MEDER MK20 1B Datasheet

A Global Leader in the Design, Development, and

Manufacture of Sensor and Magnetic Components

MK20/1 Series
Reed Sensors

 Features: Cylindrical Reed Sensor, Choice of Cable Termination & Lengths available, Various Case Sizes
 Applications: Door & Window Contacts, With Magnetic Floats for Water Level Detection, Position Sensing
 Markets: Appliance, Industrial, Security & Others

Modifications in the sense of technical progress are reserved.

Part

Description: MK 20/ 1 - X - 000X

Contact

Data

Switch Model Unit

80 (A-NO)

Rated Power

(max.)

Any

DC combination of V&A not to exceed their individual max.’s

10 W

Switching Voltage

(max.)

DC or

peak AC

170 V

Switching Current

(max.)

DC

or peak AC

0.5 A

Carry Current

(max.)

DC

or peak AC

0.5 A

Contact Resistance

(max.)

@

0.5V & 50mA

200 mOhm

Breakdown Voltage

(min.)

According to EN60255

-5

0.21 kVDC

Operating

Time (max.)

Incl. Bounce; Measured with w/ Nominal Voltage

0.6 ms

Release Time

(max.)

Measured with no Coil Excitation

0.05 ms

Insulation

Resistance (typ.)

Rh<45

%, 100V Test Voltage

10

9

Ohm

Capacitance

(typ.)

@

10kHz across open Switch

0.4 pF

USA: +1.866.782.6339 │ [e-mail]
Europe: +49.7731.8399.0 │ [e-mail]
Asia: +86.21.37820625 │ [e-mail]

Magnetic Sensitivity Cable Length (mm) Termination

B, C, D, E 100, 200, 300, 500 W (5mm uninsulated & tinned)

Version 02

21.03.2016
M. Reizner

Please note:

All technical specifications on this datasheet refer to the standard product range. For deviating values, please contact us!

Series Datasheet – MK20/1 Reed Sensors

www.standexmeder.com

Glossary Contact Form

Form

A

NO = Normally Open Contacts
SPST = Single Pole Single

Throw

Dimensions

Series Datasheet – MK20/1 Reed Sensors

www.standexmeder.com

Housing and Cable

Specifications

Housing

Material

PBT 30% GF

Case

Color

Black

Sealing

Compound

Polyurethan

Cable

Typ

Single

Wires

Cable Material

PVC

Cross

Section (mm²)

2

x 0.06

Environmental

Data Unit

Shock Resistance

(max.)

1/2 sine wave duration 11ms

50 G

Vibration

Resistance (max.)

20

G

Operating Temperature

Cable not moved

-30 to 70 °C

Operating

Temperature

Cable

moved

-5 to 70 °C

Storage Temperature

-30 to 70

°C

General Handling

& Assembly Instructions



Max torque on housing 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

 Load increase reduces life expectancy of Reed Switches

Glossary Magnetic Sensitivity

Sens

. B C D E

AT

10-15 15-20 20-25 25-30

A Global Leader in the Design, Development, and

Manufacture of Sensor and Magnetic Components

Modifications in the sense of technical progress are reserved.

USA: +1.866.782.6339 │ [e-mail]
Europe: +49.7731.8399.0 │ [e-mail]
Asia: +86.21.37820625 │ [e-mail]

Version 02

21.03.2016
M. Reizner

Please note:

All technical specifications on this datasheet refer to the standard product range. For deviating values, please contact us!