What supply voltage and frequency does each use?

Rated voltage — Wistar motor WSER50 · 20 Nm · 17 rpm: 230 V; Wistar motor WSER50 · 20 Nm · 28 rpm: 230 V. Mains frequency — Wistar motor WSER50 · 20 Nm · 17 rpm: 50 Hz; Wistar motor WSER50 · 20 Nm · 28 rpm: 50 Hz. Power supply type — Wistar motor WSER50 · 20 Nm · 17 rpm: AC mains; Wistar motor WSER50 · 20 Nm · 28 rpm: AC mains.

Which tube diameters do they fit?

Motor diameter — Wistar motor WSER50 · 20 Nm · 17 rpm: 45 mm; Wistar motor WSER50 · 20 Nm · 28 rpm: 45 mm.

What torque and speed is each rated for?

Rated torque — Wistar motor WSER50 · 20 Nm · 17 rpm: 20 Nm; Wistar motor WSER50 · 20 Nm · 28 rpm: 20 Nm. Rated speed — Wistar motor WSER50 · 20 Nm · 17 rpm: 17 rpm; Wistar motor WSER50 · 20 Nm · 28 rpm: 28 rpm.

What protocols and control options does each support?

Limit setting — Wistar motor WSER50 · 20 Nm · 17 rpm: Electronic; Wistar motor WSER50 · 20 Nm · 28 rpm: Electronic.

Wistar motor WSER50 · 20 Nm: 17 rpm vs 28 rpm Compared

Rated power input — Wistar motor WSER50 · 20 Nm · 17 rpm: 203 W^{[1; 2026-10-01]}; Wistar motor WSER50 · 20 Nm · 28 rpm: 244 W^{[1; 2026-10-01]}.

Rated current — Wistar motor WSER50 · 20 Nm · 17 rpm: 0.84 A^{[1; 2026-10-01]}; Wistar motor WSER50 · 20 Nm · 28 rpm: 1.06 A^{[1; 2026-10-01]}.

Rated speed — Wistar motor WSER50 · 20 Nm · 17 rpm^{[1; 2026-10-01]}: 17 rpm; Wistar motor WSER50 · 20 Nm · 28 rpm^{[1; 2026-10-01]}: 28 rpm.

Last verified: 2026-10-07

When to choose Wistar motor WSER50 · 20 Nm · 17 rpm

For 230 V^{[1; 2026-10-01]} / 50 Hz^{[1; 2026-10-01]} mains.
For the stated supply type: AC mains^{[1; 2026-10-01]}.
For the stated diameter: 45 mm^{[1; 2026-10-01]}.
For a rated torque of 20 Nm^{[1; 2026-10-01]}.

When to choose Wistar motor WSER50 · 20 Nm · 28 rpm

For 230 V^{[1; 2026-10-01]} / 50 Hz^{[1; 2026-10-01]} mains.
For the stated supply type: AC mains^{[1; 2026-10-01]}.
For the stated diameter: 45 mm^{[1; 2026-10-01]}.
For a rated torque of 20 Nm^{[1; 2026-10-01]}.

Verifiable indicators

Short-time duty (S2) — Wistar motor WSER50 · 20 Nm · 17 rpm: 4 min^{[1; 2026-10-01]}; Wistar motor WSER50 · 20 Nm · 28 rpm: 4 min^{[1; 2026-10-01]}.

Rated life — Wistar motor WSER50 · 20 Nm · 17 rpm: Not published. Wistar motor WSER50 · 20 Nm · 28 rpm: Not published.

Thermal protection — Wistar motor WSER50 · 20 Nm · 17 rpm: Not published. Wistar motor WSER50 · 20 Nm · 28 rpm: Not published.

IP rating — Wistar motor WSER50 · 20 Nm · 17 rpm: IP44^{[2; 2026-10-06]}; Wistar motor WSER50 · 20 Nm · 28 rpm: IP44^{[2; 2026-10-06]}.

