A Global Leader in the Design, Development, and Manufacture of Sensor and Magnetic Components www.standexmeder.com Series Datasheet MK21 Reed Sensors MK21 Series Reed Sensors Features: Screw Mount, Withstands Temp. >150C (M-Version), Cable Termination & Lengths available Applications: Door & Window Contacts, With Magnetic Floats for Water Level Detection, Position Sensing Markets: Automotive, Appliance, Industrial, Security & Others Part Description: MK 21/X - 0 X00 X -000 X Contact Contact Switch Magnetic Cable Length Version Termination (mm) QTY Form Model Sensitivity M = Molded 500, 1,000, 1,500, 1 A, B, C 66, 85, 90 B, C, D, E W P = Potted 2,000, 3,000, 5,000 Customer Options Switch Model Unit Contact Data 66 85 90 Rated Power (max.) 10 100 10 W Any DC combination of V&A not to exceed their individual max.s Switching Voltage (max.) 180 1,000 175 V DC or peak AC Switching Current (max.) 0.5 1 0.5 A DC or peak AC Carry Current (max.) 1.25 2,5 1.0 A DC or peak AC Contact Resistance (max.) 150 150 150 mOhm 0.5V & 50mA Breakdown Voltage (min.) 0.2 1,5 0.2 kVDC According to EN60255-5 Operating Time (max.) 0.5 1.1 0.7 ms Incl. Bounce Measured with w/ Nominal Voltage Release Time (max.) 0.05 0.1 1.5 ms Measured with no Coil Excitation Insulation Resistance (typ.) 10 10 9 10 10 10 Ohm Rh<45%, 100V Test Voltage Capacitance (typ.) 0.3 0.5 1.5 pF 10kHz across open Switch USA: +1.866.782.6339 salesusa standexmeder.com Version 01 Europe: +49.7731.8399.0 info standexmeder.com 27.01.2015 Asia: +86.21.37820625 salesasia standexmeder.com Modifications in the sense of technical progress are reserved. A Global Leader in the Design, Development, and Manufacture of Sensor and Magnetic Components www.standexmeder.com Series Datasheet MK21 Reed Sensors Housing and Cable Specifications MK20/1 Reed Sensor Housing Material Epoxy Resin Case Color Black Sealing Compound - Cable Typ Single Wires Cable Material Radox Cross Section (mm) 0.34 Environmental Data Unit Shock Resistance (max.) 50 g 1/2 sine wave duration 11ms Vibration Resistance (max.) 20 g Operating Temperature -40 to 150 C Cable not moved Operating Temperature Handling & Assembly Instructions -30 to 150 C Cable moved Storage Temperature -40 to 150 C Max torque on housing is 1Nm Cable bending-radius is diameter x 15 Glossary Contact Form Min. bending distance to housing is 5mm NO = Normally Open Contacts Drag mark out of the mounting area forbidden Form A SPST = Single Pole Single Throw Decrease switching distance by mounting on iron NC = Normally Closed Contacts Form B Do not use magnetically inductive screws SPST = Single Pole Single Throw Series resistor recommended for > 5m cable length Changeover Form C SPDT = Single Pole Double Throw Life Test Data Glossary Magnetic Sensitivity *Load increase reduces life expectancy of Reed Switches Sens. A B C D E F G AT 05-10 10-15 15-20 20-25 25-30 30-35 35-40 USA: +1.866.782.6339 salesusa standexmeder.com Version 01 Europe: +49.7731.8399.0 info standexmeder.com 27.01.2015 Asia: +86.21.37820625 salesasia standexmeder.com Modifications in the sense of technical progress are reserved.