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Last verified: 2026-10-07

Verifiable indicators

Short-time duty (S2) — Somfy 520R2 20/14 SJTW: 5 min^{[3; 2026-10-07]}; Becker R20-17-M19: 8 min^{[2; 2026-10-01]}. Elero RolMotion M-868 SH · 20 Nm · 14 rpm: Not published. A-OK AM45 Mechanical Detection Waterproof DC Zipscreen Motor: Not published.

Rated life — Elero RolMotion M-868 SH · 20 Nm · 14 rpm: Not published. A-OK AM45 Mechanical Detection Waterproof DC Zipscreen Motor: Not published. Somfy 520R2 20/14 SJTW: Not published. Becker R20-17-M19: Not published.

Thermal protection — Elero RolMotion M-868 SH · 20 Nm · 14 rpm: Not published. A-OK AM45 Mechanical Detection Waterproof DC Zipscreen Motor: Not published. Somfy 520R2 20/14 SJTW: Not published. Becker R20-17-M19: Not published.

IP rating — A-OK AM45 Mechanical Detection Waterproof DC Zipscreen Motor: IP65^{[1; 2026-09-30]}; Somfy 520R2 20/14 SJTW: IP44^{[3; 2026-10-07]}; Becker R20-17-M19: IP44^{[2; 2026-10-01]}. Elero RolMotion M-868 SH · 20 Nm · 14 rpm: Not published.

Comparison table
Property	Elero RolMotion M-868 SH · 20 Nm · 14 rpmElero49 232.0001	A-OK AM45 Mechanical Detection Waterproof DC Zipscreen MotorA-OKAM45-20/14-MR-E-D-XP	Somfy 520R2 20/14 SJTWSomfy1042055	Becker R20-17-M19Becker2020 060 001 0
Series & variant axes
SeriesDiffers: RolMotion M-868 SH vs AM45 vs LT50 vs M19	RolMotion M-868 SH	AM45	LT50	M19
Identity & lineage
Series / product lineDiffers: Not published vs AM45^{[1; 2026-09-30]} vs Not published vs M19^{[2; 2026-10-01]}	Not published	AM45^{[1; 2026-09-30]}	Not published	M19^{[2; 2026-10-01]}
GTIN / EAN	Not published	Not published	Not published	4251852901946^{[2; 2026-10-01]}
Electrical
Rated voltageDiffers: Not published vs 24 V^{[1; 2026-09-30]} vs 120 V^{[3; 2026-10-07]} vs 12 V^{[2; 2026-10-01]}	Not published	24 V^{[1; 2026-09-30]}	120 V^{[3; 2026-10-07]}	12 V^{[2; 2026-10-01]}
Mains frequency	Not published	Not published	60 Hz^{[3; 2026-10-07]}	Not published
Power supply typeDiffers: Not published vs DC^{[1; 2026-09-30]} vs AC mains^{[3; 2026-10-07]} vs DC^{[2; 2026-10-01]}	Not published	DC^{[1; 2026-09-30]}	AC mains^{[3; 2026-10-07]}	DC^{[2; 2026-10-01]}
Rated power inputDiffers: Not published vs 80 W^{[1; 2026-09-30]} vs 130 W^{[4; 2026-09-30]} vs 75 W^{[2; 2026-10-01]}	Not published	80 W^{[1; 2026-09-30]}	130 W^{[4; 2026-09-30]}	75 W^{[2; 2026-10-01]}
Standby power	Not published	Not published	0 W^{[4; 2026-10-01]}	Not published
Rated currentDiffers: Not published vs 3.3 A^{[1; 2026-09-30]} vs 1.1 A^{[3; 2026-10-07]} vs 6.3 A^{[2; 2026-10-01]}	Not published	3.3 A^{[1; 2026-09-30]}	1.1 A^{[3; 2026-10-07]}	6.3 A^{[2; 2026-10-01]}
Cable type	Not published	Not published	Not published	Gummileitung H07RN-F 2X1,5 sw^{[2; 2026-10-05]}
Cable lengthDiffers: Not published vs Not published vs 2 m^{[3; 2026-10-07]} vs 3 m^{[2; 2026-10-05]}	Not published	Not published	2 m^{[3; 2026-10-07]}	3 m^{[2; 2026-10-05]}
Drive performance
Rated torque	20 Nm^{[5; 2026-09-23]}	20 Nm^{[1; 2026-09-30]}	20 Nm^{[3; 2026-10-07]}	20 Nm^{[2; 2026-10-01]}
Rated speedDiffers: 14 rpm^{[5; 2026-09-23]} vs 14 rpm^{[1; 2026-09-30]} vs 14 rpm^{[3; 2026-10-07]} vs 15 rpm^{[2; 2026-10-01]}	14 rpm^{[5; 2026-09-23]}	14 rpm^{[1; 2026-09-30]}	14 rpm^{[3; 2026-10-07]}	15 rpm^{[2; 2026-10-01]}
Speed range (min)	5 rpm^{[5; 2026-10-01]}	Not published	Not published	Not published
Short-time duty (S2)Differs: Not published vs Not published vs 5 min^{[3; 2026-10-07]} vs 8 min^{[2; 2026-10-01]}	Not published	Not published	5 min^{[3; 2026-10-07]}	8 min^{[2; 2026-10-01]}Highest stated
Duty type	Not published	Not published	Not published	S2^{[2; 2026-10-01]}
Dimensions & mounting
Motor diameter	Not published	Not published	Not published	45 mm^{[2; 2026-10-01]}
Fits tube diameter	≥ 50 mm^{[5; 2026-10-01]}	Not published	Not published	≥ 50 mm^{[2; 2026-10-01]}
Weight	Not published	Not published	Not published	2.298 kg^{[2; 2026-10-01]}
Limits & protection
Limit settingDiffers: Electronic^{[5; 2026-10-01]} vs Not published vs Not published vs Mechanical^{[2; 2026-10-01]}	Electronic^{[5; 2026-10-01]}	Not published	Not published	Mechanical^{[2; 2026-10-01]}
Control & communication
Control protocol	Proprietary RF^{[5; 2026-10-01]}	Proprietary RF^{[1; 2026-09-30]}	Not published	Not published
Control interface (as stated)	Radio^{[5; 2026-10-01]}	Not published	Not published	Not published
Radio frequencyDiffers: 868 MHz^{[6; 2026-09-23]} vs 433 MHz^{[1; 2026-10-01]} vs Not published vs Not published	868 MHz^{[6; 2026-09-23]}	433 MHz^{[1; 2026-10-01]}	Not published	Not published
Environment & protection
IP ratingDiffers: Not published vs IP65^{[1; 2026-09-30]} vs IP44^{[3; 2026-10-07]} vs IP44^{[2; 2026-10-01]}	Not published	IP65^{[1; 2026-09-30]}Highest stated	IP44^{[3; 2026-10-07]}	IP44^{[2; 2026-10-01]}
Operating temp. (min)	Not published	Not published	-10 °C^{[3; 2026-10-07]}	Not published
Operating temp. (max)	Not published	Not published	60 °C^{[3; 2026-10-07]}	Not published
Noise level	Not published	Not published	48 dB(A)^{[4; 2026-09-30]}	Not published
Application
Applications	Roller shutter^{[5; 2026-10-01]}	Not published	Not published	Roller shutter^{[7; 2026-10-06]}
Compliance & declarations
Marks stated by vendor	Not published	Not published	Not published	CE^{[2; 2026-10-05]}
Appearance
Colour / finish	Not published	Not published	Not published	Weiß (RAL 9016)^{[2; 2026-10-01]}
Documents	Request datasheet	Request datasheet	Official datasheet ↗	Request datasheet

