MK4-1A66B-500W

**MK04 Series** 

**MEDER electronic** 

## Reed Sensors for Screw Fastening 

## **DESCRIPTION** 

MK04 sensors are magnetically operated Reed proximity switches designed for screw mounting. 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** 

- Form A, B, and C available 

- 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 

## **DIMENSIONS** 

All dimensions in mm [inch] 

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**218** 

**MK04 Series** 

**MEDER electronic** 

Reed Sensors for Screw Fastening 

## **ORDER INFORMATION** 

## Part Number Example 

MK04  - 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<br>form|Switch-<br>model|Magnetic<br>Sensitivity|Cable<br>Length<br>(mm)|Termina-<br>tion|
|---|---|---|---|---|---|
|MK4 -|XX|XX|X -|XXX|X|
|Options|1 Form A|66<br>90|B, C, D, E|500*|W|
||1 Form B<br>1 Form C|||||
|* Other cable length available.||||||



## **MAGNETIC SENSITIVITY** 

|**AGNETIC**|**SENSITIVI**|
|---|---|
|Sensitivity<br>Class|**Pull In**<br>**AT Range**|
|B|10 - 15|
|C|15 - 20|
|D|20 - 25|
|E|25 - 30|



## **TERMINATION** 

For wire and termination details please consult factory. Form C version requires 3 conductors. 

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The cable cut length includes: 5 mm of wire stripped  and tinned 

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**219** 

**MK04 Series** 

**MEDER electronic** 

Reed Sensors for Screw Fastening 

## **CONTACT DATA** 

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Switch Model  → Switch 66<br>All Data at 20° C<br>Contact Form  → Form A<br>Contact Ratings Conditions Min. Typ. Max. Units<br>Switching Power Any DC combination of V & A not to exceed their individual max.‘s 10 W<br>Switching Voltage DC or peak AC 200 V<br>Switching Current DC or peak AC 0.5 A<br>Carry Current DC or peak AC 1.25 A<br>Static Contact Resistance w/ 0.5 V & 10mA 150 mΩ<br>Dynamic Contact Resistance Measured w/ 0.5 V & 50mA ,1.5 ms after closure 200 mΩ<br>Insulation Resistance across  10 [10]<br>Contacts 100 volts applied  * Ω<br>Breakdown Voltage across Contact Voltage applied for 60 sec. min. 225 * VDC<br>Operate Time incl. Bounce Measured w/ 100 % overdrive 0.5 ms<br>Release Time Measured w/ no coil suppression 0.1 ms<br>Capacitance at 10 kHz cross contact 0.2 pF<br>Contact Operation **<br>Must Operate Condition Steady state field 10 60 AT<br>Must Release Condition Steady state field 4 54 AT<br>Environmental Data<br>Shock Resistance 1/2 sinus wave duration 11 ms 50 g<br>Vibration Resistance From 10 - 2000 Hz 20 g<br>Ambient Temperature 10°C/ minute max. allowable -20 85 oC<br>Stock Temperature 10°C/ minute max. allowable -35 85 oC<br>Soldering Temperature 5 sec.  260 oC<br>Please note: The indicated electrical data are maximum values and can vary downwards when<br>using a more sensitive switch.<br>*   Insulation resistance of 10 [12]  and breakdown voltage of 480 VDC is available.<br>** These ranges refer to the uncut / unmodified Reed Switches described in our Reed Switch<br>section. Consult factory if more detail is required.<br>**----- End of picture text -----**<br>


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**220** 

**MK04 Series** 

**MEDER electronic** 

Reed Sensors for Screw Fastening 

## **CONTACT DATA** 

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**----- Start of picture text -----**<br>
Switch Model  → Switch 90<br>All Data at 20° C<br>Contact Form  → Form B / C<br>Contact Ratings Conditions Min. Typ. Max. Units<br>Switching Power Any DC combination of V & A not to exceed their individual max.‘s 20 W<br>Switching Voltage DC or peak AC 175 V<br>Switching Current DC or peak AC 0.5 A<br>Carry Current DC or peak AC 1.0 A<br>Static Contact Resistance w/ 0.5 V & 10mA 150 mΩ<br>Dynamic Contact Resistance Measured w/ 0.5 V & 50mA ,1.5 ms after closure 250 mΩ<br>Insulation Resistance across<br>Contacts 100 volts applied  10 [9] Ω<br>Breakdown Voltage across Contact Voltage applied for 60 sec. min. 200 VDC<br>Operate Time incl. Bounce Measured w/ 100 % overdrive 0.7 ms<br>Release Time Measured w/ no coil suppression 1.5 ms<br>Capacitance at 10 kHz cross contact 1.0 pF<br>Contact Operation **<br>Must Operate Condition Steady state field 15 40 AT<br>Must Release Condition Steady state field AT<br>Environmental Data<br>Shock Resistance 1/2 sinus wave duration 11 ms 50 g<br>Vibration Resistance From 10 - 2000 Hz 20 g<br>Ambient Temperature 10°C/ minute max. allowable -20 85 oC<br>Stock Temperature 10°C/ minute max. allowable -35 85 oC<br>Soldering Temperature 5 sec.  260 oC<br>Please note: The indicated electrical data are maximum values and can vary downwards when<br>using a more sensitive switch.<br>*   Insulation resistance of 10 [12]  and breakdown voltage of 480 VDC is available.<br>** These ranges refer to the uncut / unmodified Reed Switches described in our Reed Switch<br>section. Consult factory if more detail is required.<br>**----- End of picture text -----**<br>


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