What supply voltage and frequency does each use?

Rated voltage — Somfy Roll Up 28 · 1.1 Nm · 20 rpm: 12 V. Power supply type — A-OK AM25 AC Input Electronic Limit DC Tubular Motor: AC mains, DC; Somfy Roll Up 28 · 1.1 Nm · 20 rpm: Battery, DC.

What torque and speed is each rated for?

Rated torque — A-OK AM25 AC Input Electronic Limit DC Tubular Motor: 1.2 Nm; Somfy Roll Up 28 · 1.1 Nm · 20 rpm: 1.1 Nm. Rated speed — A-OK AM25 AC Input Electronic Limit DC Tubular Motor: 25 rpm; Somfy Roll Up 28 · 1.1 Nm · 20 rpm: 20 rpm.

What protocols and control options does each support?

Limit setting — A-OK AM25 AC Input Electronic Limit DC Tubular Motor: Electronic; Somfy Roll Up 28 · 1.1 Nm · 20 rpm: Electronic. Control protocol — A-OK AM25 AC Input Electronic Limit DC Tubular Motor: Proprietary RF, RS-485; Somfy Roll Up 28 · 1.1 Nm · 20 rpm: RTS.

What certifications are on record for each?

Marks stated by vendor — Somfy Roll Up 28 · 1.1 Nm · 20 rpm: CE.

A-OK AM25 AC Input Electronic Limit DC: 1.2 Nm vs 1.1 Nm

Rated torque — A-OK AM25 AC Input Electronic Limit DC Tubular Motor: 1.2 Nm^{[1; 2026-09-30]}; Somfy Roll Up 28 · 1.1 Nm^{[2; 2026-10-06]} · 20 rpm: 1.1 Nm.

Rated speed — A-OK AM25 AC Input Electronic Limit DC Tubular Motor: 25 rpm^{[1; 2026-09-30]}; Somfy Roll Up 28 · 1.1 Nm · 20 rpm^{[2; 2026-10-06]}: 20 rpm.

Radio frequency — A-OK AM25 AC Input Electronic Limit DC Tubular Motor: 433.92 MHz^{[1; 2026-10-01]}; Somfy Roll Up 28 · 1.1 Nm · 20 rpm: 433.42 MHz^{[2; 2026-10-06]}.

Last verified: 2026-10-06

When to choose A-OK AM25 AC Input Electronic Limit DC Tubular Motor

For the stated supply type: AC mains^{[1; 2026-09-30]}, DC^{[1; 2026-09-30]}.
For a rated torque of 1.2 Nm^{[1; 2026-09-30]}.
For a rated speed of 25 rpm^{[1; 2026-09-30]}.
For the stated control protocol: Proprietary RF^{[1; 2026-09-30]}, RS-485^{[1; 2026-09-30]}.

When to choose Somfy Roll Up 28 · 1.1 Nm · 20 rpm

For a supply rated 12 V^{[2; 2026-10-06]}.
For the stated supply type: Battery^{[2; 2026-10-06]}, DC^{[2; 2026-10-06]}.
For a rated torque of 1.1 Nm^{[2; 2026-10-06]}.
For a rated speed of 20 rpm^{[2; 2026-10-06]}.

Verifiable indicators

Short-time duty (S2) — A-OK AM25 AC Input Electronic Limit DC Tubular Motor: Not published. Somfy Roll Up 28 · 1.1 Nm · 20 rpm: Not published.

Rated life — A-OK AM25 AC Input Electronic Limit DC Tubular Motor: Not published. Somfy Roll Up 28 · 1.1 Nm · 20 rpm: Not published.

Thermal protection — A-OK AM25 AC Input Electronic Limit DC Tubular Motor: Not published. Somfy Roll Up 28 · 1.1 Nm · 20 rpm: Not published.

IP rating — A-OK AM25 AC Input Electronic Limit DC Tubular Motor: IP44^{[1; 2026-09-30]}; Somfy Roll Up 28 · 1.1 Nm · 20 rpm: IP20^{[2; 2026-10-06]}.