Data gaps

Becker R20-17-M19: Overall length — Not yet collected

Sources

↑A-OK Motor manufacturer site (product catalog)a-okmotor.comSeries / product line: AM45 Mechanical Detection Waterproof DC Zipscreen MotorManufacturer-stated · Observed 2026-09-30 · Retrieved 2026-09-23 · Public web pageUsed for: 2955, 2951, 2948, 2952, 2953, 2946, 2947, 2954, 9871, 2949
↑Becker-Antriebe product centre (product catalog)produktcenter.becker-antriebe.comSeries / product line: Serie M19Manufacturer-stated · Observed 2026-10-01 · Retrieved 2026-10-01 · Public web pageUsed for: 16807, 16808, 16811, 16798, 16809, 16820, 48570, 48572, 16794, 16796, 16817, 16818, 16803, 16822, 16812, 16824, 16800, 48571, 16814
↑Somfy PDF catalogue lt50ra-d0025service.somfy.comRated voltage: Voltage Supply: 120V AC, 60Hz [1041026] (p. 1)Manufacturer-stated · Observed 2026-10-07 · Retrieved 2026-10-06 · Public web pageUsed for: 51151, 51153, 51152, 51159, 51157, 51158, 51160, 51161, 51154, 51155, 51156
↑Somfy Systems (North America) manufacturer site (product catalog)somfysystems.comRated power input: Consumption during operation 130 WManufacturer-stated · Observed 2026-09-30 · Retrieved 2026-09-30 · Public web pageUsed for: 4247, 10458, 4245
↑Elero manufacturer site (product catalog)elero.comRated torque: 20 NmManufacturer-stated · Observed 2026-09-23 · Retrieved 2026-09-23 · Public web pageUsed for: 1623, 1624, 26073, 26071, 26070, 26072, 26068, 26069
↑Elero manufacturer site (product catalog)elero.commodel: RolMotion M-868 SH RolMotion M20-868 SHDerived · Observed 2026-09-23 · Retrieved 2026-09-23 · Public web pageUsed for: 7316
↑https://produktcenter.becker-antriebe.com/Antriebe/Rollladenanwendungen/Antriebe-mit-mechanischer-Endabschaltung/R20-17-M19.htmlproduktcenter.becker-antriebe.comBecker R20-17-M19: tubular drive in produktcenter.becker-antriebe.com "Antriebe > Rollladenanwendungen" (https://produktcenter.becker-antriebe.com/Antriebe/Rollladenanwendungen/Antriebe-mit-mechanischer-Endabschaltung/R20-17-M19.html)Manufacturer-stated · Observed 2026-10-06 · Retrieved 2026-10-06 · Public web pageUsed for: 50741

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Verifiable indicators

Data gaps

Sources