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King's Electronic Limit Switch Tubular Motor. No Tools Needed for Limit Siwtch adjustment, Limit Switch is control by RF Remote - details see: https://www.machineto.com/50mm-tubular-motor-with-electronic-limit-switch-10236333

SN50-B SERIESFeaturing:

1. The electronic limit switch utizlise Plastic Circuit Board with IC and Roms to memorise motors top stop position and bottom stop positions.
2. The Top and bottom stop positions is needed for motorized roller blinds and venetian blinds.
3. The Top and bottom stop positions is programed with very simple opereation via remote.
4. If there are many motorized blinds installed, our motors can programed its Top and bottom stop positions simultaneously regardless of how many motors installed.
5. The Eletronic limit switch has 2 programs in built. Programme 1 is roller blind mode. Programme 2 in Venetian mode.
6. In roller blind mode the motors offers simple Top, middle and bottom position stop points for user to use.
7. In venetian mode it has top, middle and bottom position plus tilting for the slat.

Electronic Type

Item No.	Torque Nm	Speed rpm	Volt/Hz V Hz	Motor Dia D (mm)	Length L (mm)	Ampere A	Watt W
SN510B34	10	34	120-60	45	685	1.9	205
SN520B16	20	16
SN520B34	20	34				2.5	290
SN540B16	40	16
SN510B34	10	30/34	220-50/60	45	685	0.7	160
SN520B16	20	14/16
SN520B34	20	30/34				1.1	240
SN540B16	40	14/16
SN510B30	10	30	230/240-50	45	685	0.5	132
SN520B14	20	14
SN520B30	20	30				0.9	220
SN540B14	40	14

To pick the correct motor, please refer to this formula:

Torque (N.M) = Radius x load ÷ 100 = N.M required.
Use the above chart find the right N.M and thats the motor you need.