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Last verified: 2026-10-05

Verifiable indicators

Short-time duty (S2) — Wistar motor WSERD30-L · 1.5 Nm · 20 rpm: Not published. A-OK AM25 AC Input Electronic Limit DC Tubular Motor: Not published. A-OK AM28 AC Input Electronic Limit DC Tubular Motor: Not published.

Rated life — Wistar motor WSERD30-L · 1.5 Nm · 20 rpm: Not published. A-OK AM25 AC Input Electronic Limit DC Tubular Motor: Not published. A-OK AM28 AC Input Electronic Limit DC Tubular Motor: Not published.

Thermal protection — Wistar motor WSERD30-L · 1.5 Nm · 20 rpm: Not published. A-OK AM25 AC Input Electronic Limit DC Tubular Motor: Not published. A-OK AM28 AC Input Electronic Limit DC Tubular Motor: Not published.

IP rating — Wistar motor WSERD30-L · 1.5 Nm · 20 rpm: IP20^{[1; 2026-10-01]}; A-OK AM25 AC Input Electronic Limit DC Tubular Motor: IP44^{[2; 2026-09-30]}; A-OK AM28 AC Input Electronic Limit DC Tubular Motor: IP44^{[2; 2026-09-30]}.

Comparison table
Property	Wistar motor WSERD30-L · 1.5 Nm · 20 rpmWistar motorWSERD30-L-1.5/20	A-OK AM25 AC Input Electronic Limit DC Tubular MotorA-OKAM25-1.2/25-MEL-P	A-OK AM28 AC Input Electronic Limit DC Tubular MotorA-OKAM28-1.8/25-MEL-P
Series & variant axes
SeriesDiffers: WSERD30-L vs AM25 vs AM28	WSERD30-L	AM25	AM28
Electrical
Rated voltage	12 V^{[1; 2026-10-01]}	Not published	Not published
Supply voltage (min)	Not published	100 V^{[2; 2026-09-30]}	100 V^{[2; 2026-09-30]}
Supply voltage (max)	Not published	240 V^{[2; 2026-09-30]}	240 V^{[2; 2026-09-30]}
Power supply type	DC^{[1; 2026-10-01]}	AC mains^{[2; 2026-09-30]}, DC^{[2; 2026-09-30]}	AC mains^{[2; 2026-09-30]}, DC^{[2; 2026-09-30]}
Supply rating (as stated)	Not published	100-240V^{[2; 2026-09-30]}	100-240V^{[2; 2026-09-30]}
Rated power inputDiffers: 8.1 W^{[1; 2026-10-01]} vs 1.2 W^{[2; 2026-09-30]} vs 19.2 W^{[2; 2026-09-30]}	8.1 W^{[1; 2026-10-01]}	1.2 W^{[2; 2026-09-30]}	19.2 W^{[2; 2026-09-30]}
Rated currentDiffers: 0.73 A^{[1; 2026-10-01]} vs Not published vs 2.5 A^{[2; 2026-09-30]}	0.73 A^{[1; 2026-10-01]}	Not published	2.5 A^{[2; 2026-09-30]}
Drive performance
Rated torqueDiffers: 1.5 Nm^{[1; 2026-10-01]} vs 1.2 Nm^{[2; 2026-09-30]} vs 1.8 Nm^{[2; 2026-09-30]}	1.5 Nm^{[1; 2026-10-01]}	1.2 Nm^{[2; 2026-09-30]}	1.8 Nm^{[2; 2026-09-30]}
Rated speedDiffers: 20 rpm^{[1; 2026-10-01]} vs 25 rpm^{[2; 2026-09-30]} vs 25 rpm^{[2; 2026-09-30]}	20 rpm^{[1; 2026-10-01]}	25 rpm^{[2; 2026-09-30]}	25 rpm^{[2; 2026-09-30]}
Dimensions & mounting
Motor diameter	25 mm^{[1; 2026-10-01]}	Not published	Not published
Overall length	310 mm^{[1; 2026-10-01]}	Not published	Not published
Limits & protection
Limit setting	Not published	Electronic^{[2; 2026-09-30]}	Electronic^{[2; 2026-09-30]}
Control & communication
Control protocolDiffers: Not published vs Proprietary RF, RS-485^{[2; 2026-09-30]}^{[2; 2026-09-30]} vs Matter, Proprietary RF, Wi-Fi, Zigbee^{[2; 2026-09-30]}^{[2; 2026-09-30]}^{[2; 2026-09-30]}^{[2; 2026-09-30]}	Not published	Proprietary RF^{[2; 2026-09-30]}, RS-485^{[2; 2026-09-30]}	Matter^{[2; 2026-09-30]}, Proprietary RF^{[2; 2026-09-30]}, Wi-Fi^{[2; 2026-09-30]}, Zigbee^{[2; 2026-09-30]}
Radio frequency	Not published	433.92 MHz^{[2; 2026-10-01]}	433.92 MHz^{[2; 2026-10-05]}
Environment & protection
IP ratingDiffers: IP20^{[1; 2026-10-01]} vs IP44^{[2; 2026-09-30]} vs IP44^{[2; 2026-09-30]}	IP20^{[1; 2026-10-01]}	IP44^{[2; 2026-09-30]}Highest stated	IP44^{[2; 2026-09-30]}Highest stated
Documents	Request datasheet	Request datasheet	Request datasheet

Data gaps

Wistar motor WSERD30-L · 1.5 Nm · 20 rpm: Limit range — Not yet collected

Sources

↑Wistar motor manufacturer site (product catalog)wistarmotor.comSeries / product line: Ref: WSERD30-LManufacturer-stated · Observed 2026-10-01 · Retrieved 2026-10-01 · Public web pageUsed for: 15716, 15710, 15705, 15709, 15712, 15703, 15704, 15707, 15714, 15706
↑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, 2757, 7127, 7131, 7129, 7134, 2724, 2723, 2747, 2746, 2722, 2745, 2727, 2750, 2751, 2720, 2743, 2721, 2744, 2730, 2756, 2728, 2729, 2754, 2752, 2755, 2753, 9847, 49195, 2725, 2748

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Verifiable indicators

Data gaps

Sources