Activation Distances for MS-228 Cylindrical Sensor

Operate and release distances for the MS-228 M8 threaded proximity sensor in the three standard AT bands when actuated (as shown in the sketches) with NdFeB standard magnets is shown below. All distances given are in mm with tolerances of ±0.5mm. 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 magnet selection guide.

MS-228-3 (20-25 AT) Tip to Tip Actuation

Actuation Sketch	Magnet	Dimensions	Operate Distance	Release Distance
	NDR-T	4.0 x 1.5 x 1.5	N/A	N/A
	NDR-S	6.0 x 2.5 x 2.5	N/A	N/A
	NDR-M	8.0 x 3.0 x 3.0	3.0 – 5.0	7.0 – 8.0
	NDR-I	12.0 x 3.5 x 3.5	6.0 – 8.0	11.0 – 12.0
	NDR-L	19.0 x 4.0 x 4.0	9.0 – 12.0	15.0 – 16.0
	NDC-T	Φ2.0 x 4.0	N/A	N/A
	NDC-S	Φ3.0 x 7.0	1.0 – 2.0	4.0 – 5.0
	NDC-M	Φ4.0 x 10	5.0 – 7.0	10.0 – 11.0
	NDC-I	Φ6.0 x 12.0	13.0 – 15.0	19.0 – 20.0
	NDC-L	Φ8.0 x 15.0	21.0 – 24.0	29.0 – 30.0

MS-228-4 (25-30 AT) Tip to Tip Actuation

Actuation Sketch	Magnet	Dimensions	Operate Distance	Release Distance
	NDR-T	4.0 x 1.5 x 1.5	N/A	N/A
	NDR-S	6.0 x 2.5 x 2.5	N/A	N/A
	NDR-M	8.0 x 3.0 x 3.0	1.5 – 3.0	6.0 – 7.0
	NDR-I	12.0 x 3.5 x 3.5	4.5 – 6.0	10.0 – 11.0
	NDR-L	19.0 x 4.0 x 4.0	8.0 – 9.0	14.0 – 15.0
	NDC-T	Φ2.0 x 4.0	N/A	N/A
	NDC-S	Φ3.0 x 7.0	N/A	N/A
	NDC-M	Φ4.0 x 10	3.5 – 5.0	8.0 – 10.0
	NDC-I	Φ6.0 x 12.0	11.0 – 13.0	18.0 – 19.0
	NDC-L	Φ8.0 x 15.0	19.0 – 21.0	27.0 – 29.0

MS-228-5 (30-35 AT) Tip to Tip Actuation

Actuation Sketch	Magnet	Dimensions	Operate Distance	Release Distance
	NDR-T	4.0 x 1.5 x 1.5	N/A	N/A
	NDR-S	6.0 x 2.5 x 2.5	N/A	N/A
	NDR-M	8.0 x 3.0 x 3.0	N/A	N/A
	NDR-I	12.0 x 3.5 x 3.5	3.0 – 4.5	10.0 – 11.0
	NDR-L	19.0 x 4.0 x 4.0	6.0 – 8.0	14.0 – 16.0
	NDC-T	Φ2.0 x 4.0	N/A	N/A
	NDC-S	Φ3.0 x 7.0	N/A	N/A
	NDC-M	Φ4.0 x 10	2.0 – 3.5	9.0 – 10.0
	NDC-I	Φ6.0 x 12.0	9.0 – 11.0	18.0 – 20.0
	NDC-L	Φ8.0 x 15.0	16.0 – 19.0	26.0 – 28.0

MS-228-3 (20-25 AT) Parallel Actuation

Actuation Sketch	Magnet	Dimensions	Operate Distance	Release Distance
	NDR-T	4.0 x 1.5 x 1.5	N/A	N/A
	NDR-S	6.0 x 2.5 x 2.5	2.0 – 3.0	4.0 – 5.0
	NDR-M	8.0 x 3.0 x 3.0	6.0 – 7.0	10.0 – 11.0
	NDR-I	12.0 x 3.5 x 3.5	10.0 – 11.0	14.0 – 16.0
	NDR-L	19.0 x 4.0 x 4.0	14.0 – 15.0	19.0 – 20.0
	NDC-T	Φ2.0 x 4.0	N/A	N/A
	NDC-S	Φ3.0 x 7.0	4.0 – 5.0	6.0 – 7.0
	NDC-M	Φ4.0 x 10	9.0 – 10.0	13.0 – 14.0
	NDC-I	Φ6.0 x 12.0	16.0 – 17.0	21.0 – 22.0
	NDC-L	Φ8.0 x 15.0	23.0 – 25.0	29.0 – 30.0

MS-228-4 (25-30 AT) Parallel Actuation

Actuation Sketch	Magnet	Dimensions	Operate Distance	Release Distance
	NDR-T	4.0 x 1.5 x 1.5	N/A	N/A
	NDR-S	6.0 x 2.5 x 2.5	1.5 – 2.0	3.0 – 4.0
	NDR-M	8.0 x 3.0 x 3.0	5.0 – 6.0	8.0 – 9.0
	NDR-I	12.0 x 3.5 x 3.5	9.0 – 10.0	12.0 – 13.0
	NDR-L	19.0 x 4.0 x 4.0	12.0 – 14.0	18.0 – 20.0
	NDC-T	Φ2.0 x 4.0	N/A	N/A
	NDC-S	Φ3.0 x 7.0	3.0 – 4.0	6.0 – 7.0
	NDC-M	Φ4.0 x 10	8.0 – 9.0	11.0 – 12.0
	NDC-I	Φ6.0 x 12.0	14.0 – 16.0	20.0 – 21.0
	NDC-L	Φ8.0 x 15.0	20.0 – 23.0	28.0 – 29.0

MS-228-5 (30-35 AT) Parallel Actuation

Actuation Sketch	Magnet	Dimensions	Operate Distance	Release Distance
	NDR-T	4.0 x 1.5 x 1.5	N/A	N/A
	NDR-S	6.0 x 2.5 x 2.5	0.5 – 1.5	3.0 – 6.0
	NDR-M	8.0 x 3.0 x 3.0	4.0 – 5.0	8.0 – 10.0
	NDR-I	12.0 x 3.5 x 3.5	8.0 – 9.0	13.0 – 20.0
	NDR-L	19.0 x 4.0 x 4.0	12.0 – 13.0	19.0 – 21.0
	NDC-T	Φ2.0 x 4.0	N/A	N/A
	NDC-S	Φ3.0 x 7.0	2.0 – 3.0	6.0 – 9.0
	NDC-M	Φ4.0 x 10	7.0 – 8.0	12.0 – 16.0
	NDC-I	Φ6.0 x 12.0	13.0 – 14.0	20.0 – 24.0
	NDC-L	Φ8.0 x 15.0	19.0 – 20.0	27.0 – 28.0