Comparison table
Property	Wistar motor WSER50 · 20 Nm · 17 rpmWistar motorWSER50-20/17	Wistar motor WSER50 · 20 Nm · 28 rpmWistar motorWSER50-20/27
Series & variant axes
Series	WSER50	WSER50
Electrical
Rated voltage	230 V^{[1; 2026-10-01]}	230 V^{[1; 2026-10-01]}
Mains frequency	50 Hz^{[1; 2026-10-01]}	50 Hz^{[1; 2026-10-01]}
Power supply type	AC mains^{[1; 2026-10-01]}	AC mains^{[1; 2026-10-01]}
Rated power inputDiffers: 203 W^{[1; 2026-10-01]} vs 244 W^{[1; 2026-10-01]}	203 W^{[1; 2026-10-01]}	244 W^{[1; 2026-10-01]}
Rated currentDiffers: 0.84 A^{[1; 2026-10-01]} vs 1.06 A^{[1; 2026-10-01]}	0.84 A^{[1; 2026-10-01]}	1.06 A^{[1; 2026-10-01]}
Drive performance
Rated torque	20 Nm^{[1; 2026-10-01]}	20 Nm^{[1; 2026-10-01]}
Rated speedDiffers: 17 rpm^{[1; 2026-10-01]} vs 28 rpm^{[1; 2026-10-01]}	17 rpm^{[1; 2026-10-01]}	28 rpm^{[1; 2026-10-01]}
Short-time duty (S2)	4 min^{[1; 2026-10-01]}	4 min^{[1; 2026-10-01]}
Dimensions & mounting
Motor diameter	45 mm^{[1; 2026-10-01]}	45 mm^{[1; 2026-10-01]}
Overall lengthDiffers: 570 mm^{[1; 2026-10-01]} vs 600 mm^{[1; 2026-10-01]}	570 mm^{[1; 2026-10-01]}	600 mm^{[1; 2026-10-01]}
Weight	2.35 kg^{[1; 2026-10-01]}	2.35 kg^{[1; 2026-10-01]}
Limits & protection
Limit setting	Electronic^{[1; 2026-10-01]}	Electronic^{[1; 2026-10-01]}
Control & communication
Max paired transmitters	15 pcs^{[2; 2026-10-06]}	15 pcs^{[2; 2026-10-06]}
Environment & protection
IP rating	IP44^{[2; 2026-10-06]}	IP44^{[2; 2026-10-06]}
Operating temp. (min)	-10 °C^{[2; 2026-10-07]}	-10 °C^{[2; 2026-10-07]}
Operating temp. (max)	55 °C^{[2; 2026-10-07]}	55 °C^{[2; 2026-10-07]}
View all 29 variants
Documents	Request datasheet	Request datasheet

Relations and interchangeability

Wistar motor WSER50 · 20 Nm · 17 rpm → Wistar motor WSER50 · 20 Nm · 28 rpm

Not directly interchangeable

Same product type (tubular motor)
Ø45 mm (same class)
Torque 20 Nm (same)
230 V (same)
Power supply AC mains (same)
Mains 50 Hz (same)
Limits: Electronic (same)
Protection IP44
Speed 28 rpm vs 17 rpm
Control system not confirmed
30 mm longer: check the space between brackets

Required changes / checks: Control system not confirmed; 30 mm longer: check the space between brackets

Not checked: crown & drive adapters and motor head; Not checked: brackets; Not checked: remote pairing; Not checked: wiring

Wistar motor WSER50 · 20 Nm · 28 rpm → Wistar motor WSER50 · 20 Nm · 17 rpm

Not directly interchangeable

Same product type (tubular motor)
Ø45 mm (same class)
Torque 20 Nm (same)
230 V (same)
Power supply AC mains (same)
Mains 50 Hz (same)
Limits: Electronic (same)
Length 570 mm
Protection IP44
Speed 17 rpm vs 28 rpm
Control system not confirmed

Required changes / checks: Control system not confirmed

Not checked: crown & drive adapters and motor head; Not checked: brackets; Not checked: remote pairing; Not checked: wiring

