MK03 Series
Cylindrical
Reed Sensors
MEDER electronic
DESCRIPTION
MK03 sensors are magnetically operated Reed
proximity switches in a cylindrical case with an
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
•
Position and limit switch
Pneumatic or hydraulic actuator position
Indication and end travel limit switch
•
Door and window contacts
Security system applications
•
Level sensor
Use with magnetic floats for water level
detection in coffee makers, washing
machines or dishwashers
FEATURES
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
•
High voltage versions upon request
•
•
•
•
•
All dimensions in mm [inch]
DIMENSIONS
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214
MEDER electronic
MK03 Series
Cylindrical
Reed Sensors
ORDER INFORMATION
Part Number Example
MK03 - 1A66 C - 500 W
1A
is the contact form
66
is the switch model
C
is the magnetic sensitivity
500
is the cable length (mm)
W
is the termination
Series
Contact
form
XX
Switch-
model
XX
Magnetic
Sensitivity
X-
Cable
Length
(mm)
XXX
Termina-
tion
X
MK03 -
1 Form A
Options
66
90
B, C, D, E
500*
W
1 Form B
1 Form C
* Other cable length available.
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.
Form C version requires 3 conductors.
W
The cable cut length includes:
5 mm of wire stripped and tinned
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215
MK03 Series
Cylindrical
Reed Sensors
MEDER electronic
CONTACT DATA
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
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 & 10mA
Measured w/ 0.5 V & 50mA ,
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 66
Form A
Min.
Typ.
Max. Units
10
200
0.5
1.25
150
200
10
10
*
225 *
W
V
A
A
mΩ
mΩ
Ω
VDC
0.5
0.1
0.2
ms
ms
pF
Steady state field
Steady state field
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
216
MEDER electronic
MK03 Series
Cylindrical
Reed Sensors
CONTACT DATA
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
Operation 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
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 & 10mA
Measured w/ 0.5 V & 50mA ,
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 90
Form B / C
Min.
Typ.
Max. Units
20
175
0.5
1.0
150
250
10
9
200
W
V
A
A
mΩ
mΩ
Ω
VDC
0.7
1.5
1.0
ms
ms
pF
Steady state field
Steady state field
15
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.
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217
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