What supply voltage and frequency does each use?

Rated voltage — Wistar motor WSM50 · 20 Nm · 16 rpm: 120 V; Wistar motor WSM50 · 20 Nm · 17 rpm: 230 V. Mains frequency — Wistar motor WSM50 · 20 Nm · 16 rpm: 60 Hz; Wistar motor WSM50 · 20 Nm · 17 rpm: 50 Hz. Power supply type — Wistar motor WSM50 · 20 Nm · 16 rpm: AC mains; Wistar motor WSM50 · 20 Nm · 17 rpm: AC mains.

Which tube diameters do they fit?

Motor diameter — Wistar motor WSM50 · 20 Nm · 16 rpm: 45 mm; Wistar motor WSM50 · 20 Nm · 17 rpm: 45 mm.

What torque and speed is each rated for?

Rated torque — Wistar motor WSM50 · 20 Nm · 16 rpm: 20 Nm; Wistar motor WSM50 · 20 Nm · 17 rpm: 20 Nm. Rated speed — Wistar motor WSM50 · 20 Nm · 16 rpm: 16 rpm; Wistar motor WSM50 · 20 Nm · 17 rpm: 17 rpm.

What protocols and control options does each support?

Limit setting — Wistar motor WSM50 · 20 Nm · 16 rpm: Mechanical; Wistar motor WSM50 · 20 Nm · 17 rpm: Mechanical.

Wistar motor WSM50 · 20 Nm: 16 rpm vs 17 rpm Compared

Rated voltage — Wistar motor WSM50 · 20 Nm · 16 rpm: 120 V^{[1; 2026-10-02]}; Wistar motor WSM50 · 20 Nm · 17 rpm: 230 V^{[1; 2026-10-01]}.

Rated power input — Wistar motor WSM50 · 20 Nm · 16 rpm: 150 W^{[1; 2026-10-02]}; Wistar motor WSM50 · 20 Nm · 17 rpm: 203 W^{[1; 2026-10-01]}.

Rated current — Wistar motor WSM50 · 20 Nm · 16 rpm: 1.26 A^{[1; 2026-10-02]}; Wistar motor WSM50 · 20 Nm · 17 rpm: 0.84 A^{[1; 2026-10-01]}.

Last verified: 2026-10-02

When to choose Wistar motor WSM50 · 20 Nm · 16 rpm

For 120 V^{[1; 2026-10-02]} / 60 Hz^{[1; 2026-10-02]} mains.
For the stated supply type: AC mains^{[1; 2026-10-02]}.
For the stated diameter: 45 mm^{[1; 2026-10-02]}.
For a rated torque of 20 Nm^{[1; 2026-10-02]}.

When to choose Wistar motor WSM50 · 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]}.

Verifiable indicators

Short-time duty (S2) — Wistar motor WSM50 · 20 Nm · 16 rpm: 4 min^{[1; 2026-10-02]}; Wistar motor WSM50 · 20 Nm · 17 rpm: 4 min^{[1; 2026-10-01]}.

Rated life — Wistar motor WSM50 · 20 Nm · 16 rpm: Not published. Wistar motor WSM50 · 20 Nm · 17 rpm: Not published.

Thermal protection — Wistar motor WSM50 · 20 Nm · 16 rpm: Not published. Wistar motor WSM50 · 20 Nm · 17 rpm: Not published.

IP rating — Wistar motor WSM50 · 20 Nm · 16 rpm: IP44^{[1; 2026-10-02]}; Wistar motor WSM50 · 20 Nm · 17 rpm: IP44^{[1; 2026-10-01]}.

