MK11 + MK 11/M8 Series
Reed Sensor with
Screw Thread Enclosure
MEDER electronic
DESCRIPTION
MK11 sensors are magnetically operated Reed
Sensors with screw thread enclosure supplied with
interconnect cable. The sensor should be mounted
on a fixed surface with the actuating magnet on
the moving surface. Introduction or removal of the
magnetic field determines the closing and opening
of the Reed Switch.
APPLICATIONS
•
Piston end travel and position detection
•
End motion detection for linear drives
•
Machine industry
FEATURES
•
Stainless steel and plastics designs with thread
for space adjustment
•
High power switches available
•
Other cables, connectors and colors available
•
Various case sizes available
•
Five operate sensitivities available
•
A choice of cable terminations and lengths are
available
All dimensions in mm [inch]
MK11 (Stainless Steel)
MK11/M8 (Plastics)
DIMENSIONS
[0.276]
7.00
25.00
2 x plastics nut
Ø 4.50
[0.177]
[0.984]
Ø 6.00
3.00
[0.118]
[0.051]
1.30
[0.236]
[1.496]
6.00
38.00
[0.217]
5.50
fine thread M5 x 0.5
Thread M8 x 1,25
ws 13
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238
Ø 6.00
[0.236]
[0.236]
MEDER electronic
MK11 + MK11/M8 Series
Reed Sensor with
Screw Thread Enclosure
ORDER INFORMATION
Part Number Example
Series
Contact-
form
Switch-
model
Magnetic
Sensitivity
Cable
Length (mm)
Termination
MK11 -
1A66
MK11/M8 - 1A66
C - 500
C - 500
W
W
MK11 -
1A
XX
66
X
B, C, D, E
C, D, E
C, D, E
XXX
X
66
is the switch model
C
is the magnetic sensitivity
500
is the cable length (mm)
W
is the termination
1A
Options
1C
52, 85
90**
500*
W
* Other cable lengths available.
** Only for MK11/M8 (plastics).
MAGNETIC SENSITIVITY
Sensitivity Class
Pull In
AT Range
B
C
D
E
10 - 15
15 - 20
20 - 25
25 - 30
TERMINATION
For wire and termination details please consult factory.
W
The cable cut length includes:
5 mm of wire stripped and tinned.
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239
MK11 +MK11 /M8 Series
Reed Sensor with
Screw Thread Enclosure
MEDER electronic
CONTACT DATA (Stainless Steel + Plastics)
All Data at 20° C
Contact Ratings
Switching Power
Switching Voltage
Switching Current
Carry Current
Static Contact Resistance
Dynamic Contact Resistance
Insulation Resistance across
Contacts
Breakdown Voltage across
Contact
Operate Time incl. Bounce
Release Time
Capacitance
Contact Operation **
Must Operate Condition
Must Release condition
Environmental Data
Shock Resistance
Vibration Resistance
Ambient Temperature
Stock Temperature
Soldering Temperature
1/2 sinus wave duration 11 ms
From 10 - 2000 Hz
10°C/ minute max. allowable
10°C/ minute max. allowable
5 sec.
-20
-35
50
20
85
85
260
-20
-35
50
20
85
85
260
g
g
o
Switch Model
→
Contact Form
→
Conditions
Any DC combination of V & A not
to exceed their individual max.‘s
DC or peak AC
DC or peak AC
DC or peak AC
w/ 0.5 V & 10 mA
Measured w/ 0.5 V & 50 mA ,
1.5 ms after closure
100 volts applied
Voltage applied for 60 sec. min.
Measured w/ 100 % overdrive
Measured w/ no coil suppression
at 10 kHz cross contact
Switch 52
Form A
Min.
Typ.
Max.
50
70 (VA)
250
0.5
2.5
200
Switch 66
Form A
Min.
Typ.
Max. Units
10
200
0.5
1.25
150
200
W
V
A
A
mΩ
mΩ
Ω
VDC
0.5
0.1
0.2
ms
ms
pF
10
10
600
10
10
*
225*
1.0
0.1
0.2
Steady state field
Steady state field
10
4
30
27
10
4
60
54
AT
AT
C
C
C
o
o
Please note: The indicated electrical data are maximum values and can vary downwards when using a more sensitive switch.
* Insulation resistance of 10
12
and breakdown voltage of 480 VDC is available.
** These ranges refer to the uncut / unmodified Reed Switches described in our Reed Switch section. Consult factory if more
detail is required.
www.meder.com
240
MEDER electronic
MK11/+ MK11/M8 Series
Reed Sensor with
Screw Thread Enclosure
CONTACT DATA (only Plastics)
All Data at 20° C
Contact Ratings
Switching Power
Switching Voltage
Switching Current
Carry Current
Static Contact Resistance
Dynamic Contact Resistance
Insulation Resistance across
Contacts
Breakdown Voltage across
Contact
Operate Time incl. Bounce
Release Time
Capacitance
Contact Operation **
Must Operate Condition
Must Release condition
Environmental Data
Shock Resistance
Vibration Resistance
Ambient Temperature
Stock Temperature
Soldering Temperature
1/2 sinus wave duration 11 ms
From 10 - 2000 Hz
10°C/ minute max. allowable
10°C/ minute max. allowable
5 sec.
-20
-35
50
20
85
85
260
-20
-35
50
20
85
85
260
g
g
o
Switch Model
→
Contact Form
→
Conditions
Any DC combination of V & A not
to exceed their individual max.‘s
DC or peak AC
DC or peak AC
DC or peak AC
w/ 0.5 V & 10 mA
Measured w/ 0.5 V & 50 mA ,
1.5 ms after closure
100 volts applied
Voltage applied for 60 sec. min.
Measured w/ 100 % overdrive
Measured w/ no coil suppression
at 10 kHz cross contact
Switch 85
Form A
Min.
Typ.
Max.
100
400
1.0
2.5
150
200
10
10
4000
Switch 90
Form B/C
Min.
Typ.
Max. Units
20
175
0.5
1.0
250
W
V
A
A
mΩ
mΩ
10
9
200
Ω
VDC
0.7
1.5
1.0
ms
ms
pF
1.0
0.1
0.2
Steady state field
Steady state field
20
12
60
54
15
6
40
AT
AT
C
C
C
o
o
Please note: The indicated electrical data are maximum values and can vary downwards when using a more sensitive switch.
* Insulation resistance of 10
12
and breakdown voltage of 480 VDC is available.
** These ranges refer to the uncut / unmodified Reed Switches described in our Reed Switch section. Consult factory if more
detail is required.
www.meder.com
241
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