Cross-brand alternatives

Becker R20-17-EVO 20 R PLUS BT: 20 Nm^{[Becker-Antriebe GmbH PDF catalogue Gesamtkatalog__4995_800_000_0__Einzelseiten_D.pdf; 2026-10-03]}, Ø 45 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]}
Becker R20-17-C01 PLUS: 20 Nm^{[Becker-Antriebe GmbH PDF catalogue Gesamtkatalog__4995_800_000_0__Einzelseiten_D.pdf; 2026-10-03]}, Ø 45 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]}
Becker R20-17-D01: 20 Nm^{[Becker-Antriebe GmbH PDF catalogue Gesamtkatalog__4995_800_000_0__Einzelseiten_D.pdf; 2026-10-03]}, Ø 45 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]}
Becker R20-17-EVO 20 R BT: 20 Nm^{[Becker-Antriebe GmbH PDF catalogue Gesamtkatalog__4995_800_000_0__Einzelseiten_D.pdf; 2026-10-03]}, Ø 45 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]}
Becker R20-17 EVO 20 R: 20 Nm^{[Becker-Antriebe GmbH PDF catalogue Gesamtkatalog__4995_800_000_0__Einzelseiten_D.pdf; 2026-10-03]}, Ø 45 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]}
Becker R20-17-E01: 20 Nm^{[Becker-Antriebe GmbH PDF catalogue Gesamtkatalog__4995_800_000_0__Einzelseiten_D.pdf; 2026-10-03]}, Ø 45 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]}

Data gaps

Wistar motor WSER50 · 20 Nm · 17 rpm: Limit range — Not yet collected
Wistar motor WSER50 · 20 Nm · 28 rpm: Limit range — Not yet collected

Questions and answers

What supply voltage and frequency does each use?: Rated voltage — Wistar motor WSER50 · 20 Nm · 17 rpm: 230 V; Wistar motor WSER50 · 20 Nm · 28 rpm: 230 V. Mains frequency — Wistar motor WSER50 · 20 Nm · 17 rpm: 50 Hz; Wistar motor WSER50 · 20 Nm · 28 rpm: 50 Hz. Power supply type — Wistar motor WSER50 · 20 Nm · 17 rpm: AC mains; Wistar motor WSER50 · 20 Nm · 28 rpm: AC mains.
Which tube diameters do they fit?: Motor diameter — Wistar motor WSER50 · 20 Nm · 17 rpm: 45 mm; Wistar motor WSER50 · 20 Nm · 28 rpm: 45 mm.
What torque and speed is each rated for?: Rated torque — Wistar motor WSER50 · 20 Nm · 17 rpm: 20 Nm; Wistar motor WSER50 · 20 Nm · 28 rpm: 20 Nm. Rated speed — Wistar motor WSER50 · 20 Nm · 17 rpm: 17 rpm; Wistar motor WSER50 · 20 Nm · 28 rpm: 28 rpm.
What protocols and control options does each support?: Limit setting — Wistar motor WSER50 · 20 Nm · 17 rpm: Electronic; Wistar motor WSER50 · 20 Nm · 28 rpm: Electronic.

Sources

↑Wistar motor manufacturer site (product catalog)wistarmotor.comSeries / product line: Ref: WSER50Manufacturer-stated · Observed 2026-10-01 · Retrieved 2026-10-01 · Public web pageUsed for: 16636, 16657, 16624, 16651, 16634, 16656, 16614, 16646, 16622, 16650, 16626, 16652, 16612, 16642, 16613, 16644, 16628, 16653, 16618, 16648, 16630, 16654, 16632, 16655, 16638, 16658
↑Wistar motor PDF catalogue WSER40-WSER50-WSER60wistarmotor.comMax paired transmitters: 最多可存储遥控器15个: 15 (p. 1)Manufacturer-stated · Observed 2026-10-06 · Retrieved 2026-10-06 · Public web pageUsed for: 49930, 49932, 49929, 49931, 52384, 52386, 52385, 52387

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Wistar motor WSER50 · 20 Nm · 17 rpm vs Wistar motor WSER50 · 20 Nm · 28 rpm