MK28-1A-500W

## MK28 Series Reed Sensors 

- ➢ **Features: Vane Operated Screw Mount Proximity/Motion Sensor, Ideal in Harsh Environments** 

- ➢ **Applications: Water Meter Cursor Detection, Position Control, Locking System, Robotics & Others** 

- ➢ **Markets: Automotive, Industrial, Robotics, Security & Other** 

|Customer Options<br>~~oo~~|Switch Model<br>~~———~~|Unit<br>~~———~~|
|---|---|---|
|Contact Data<br>~~oo~~|90<br>~~———~~<br>~~ee~~||
|Rated Power (max.)<br>Any DC combination of V&A not to exceed their individual  max.’s<br>~~oo~~|10<br>~~———~~|W<br>~~———~~|
|Switching Voltage (max.)<br>DC or peak AC<br>~~oo~~|175<br>~~———~~|V<br>~~———~~|
|Switching Current (max.)<br>DC or peak AC|0.5|A|
|Carry Current (max.)<br>DC or peak AC|1.0|A|
|Contact Resistance (max.)<br>@ 0.5V & 50mA|150|mOhm|
|Breakdown Voltage (min.)<br>According to EN60255-5|0.2|kVDC|
|Operating Time (max.)<br>Incl. Bounce; Measured with w/ Nominal Voltage|0.7|ms|
|Release Time (max.)<br>Measured with no Coil Excitation|1.5|ms|
|Insulation Resistance (typ.)<br>Rh<45%, 100V Test Voltage|109|Ohm|
|Capacitance (typ.)<br>@ 10kHz across open Switch|1.5|pF|



Version 02 28 Feb 2019 Page 1 M. Reizner 

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APAC: +86 21/37606000 | salesasia@standexmeder.com 

USA: +1 866.782.6339 | salesusa@standexmeder.com 

## MK28 Series Reed Sensors 

|Housingand Lead Specifications<br>~~OO ~~|Housingand Lead Specifications<br>~~OO ~~|
|---|---|
|Housing Material|Nylon 6/6|
|Case Color|Black|
|Sealing Compound|Polyurethane|
|Cable Type|Flat Cable/Round Cable|
|Cable Material|PVC|
|Cross Section (mm2)|2 x 0.14 / 3 X 0.14|



|Environmental Data|Environmental Data|Unit|
|---|---|---|
|Shock Resistance (max.)<br>1/2 sine wave duration 11ms|50|g|
|Vibration Resistance(max.)|20|g|
|Operating Temperature<br>Cable not moved|-30 to 70|°C|
|Operating Temperature<br>Cable moved|-5 to 70|°C|
|Storage Temperature|-30 to 70|°C|



## ~~L~~ Glossary Contact Form ~~o~~ 

NO = Normally Open Contacts Form A SPST = Single Pole Single Throw NC = Normally Closed Contacts Form B SPST = Single Pole Single Throw Changeover Form C SPDT = Single Pole Double Throw 

Layout ~~_ LEE~~ 

Top View 

|GlossaryMagnetic Sensitivity<br>~~Lo~~|GlossaryMagnetic Sensitivity<br>~~Lo~~|GlossaryMagnetic Sensitivity<br>~~Lo~~|GlossaryMagnetic Sensitivity<br>~~Lo~~|GlossaryMagnetic Sensitivity<br>~~Lo~~|GlossaryMagnetic Sensitivity<br>~~Lo~~|GlossaryMagnetic Sensitivity<br>~~Lo~~|GlossaryMagnetic Sensitivity<br>~~Lo~~|
|---|---|---|---|---|---|---|---|
|Sens.<br>~~Lo~~|A<br>~~Lo~~|B<br>~~Lo~~|C<br>~~Lo~~|D<br>~~Lo~~|E<br>~~Lo~~|F<br>~~Lo~~|G<br>~~Lo~~|
|AT|05-10|10-15|15-20 20-25|15-20 20-25|25-30|30-35|35-40|



## MK28 Reed Sensor ~~eee~~ 

## Handling & Assembly Instructions ~~[~~ 

- ➢ Max torque of screw is 1Nm 

- ➢ Cable bending-radius is diameter x 15 

- ➢ Min. bending distance to housing is 5mm 

- ➢ Drag mark out of the mounting area forbidden 

- ➢ Decrease switching distance by mounting on iron 

- ➢ Do not use magnetically inductive screws 

- ➢ Series resistor recommended for > 5m cable length 

## Life Test Data 

*Load increase reduces life expectancy of Reed Switches 

**==> picture [232 x 150] intentionally omitted <==**

**----- Start of picture text -----**<br>
Load (DC) KSK-1C90U / KSK-1C90F<br>100V/10mA<br>=<br>20V/500mA 7<br>10V/100mA a<br>10V/4mA rs<br><5V/10mA Lee<br>1,E+05 1,E+06 1,E+07 1,E+08 1,E+09 1,E+10<br>Typical Number of Operations<br>**----- End of picture text -----**<br>


Please note: All technical specifications on this series datasheet refer to the standard product range. Modifications in the sense of technical progress are reserved. For general information only. For more specific information, please consult the product datasheet, available upon request. 

This series datasheet could contain technical inaccuracies or typographical errors. Changes are periodically made to the information herein. These change will be incorporated in future revisions. 

For deviating values, most current specifications and products please contact your nearest sales office. 

Version 02 28 Feb 2019 Page 2 M. Reizner 

EMEA: +49 7731/8399-0 | info@standexmeder.com 

APAC: +86 21/37606000 | salesasia@standexmeder.com 

USA: +1 866.782.6339 | salesusa@standexmeder.com