What supply voltage and frequency does each use?

Rated voltage — A-OK AM45 Built-in Ultra-Quiet Electronic Limit AC Tubular Motor: 230 V; Wistar motor WSS40S · 3 Nm · 28 rpm: 230 V. Mains frequency — Wistar motor WSS40S · 3 Nm · 28 rpm: 50 Hz. Power supply type — A-OK AM45 Built-in Ultra-Quiet Electronic Limit AC Tubular Motor: AC mains; Wistar motor WSS40S · 3 Nm · 28 rpm: AC mains.

What torque and speed is each rated for?

Rated torque — A-OK AM45 Built-in Ultra-Quiet Electronic Limit AC Tubular Motor: 3 Nm; Wistar motor WSS40S · 3 Nm · 28 rpm: 3 Nm. Rated speed — A-OK AM45 Built-in Ultra-Quiet Electronic Limit AC Tubular Motor: 28 rpm; Wistar motor WSS40S · 3 Nm · 28 rpm: 28 rpm.

What protocols and control options does each support?

Limit setting — A-OK AM45 Built-in Ultra-Quiet Electronic Limit AC Tubular Motor: Electronic; Wistar motor WSS40S · 3 Nm · 28 rpm: Mechanical. Control protocol — A-OK AM45 Built-in Ultra-Quiet Electronic Limit AC Tubular Motor: Proprietary RF.

Which durability indicators does each publish?

OpenAxia does not rate reliability; the published indicators are: Short-time duty (S2) — Wistar motor WSS40S · 3 Nm · 28 rpm: 4 min. IP rating — A-OK AM45 Built-in Ultra-Quiet Electronic Limit AC Tubular Motor: IP44; Wistar motor WSS40S · 3 Nm · 28 rpm: IP44.

A-OK AM45 Built-in Ultra-Quiet Electronic: 85 W vs 116 W

Rated power input — A-OK AM45 Built-in Ultra-Quiet Electronic Limit AC Tubular Motor: 85 W^{[1; 2026-09-30]}; Wistar motor WSS40S · 3 Nm · 28 rpm: 116 W^{[2; 2026-10-01]}.

Rated current — A-OK AM45 Built-in Ultra-Quiet Electronic Limit AC Tubular Motor: 0.4 A^{[1; 2026-09-30]}; Wistar motor WSS40S · 3 Nm · 28 rpm: 0.49 A^{[2; 2026-10-01]}.

Last verified: 2026-10-01

When to choose A-OK AM45 Built-in Ultra-Quiet Electronic Limit AC Tubular Motor

For a supply rated 230 V^{[1; 2026-09-30]}.
For the stated supply type: AC mains^{[1; 2026-09-30]}.
For a rated torque of 3 Nm^{[1; 2026-09-30]}.
For a rated speed of 28 rpm^{[1; 2026-09-30]}.

When to choose Wistar motor WSS40S · 3 Nm · 28 rpm

For 230 V^{[2; 2026-10-01]} / 50 Hz^{[2; 2026-10-01]} mains.
For the stated supply type: AC mains^{[2; 2026-10-01]}.
For the stated diameter: 35 mm^{[2; 2026-10-01]}.
For a rated torque of 3 Nm^{[2; 2026-10-01]}.

Verifiable indicators

Short-time duty (S2) — Wistar motor WSS40S · 3 Nm · 28 rpm: 4 min^{[2; 2026-10-01]}. A-OK AM45 Built-in Ultra-Quiet Electronic Limit AC Tubular Motor: Not published.

Rated life — A-OK AM45 Built-in Ultra-Quiet Electronic Limit AC Tubular Motor: Not published. Wistar motor WSS40S · 3 Nm · 28 rpm: Not published.

Thermal protection — A-OK AM45 Built-in Ultra-Quiet Electronic Limit AC Tubular Motor: Not published. Wistar motor WSS40S · 3 Nm · 28 rpm: Not published.

IP rating — A-OK AM45 Built-in Ultra-Quiet Electronic Limit AC Tubular Motor: IP44^{[1; 2026-09-30]}; Wistar motor WSS40S · 3 Nm · 28 rpm: IP44^{[2; 2026-10-01]}.

Comparison table
Property	A-OK AM45 Built-in Ultra-Quiet Electronic Limit AC Tubular MotorA-OKAM45G-3/28-Q-MEL	Wistar motor WSS40S · 3 Nm · 28 rpmWistar motorWSS40S-3/28
Series & variant axes
SeriesDiffers: AM45 vs WSS40S	AM45	WSS40S
Electrical
Rated voltage	230 V^{[1; 2026-09-30]}	230 V^{[2; 2026-10-01]}
Mains frequency	Not published	50 Hz^{[2; 2026-10-01]}
Power supply type	AC mains^{[1; 2026-09-30]}	AC mains^{[2; 2026-10-01]}
Rated power inputDiffers: 85 W^{[1; 2026-09-30]} vs 116 W^{[2; 2026-10-01]}	85 W^{[1; 2026-09-30]}	116 W^{[2; 2026-10-01]}
Rated currentDiffers: 0.4 A^{[1; 2026-09-30]} vs 0.49 A^{[2; 2026-10-01]}	0.4 A^{[1; 2026-09-30]}	0.49 A^{[2; 2026-10-01]}
Drive performance
Rated torque	3 Nm^{[1; 2026-09-30]}	3 Nm^{[2; 2026-10-01]}
Rated speed	28 rpm^{[1; 2026-09-30]}	28 rpm^{[2; 2026-10-01]}
Short-time duty (S2)	Not published	4 min^{[2; 2026-10-01]}
Dimensions & mounting
Motor diameter	Not published	35 mm^{[2; 2026-10-01]}
Overall length	Not published	405 mm^{[2; 2026-10-01]}
Weight	Not published	1.24 kg^{[2; 2026-10-01]}
Limits & protection
Limit settingDiffers: Electronic^{[1; 2026-09-30]} vs Mechanical^{[2; 2026-10-01]}	Electronic^{[1; 2026-09-30]}	Mechanical^{[2; 2026-10-01]}
Limit range	Not published	9 turns^{[2; 2026-10-01]}
Control & communication
Control protocol	Proprietary RF^{[1; 2026-09-30]}	Not published
Radio frequency	433.92 MHz^{[1; 2026-10-01]}	Not published
Environment & protection
IP rating	IP44^{[1; 2026-09-30]}	IP44^{[2; 2026-10-01]}
Documents	Request datasheet	Request datasheet