Comparison table
Property	Wistar motor WSM50 · 20 Nm · 16 rpmWistar motorWSM50-20/16	Wistar motor WSM50 · 20 Nm · 17 rpmWistar motorWSM50-20/17
Series & variant axes
Series	WSM50	WSM50
Electrical
Rated voltageDiffers: 120 V^{[1; 2026-10-02]} vs 230 V^{[1; 2026-10-01]}	120 V^{[1; 2026-10-02]}	230 V^{[1; 2026-10-01]}
Mains frequencyDiffers: 60 Hz^{[1; 2026-10-02]} vs 50 Hz^{[1; 2026-10-01]}	60 Hz^{[1; 2026-10-02]}	50 Hz^{[1; 2026-10-01]}
Power supply type	AC mains^{[1; 2026-10-02]}	AC mains^{[1; 2026-10-01]}
Rated power inputDiffers: 150 W^{[1; 2026-10-02]} vs 203 W^{[1; 2026-10-01]}	150 W^{[1; 2026-10-02]}	203 W^{[1; 2026-10-01]}
Rated currentDiffers: 1.26 A^{[1; 2026-10-02]} vs 0.84 A^{[1; 2026-10-01]}	1.26 A^{[1; 2026-10-02]}	0.84 A^{[1; 2026-10-01]}
Drive performance
Rated torque	20 Nm^{[1; 2026-10-02]}	20 Nm^{[1; 2026-10-01]}
Rated speedDiffers: 16 rpm^{[1; 2026-10-02]} vs 17 rpm^{[1; 2026-10-01]}	16 rpm^{[1; 2026-10-02]}	17 rpm^{[1; 2026-10-01]}
Short-time duty (S2)	4 min^{[1; 2026-10-02]}	4 min^{[1; 2026-10-01]}
Dimensions & mounting
Motor diameter	45 mm^{[1; 2026-10-02]}	45 mm^{[1; 2026-10-01]}
Overall lengthDiffers: 630 mm^{[1; 2026-10-02]} vs 600 mm^{[1; 2026-10-01]}	630 mm^{[1; 2026-10-02]}	600 mm^{[1; 2026-10-01]}
Weight	3 kg^{[1; 2026-10-02]}	3 kg^{[1; 2026-10-01]}
Limits & protection
Limit setting	Mechanical^{[1; 2026-10-02]}	Mechanical^{[1; 2026-10-01]}
Limit range	27 turns^{[1; 2026-10-02]}	27 turns^{[1; 2026-10-01]}
Environment & protection
IP rating	IP44^{[1; 2026-10-02]}	IP44^{[1; 2026-10-01]}
View all 30 variants
Documents	Request datasheet	Request datasheet

Relations and interchangeability

Wistar motor WSM50 · 20 Nm · 16 rpm → Wistar motor WSM50 · 20 Nm · 17 rpm

Not directly interchangeable

Same product type (tubular motor)
Ø45 mm (same class)
Torque 20 Nm (same)
Speed 17 rpm (+6%)
Power supply AC mains (same)
Limits: Mechanical (same)
Length 600 mm
Limit turns 27
Protection IP44
230 V vs 120 V
Mains 50 Hz vs 60 Hz
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

Wistar motor WSM50 · 20 Nm · 17 rpm → Wistar motor WSM50 · 20 Nm · 16 rpm

Not directly interchangeable

Same product type (tubular motor)
Ø45 mm (same class)
Torque 20 Nm (same)
Speed 16 rpm (−6%)
Power supply AC mains (same)
Limits: Mechanical (same)
Limit turns 27
Protection IP44
120 V vs 230 V
Mains 60 Hz vs 50 Hz
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

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]}

Questions and answers

What supply voltage and frequency does each use?: Rated voltage — Wistar motor WSM50 · 20 Nm · 16 rpm: 120 V; Wistar motor WSM50 · 20 Nm · 17 rpm: 230 V. Mains frequency — Wistar motor WSM50 · 20 Nm · 16 rpm: 60 Hz; Wistar motor WSM50 · 20 Nm · 17 rpm: 50 Hz. Power supply type — Wistar motor WSM50 · 20 Nm · 16 rpm: AC mains; Wistar motor WSM50 · 20 Nm · 17 rpm: AC mains.
Which tube diameters do they fit?: Motor diameter — Wistar motor WSM50 · 20 Nm · 16 rpm: 45 mm; Wistar motor WSM50 · 20 Nm · 17 rpm: 45 mm.
What torque and speed is each rated for?: Rated torque — Wistar motor WSM50 · 20 Nm · 16 rpm: 20 Nm; Wistar motor WSM50 · 20 Nm · 17 rpm: 20 Nm. Rated speed — Wistar motor WSM50 · 20 Nm · 16 rpm: 16 rpm; Wistar motor WSM50 · 20 Nm · 17 rpm: 17 rpm.
What protocols and control options does each support?: Limit setting — Wistar motor WSM50 · 20 Nm · 16 rpm: Mechanical; Wistar motor WSM50 · 20 Nm · 17 rpm: Mechanical.

Sources

↑Wistar motor manufacturer site (product catalog)wistarmotor.comSeries / product line: Ref: WSM50Manufacturer-stated · Observed 2026-10-02 · Retrieved 2026-10-01 · Public web pageUsed for: 45107, 14686, 45100, 14672, 45106, 14684, 45095, 14666, 45099, 14670, 45101, 14674, 45093, 14664, 45094, 14665, 45102, 14676, 45097, 14668, 45103, 14678, 45105, 14683, 45108, 14688, 45104, 14681, 45096, 14667

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Wistar motor WSM50 · 20 Nm · 16 rpm vs Wistar motor WSM50 · 20 Nm · 17 rpm