MK9 Series

Reed Sensor Incorporated into a HIRSCHMANN connector

Characteristics

MK9 sensors are magnetically operated Reed proximity switches molded into a standard HIRSCHMANN connector casing according to “DIN43650/ type AM3”. In combination with the corresponding Hirschmann socket a coupling with firmly defined position is achieved .  In order to fix the sensor, its molded surface is screwed on a plane surface in direction of the operating magnet.  The magnet is fixed to the moving part, e.g. a piston, which is traveling towards the sensor.  The Reed Switch is located in the completely molded socket.  The sensor is available in form A, B and C.

Applications

Air filter maintenance, e.g. monitoring of filter condition

Air conditioning and clean room systems, e.g. filter condition detection

Pneumatic and hydraulic cylinders for position sensing

Machine industry

Dimensions

Tolerance +/- 0.10mm (0.004 inch)

Dimension Drawing

Contact Data

Contact type 71 81 84 90 96
Contact form A/dry A/dry A/dry B/C/dry B/C/dry
Rated Power max. (W) 10 5 10 3 20
Switching voltage max. (VDC) 1801 90 150VAC 175 150
Switching current max. (A) 0.5 0.5 0.5 0.25 1.0
Carry current (A) 1.02 1.0 1.0 1.2 2.0
Contact resistance max. mOhm 150 200 150 150 150
Breakdown voltage min. (VDC) 2103 100 700 200 200
Operating time incl. bounce (ms) 0.5 0.5 2.0 0.7 2.6
Releasing time (ms) 0.1 0.1 0.25 1.0 0.2
Operating temperature (°C) -20/+85 -20/+85 -20/+85 -20/+85 -20/+85
Storing temperature (°C) -35/+85 -325/+85 -35/+85 -35/+85 -35/+85

1Range D & E: 200 VDC  2Range D & E : 1.75 A  3Range D: 280 VDC; Range E: 310 VDC

Other switches by request.

Magnetic Sensitivity

Sensitivity class A B C D E
Pull-in AT range 5-10 10-15 15-20 20-25 25-30
Available switches 81 71/84 71/84/90/96 71/84/90/96

This data relates to unmodified Reed switches before mounting. Please refer to the respective single data sheets for sensitivity data and measurement methods for finished assemblies.

Order information

Ordering example

MK9 – 1A71 C

MK9 Reed Sensor, 1 form A switch type 71, Sensitivity class C

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