Series

Cross-brand alternatives

Becker P3-30-S12: 3 Nm^{[Becker-Antriebe GmbH PDF catalogue Gesamtkatalog__4995_800_000_0__Einzelseiten_D.pdf; 2026-10-03]}, Ø 35 mm^{[Becker-Antriebe product centre (product catalog); 2026-10-01]}, 230 V^{[Becker-Antriebe GmbH PDF catalogue Gesamtkatalog__4995_800_000_0__Einzelseiten_D.pdf; 2026-10-03]}
Gaposa SILEO XQ4E333: 3 Nm^{[Gaposa manufacturer site (product catalog); 2026-10-01]}, Ø 35 mm^{[Gaposa manufacturer site (product catalog); 2026-10-01]}, 230 V^{[Gaposa manufacturer site (product catalog); 2026-10-01]}
Gaposa SILEO XQ4EX333: 3 Nm^{[Gaposa manufacturer site (product catalog); 2026-10-01]}, Ø 35 mm^{[Gaposa manufacturer site (product catalog); 2026-10-01]}, 230 V^{[Gaposa manufacturer site (product catalog); 2026-10-01]}
Gaposa SILEO XQ4P333: 3 Nm^{[Gaposa manufacturer site (product catalog); 2026-10-01]}, Ø 35 mm^{[Gaposa manufacturer site (product catalog); 2026-10-01]}, 230 V^{[Gaposa manufacturer site (product catalog); 2026-10-01]}
Gaposa SILEO XS4EX330: 3 Nm^{[Gaposa manufacturer site (product catalog); 2026-10-01]}, Ø 35 mm^{[Gaposa manufacturer site (product catalog); 2026-10-01]}, 230 V^{[Gaposa manufacturer site (product catalog); 2026-10-01]}
Gaposa SILEO XS4E330: 3 Nm^{[Gaposa manufacturer site (product catalog); 2026-10-01]}, Ø 35 mm^{[Gaposa manufacturer site (product catalog); 2026-10-01]}, 230 V^{[Gaposa manufacturer site (product catalog); 2026-10-01]}

Questions and answers

What supply voltage and frequency does each use?: Rated voltage — A-OK AM45 Built-in Ultra-Quiet Electronic Limit AC Tubular Motor: 230 V; Wistar motor WSS40S · 3 Nm · 28 rpm: 230 V. Mains frequency — Wistar motor WSS40S · 3 Nm · 28 rpm: 50 Hz. Power supply type — A-OK AM45 Built-in Ultra-Quiet Electronic Limit AC Tubular Motor: AC mains; Wistar motor WSS40S · 3 Nm · 28 rpm: AC mains.
What torque and speed is each rated for?: Rated torque — A-OK AM45 Built-in Ultra-Quiet Electronic Limit AC Tubular Motor: 3 Nm; Wistar motor WSS40S · 3 Nm · 28 rpm: 3 Nm. Rated speed — A-OK AM45 Built-in Ultra-Quiet Electronic Limit AC Tubular Motor: 28 rpm; Wistar motor WSS40S · 3 Nm · 28 rpm: 28 rpm.
What protocols and control options does each support?: Limit setting — A-OK AM45 Built-in Ultra-Quiet Electronic Limit AC Tubular Motor: Electronic; Wistar motor WSS40S · 3 Nm · 28 rpm: Mechanical. Control protocol — A-OK AM45 Built-in Ultra-Quiet Electronic Limit AC Tubular Motor: Proprietary RF.
Which durability indicators does each publish?: OpenAxia does not rate reliability; the published indicators are: Short-time duty (S2) — Wistar motor WSS40S · 3 Nm · 28 rpm: 4 min. IP rating — A-OK AM45 Built-in Ultra-Quiet Electronic Limit AC Tubular Motor: IP44; Wistar motor WSS40S · 3 Nm · 28 rpm: IP44.

Sources

↑A-OK Motor manufacturer site (product catalog)a-okmotor.comSeries / product line: AM45 Built-in Ultra-Quiet Electronic Limit AC Tubular MotorManufacturer-stated · Observed 2026-09-30 · Retrieved 2026-09-23 · Public web pageUsed for: 2661, 2656, 2653, 2657, 2658, 2651, 2652, 2660, 2659, 9833, 2654
↑Wistar motor manufacturer site (product catalog)wistarmotor.comSeries / product line: Ref: WSS40SManufacturer-stated · Observed 2026-10-01 · Retrieved 2026-10-01 · Public web pageUsed for: 12361, 12347, 12358, 12341, 12345, 12348, 12339, 12340, 12350, 12343, 12353, 12356, 12363, 12355, 12342

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A-OK AM45 Built-in Ultra-Quiet Electronic Limit AC Tubular Motor vs Wistar motor WSS40S · 3 Nm · 28 rpm