Comparison table
Property	A-OK AM25 AC Input Electronic Limit DC Tubular MotorA-OKAM25-1.2/25-MEL-P	Somfy Roll Up 28 · 1.1 Nm · 20 rpmSomfy1240291
Series & variant axes
SeriesDiffers: AM25 vs Roll Up 28	AM25	Roll Up 28
Identity & lineage
Series / product line	AM25^{[1; 2026-09-30]}	Not published
Electrical
Rated voltage	Not published	12 V^{[2; 2026-10-06]}
Supply voltage (min)	100 V^{[1; 2026-09-30]}	Not published
Supply voltage (max)	240 V^{[1; 2026-09-30]}	Not published
Power supply type	AC mains^{[1; 2026-09-30]}, DC^{[1; 2026-09-30]}	Battery^{[2; 2026-10-06]}, DC^{[2; 2026-10-06]}
Supply rating (as stated)	100-240V^{[1; 2026-09-30]}	Not published
Rated power input	1.2 W^{[1; 2026-09-30]}	Not published
Drive performance
Rated torqueDiffers: 1.2 Nm^{[1; 2026-09-30]} vs 1.1 Nm^{[2; 2026-10-06]}	1.2 Nm^{[1; 2026-09-30]}	1.1 Nm^{[2; 2026-10-06]}
Rated speedDiffers: 25 rpm^{[1; 2026-09-30]} vs 20 rpm^{[2; 2026-10-06]}	25 rpm^{[1; 2026-09-30]}	20 rpm^{[2; 2026-10-06]}
Limits & protection
Limit setting	Electronic^{[1; 2026-09-30]}	Electronic^{[2; 2026-10-06]}
Control & communication
Control protocolDiffers: Proprietary RF, RS-485^{[1; 2026-09-30]}^{[1; 2026-09-30]} vs RTS^{[2; 2026-10-06]}	Proprietary RF^{[1; 2026-09-30]}, RS-485^{[1; 2026-09-30]}	RTS^{[2; 2026-10-06]}
Radio frequencyDiffers: 433.92 MHz^{[1; 2026-10-01]} vs 433.42 MHz^{[2; 2026-10-06]}	433.92 MHz^{[1; 2026-10-01]}	433.42 MHz^{[2; 2026-10-06]}
Radio range	Not published	200 m^{[3; 2026-10-05]}
Battery & charging
Battery (as stated)	Not applicable	12V 2600 mAh (built-in Lithium-ion)^{[2; 2026-10-06]}
Battery capacity	Not applicable	2,600 mAh^{[2; 2026-10-06]}
Environment & protection
IP ratingDiffers: IP44^{[1; 2026-09-30]} vs IP20^{[2; 2026-10-06]}	IP44^{[1; 2026-09-30]}Highest stated	IP20^{[2; 2026-10-06]}
Operating temp. (min)	Not published	0 °C^{[2; 2026-10-06]}
Operating temp. (max)	Not published	60 °C^{[2; 2026-10-06]}
Noise level	Not published	56 dB(A)^{[3; 2026-10-05]}
Compliance & declarations
Marks stated by vendor	Not published	CE^{[3; 2026-10-05]}
Documents	Request datasheet	Request datasheet

Series

Questions and answers

What supply voltage and frequency does each use?: Rated voltage — Somfy Roll Up 28 · 1.1 Nm · 20 rpm: 12 V. Power supply type — A-OK AM25 AC Input Electronic Limit DC Tubular Motor: AC mains, DC; Somfy Roll Up 28 · 1.1 Nm · 20 rpm: Battery, DC.
What torque and speed is each rated for?: Rated torque — A-OK AM25 AC Input Electronic Limit DC Tubular Motor: 1.2 Nm; Somfy Roll Up 28 · 1.1 Nm · 20 rpm: 1.1 Nm. Rated speed — A-OK AM25 AC Input Electronic Limit DC Tubular Motor: 25 rpm; Somfy Roll Up 28 · 1.1 Nm · 20 rpm: 20 rpm.
What protocols and control options does each support?: Limit setting — A-OK AM25 AC Input Electronic Limit DC Tubular Motor: Electronic; Somfy Roll Up 28 · 1.1 Nm · 20 rpm: Electronic. Control protocol — A-OK AM25 AC Input Electronic Limit DC Tubular Motor: Proprietary RF, RS-485; Somfy Roll Up 28 · 1.1 Nm · 20 rpm: RTS.
What certifications are on record for each?: Marks stated by vendor — Somfy Roll Up 28 · 1.1 Nm · 20 rpm: CE.

Sources

↑A-OK Motor manufacturer site (product catalog)a-okmotor.comSeries / product line: AM25 AC Input Electronic Limit DC Tubular MotorManufacturer-stated · Observed 2026-09-30 · Retrieved 2026-09-23 · Public web pageUsed for: 2731, 7127, 7129, 2724, 2723, 2722, 2727, 2720, 2721, 2730, 2728, 2729, 9847, 2725
↑Somfy PDF catalogueservice.somfy.comRated voltage: Voltage Supply: 12V DC [1240291] (p. 6)Manufacturer-stated · Observed 2026-10-06 · Retrieved 2026-10-06 · Public web pageUsed for: 50458, 50460, 50459, 50465, 50466, 50462, 50467, 50468, 50469, 50470, 50461, 50463, 50464
↑Somfy Systems (North America) manufacturer site (product catalog)somfysystems.comRadio range: Range in open field 656.2 ftManufacturer-stated · Observed 2026-10-05 · Retrieved 2026-09-30 · Public web pageUsed for: 49827, 49829, 49830

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A-OK AM25 AC Input Electronic Limit DC Tubular Motor vs Somfy Roll Up 28 · 1.1 Nm · 20 rpm