Cylindrical M5 Threaded M8 Threaded Flat Pack Large Flat Pack Sensing Distances Crosslink Notes

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Usage Notes

Reed Glossary

MS-228, M8 Threaded, Cylindrical Proximity Sensor

Does not require power for operation

Omni-polar device; actuates with either pole of magnet

Normally open (NO) contact

Three magnetic sensitivity bands

RoHS Compliant and Lead-free

0.75 mm pitch threaded barrel for fine adjustment

Contact rating of up to 60W available

Actuator magnet available in same housing

This M8 threaded brass sensor is built for mounting in threaded holes and switch up to 60W loads. It is particularly useful in industrial applications where distance adjustments need to be made every now and then. Various activating distances are available depending on the magnet and the AT band used. This sensor can be supplied with non-standard connectors on request. All sensors are tested 100% for operate and release AT, contact resistance and variable contact resistance before packing. Our products are completely Lead-free and conform to the RoHS directive.

MS-228 Threaded Magent Sensor Drawing

All dimensions in mm

Download this data sheet View actuation distances

Applications

This magnet sensor is suitable for use in the following applications and in many others: satellite television dish positioning, automobile ABS, heavy vehicles, digital speedometers and tachometers, floor detection for elevators, lifts and hoists, fork lifts, pneumatic cylinders and actuators, airport bridge control...

Specifications

Contact Form		A
Contact Rating (max)	W / VA	30.0
Switching Current (max)	A	0.5
Carry Current (max)	A	2.5
DC Switching Voltage (max)	V DC	230
Breakdown Voltage (min)	V DC	350
Initial Contact Resistance (max)	mΩ	200
Operating Temperature	°C	-40 to +70
Shock Resistance (½Sin wave for 11ms)	g	50
Vibration Resistance (10-2000Hz)	g	20

Ordering Code

MS-228-(Operate AT Code)-(Cable Length in mm)-(Lead Type Code)

OAT Code	OAT Band	Lead Type Code
3	20 - 25	S	Stripped to 5 mm
4	25 - 30	T	Stripped and Tinned
5	30 - 35	M	2-pin Female Molex Connector

Operate AT bands indicated above are for unmodified reed switch.

Example

MS-228-4-500-M

Denotes MS-228 proximity sensor in 25-30 Operate AT, with 500 mm cable length and Molex connectors.

Possible Magnet Actuations

Threaded Cylindrical Proximity Reed Sensor Actuation Examples

A few examples of magnet actuation are shown above. Cylindrical proximity sensors can be used in pneumatic cylinder end position sensing applications. Being an omnipolar device, this sensor can be actuated with either a north pole or a south pole or both. Choosing the right AT band, magnet strength, and operating axis, will restrict the number of operates and releases to one. Click here to view actuation distances of this sensor with the standard magnets.

Cylindrical M5 Threaded M8 Threaded Flat Pack Large Flat Pack Sensing Distances Crosslink Notes

Reed Relays and Electronics India Limited, 2008

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