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Magnetic Actuator MA-4S / MA-4SN

For extended sensing with ES Series Proximity Switches

The Euroswitch ES Series proximity switches use a “Hermetically Sealed Reed Element”. Reed switches are electromechanical devices that detect the position of a magnetic field; therefore, they require an external magnetic actuator to operate. Detailed below are our standard range of magnets designed to give solutions to a multitude of applications.

New improved design from Feb 2024
Refer to factory bulletin for changes.

MA-4SMA-4SN
Body Material 316L Stainless Steel316L Stainless Steel
Dimensions 19mm A/F x 23.5mm¾" A/F x 0.87"
Thread M10x1.5 x 16mm3/8"-16 x 0.63"
Magnetic Actuator Combinations
Switch Model MA-4S
Sensing Range
Alternative Magnets
MA-1S
Sensing Range
MA-2S
Sensing Range
MA-3S
Sensing Range
MA-7S / MA-7SN
Sensing Range
MA-8S / MA-8N
Sensing Range
MA-9S
Sensing Range
ES-0 8.0mm (0.31") 6.0mm (0.24")3.0mm (0.12")18.0mm (0.71")10.0mm (0.39")8.0mm (0.31")6.0mm (0.24")
ES-1 8.0mm (0.31") 6.0mm (0.24")3.0mm (0.12")18.0mm (0.71")10.0mm (0.39")8.0mm (0.31")6.0mm (0.24")
ES-2 11.0mm (0.43") 10.0mm (0.39")6.0mm (0.24")26.0mm (1.02")13.0mm (0.51")11.0mm (0.43")9.0mm (0.35")
ES-3 8.0mm (0.31") 8.0mm (0.31")N/AN/A16.0mm (0.63")8.0mm (0.31")8.0mm (0.31")
ES-4 12.0mm (0.47") 12.0mm (0.47")N/AN/A20.0mm (0.79")12.0mm (0.47")12.0mm (0.47")
ES-5 & 6 8.0mm (0.31") 8.0mm (0.31")N/AN/A16.0mm (0.63")8.0mm (0.31")8.0mm (0.31")
ES-7 & 8 8.0mm (0.31") 8.0mm (0.31")N/AN/A16.0mm (0.63")8.0mm (0.31")8.0mm (0.31")
ES-9 & 10 8.0mm (0.31") 8.0mm (0.31")N/AN/A16.0mm (0.63")8.0mm (0.31")8.0mm (0.31")
ES-11 & 12 8.0mm (0.31") 8.0mm (0.31")N/AN/A16.0mm (0.63")8.0mm (0.31")8.0mm (0.31")
ES-13 & 14 12.0mm (0.47") 12.0mm (0.47")N/AN/A20.0mm (0.79")12.0mm (0.47")12.0mm (0.47")
ES-15 & 16 12.0mm (0.47") 12.0mm (0.47")N/AN/A20.0mm (0.79")12.0mm (0.47")12.0mm (0.47")
For detailed information please visit, www.euroswitch.com.
Operating Principles

To obtain the best results possible in your application, certain consideration should be observed.

Here are the two most typical examples of how the target would approach the ES Series Sensor.