Activation Distances for MS-328 Flat Pack Sensor

Operate and release distances for the MS-328 standard size Flat pack sensor in the three standard AT bands when actuated (as shown in the sketches) with NdFeB standard magnets is shown below. Although some of the AT band / magnet combinations will produce similar actuating distances, selecting the right AT band and magnet for an application is important and can be done by going through our AT band FAQ and our magnet selection guide.

MS-328-3 (20-25 AT)

Actuation Sketch	Magnet	Dimensions	Operate Distance	Release Distance
	NDR-T	4.0 x 1.5 x 1.5	N/A	N/A
	NDC-T	Ø2.0 x 4.0	N/A	N/A
	NDR-S	6.0 x 2.5 x 2.5	4.0 - 5.0	7.0 - 8.0
	NDC-S	Ø3.0 x 7.0	5.0 - 6.5	9.5 - 10.0
	NDR-M	8.0 x 3.0 x 3.0	7.0 - 8.5	12.0 - 13.0
	NDC-M	Ø4.0 x 10.0	9.5 - 12.0	16.0 - 18.0
	NDR-L	19.0 x 4.0 x 4.0	15.0 - 18.0	23.0 - 24.0
	NDC-L	Ø8.0 x 15.0	23.0 - 27.0	34.0 - 36.0

MS-328-4 (25-30 AT)

Actuation Sketch	Magnet	Dimensions	Operate Distance	Release Distance
	NDR-T	4.0 x 1.5 x 1.5	N/A	N/A
	NDC-T	Ø2.0 x 4.0	N/A	N/A
	NDR-S	6.0 x 2.5 x 2.5	3.0 - 4.0	7.0 - 8.0
	NDC-S	Ø3.0 x 7.0	4.5 - 5.0	9.0 - 9.5
	NDR-M	8.0 x 3.0 x 3.0	6.5 - 7.0	11.0 - 12.0
	NDC-M	Ø4.0 x 10.0	9.0 - 10.0	15.0 - 16.0
	NDR-L	19.0 x 4.0 x 4.0	14.0 - 15.0	22.0 - 23.0
	NDC-L	Ø8.0 x 15.0	22.0 - 23.0	33.0 - 34.0

MS-328-5 (30-55 AT)

Actuation Sketch	Magnet	Dimensions	Operate Distance	Release Distance
	NDR-T	4.0 x 1.5 x 1.5	N/A	N/A
	NDC-T	Ø2.0 x 4.0	N/A	N/A
	NDR-S	6.0 x 2.5 x 2.5	2.5 - 3.0	7.0 - 7.5
	NDC-S	Ø3.0 x 7.0	4.0 - 5.0	9.0 - 9.5
	NDR-M	8.0 x 3.0 x 3.0	5.5 - 6.5	11.0 - 12.0
	NDC-M	Ø4.0 x 10.0	8.0 - 9.5	15.0 - 16.0
	NDR-L	19.0 x 4.0 x 4.0	12.0 - 14.0	21.0 - 23.0
	NDC-L	Ø8.0 x 15.0	20.0 - 22.0	31.0 - 33.0

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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