author:
SHO
Date of change:
23.08.11
Changed by:
SHO
Change No.
10474
Datasheet No.
Index
105.9524.200
f
Print date: 23/08/2011 15:28:00
SCHURTER GmbH
D – 79346 Endingen
www.schurter.com
2
2.1
TECHNICAL DAT A AND DIMENSION AL DRAWINGS
Technical Data
Electrical Data
Switching Voltage max.
Switching Current max.
Rated Breaking Capacity
Lifetime
(at Rated Breaking Capacity)
Switch resistance off
(OFF=not actuated)
Switch resistance on
(Ta=25°C) (ON=actuated)
Capacity
NO Pulse Time
(depending on the actuating force, time and speed)
(VAC/DC)
(mA)
(W)
(Mio.)
(MΩ)
(Ω)
(nF)
(ms)
42/60
100
1
20
>10
<20
5
20-1000
polarity-free
NO switch
Contact Configuration
Switch Function
Mechanical Data
Actuating Force
(at ambient temperature)
Actuating Travel
Torque
IK Protection Class
(N)
(mm)
(Nm)
(IK)
≤3
1)
0.002
2.5
02
Climatic Data
Operating Temperature
Storage Temperature
IP Degree of Protection Front Side hose water
(1m water column)
(IEC/DIN/EN 60529)
(°C)
(°C)
(IP)
(IP)
-40 to +85
-40 to +85
67
69K
IP Degree of Protection Front Side submerged
(DIN 40050-9:1993 High-pressure cleaning test)
Degree of Protection
DIN EN 60069-2-30 Db
(Moist heat (air test with 55°C / 93% humidity)
front side /
rear side
1)
At temperatures lower than -10°C, the actuating force increases 2- to 4-fold.
Changes that contribute to technical improvement are subject to alternations.
Page
5 of 24
Date of issue
19.05.2008
Author:
SHO
Date of change:
23.08.11
Changed by:
SHO
Change No.
10474
Datasheet No.
Index
105.9524.200
f
Print date: 23/08/2011 15:28:00
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