Which tube diameters do they fit?

Motor diameter — Elero RolMotion/D+ M25: 45 mm; Elero RolMotion/D+ M20: 45 mm.

What torque and speed is each rated for?

Rated torque — Elero RolMotion/D+ M25: 25 Nm; Elero RolMotion/D+ M20: 20 Nm. Rated speed — Elero RolMotion/D+ M25: 14 rpm; Elero RolMotion/D+ M20: 14 rpm.

What protocols and control options does each support?

Limit setting — Elero RolMotion/D+ M25: Electronic; Elero RolMotion/D+ M20: Electronic.

Elero RolMotion/D+: M25 vs M20 Compared

Rated torque — Elero RolMotion/D+ M25: 25 Nm^{[1; 2026-09-23]}.

Rated torque — Elero RolMotion/D+ M20: 20 Nm^{[1; 2026-09-23]}.

Last verified: 2026-10-09

When to choose Elero RolMotion/D+ M25

For the stated diameter: 45 mm^{[2; 2026-10-09]}.
For a rated torque of 25 Nm^{[1; 2026-09-23]}.
For a rated speed of 14 rpm^{[1; 2026-09-23]}.
For the stated limit type: Electronic^{[1; 2026-10-01]}.

When to choose Elero RolMotion/D+ M20

For the stated diameter: 45 mm^{[2; 2026-10-09]}.
For a rated torque of 20 Nm^{[1; 2026-09-23]}.
For a rated speed of 14 rpm^{[1; 2026-09-23]}.
For the stated limit type: Electronic^{[1; 2026-10-01]}.

Verifiable indicators

Short-time duty (S2) — Elero RolMotion/D+ M25: Not published. Elero RolMotion/D+ M20: Not published.

Rated life — Elero RolMotion/D+ M25: Not published. Elero RolMotion/D+ M20: Not published.

Thermal protection — Elero RolMotion/D+ M25: Not published. Elero RolMotion/D+ M20: Not published.

IP rating — Elero RolMotion/D+ M25: Not published. Elero RolMotion/D+ M20: Not published.

Comparison table
Property	Elero RolMotion/D+ M25Elero44 043.0001	Elero RolMotion/D+ M20Elero44 033.0001
Series & variant axes
Series	RolMotion /D+ M RolMotion/D+	RolMotion /D+ M RolMotion/D+
TorqueDiffers: 25 Nm vs 20 Nm	25 Nm	20 Nm
Rated speed	14 rpm	14 rpm
Drive performance
Rated torqueDiffers: 25 Nm^{[1; 2026-09-23]} vs 20 Nm^{[1; 2026-09-23]}	25 Nm^{[1; 2026-09-23]}	20 Nm^{[1; 2026-09-23]}
Rated speed	14 rpm^{[1; 2026-09-23]}	14 rpm^{[1; 2026-09-23]}
Speed range (min)	5 rpm^{[1; 2026-10-01]}	5 rpm^{[1; 2026-10-01]}
Dimensions & mounting
Motor diameter	45 mm^{[2; 2026-10-09]}	45 mm^{[2; 2026-10-09]}
Fits tube diameter	≥ 50 mm^{[1; 2026-10-01]}	≥ 50 mm^{[1; 2026-10-01]}
Limits & protection
Limit setting	Electronic^{[1; 2026-10-01]}	Electronic^{[1; 2026-10-01]}
Control & communication
Control interface (as stated)	Hardwired^{[1; 2026-10-01]}	Hardwired^{[1; 2026-10-01]}
Application
Applications	Roller shutter^{[1; 2026-10-01]}	Roller shutter^{[1; 2026-10-01]}
View all 4 variants
Documents	Request datasheet	Request datasheet

Same-series variants

Variant axis	Elero RolMotion/D+ M25	Elero RolMotion/D+ M20
Torque	25 Nm^{[Elero manufacturer site (product catalog); 2026-09-23]}	20 Nm^{[Elero manufacturer site (product catalog); 2026-09-23]}

Cross-brand alternatives

Wistar motor WSME50-LED-20/13: 20 Nm^{[Wistar motor manufacturer site (product catalog); 2026-10-01]}, Ø 45 mm^{[Wistar motor manufacturer site (product catalog); 2026-10-01]}, 230 V^{[Wistar motor manufacturer site (product catalog); 2026-10-01]}
Wistar motor WSME50-LED-20/17: 20 Nm^{[Wistar motor manufacturer site (product catalog); 2026-10-01]}, Ø 45 mm^{[Wistar motor manufacturer site (product catalog); 2026-10-01]}, 230 V^{[Wistar motor manufacturer site (product catalog); 2026-10-01]}
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]}
Wistar motor WSME50-LED-20/21: 20 Nm^{[Wistar motor manufacturer site (product catalog); 2026-10-01]}, Ø 45 mm^{[Wistar motor manufacturer site (product catalog); 2026-10-01]}, 120 V^{[Wistar motor manufacturer site (product catalog); 2026-10-01]}
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]}

Questions and answers

Which tube diameters do they fit?: Motor diameter — Elero RolMotion/D+ M25: 45 mm; Elero RolMotion/D+ M20: 45 mm.
What torque and speed is each rated for?: Rated torque — Elero RolMotion/D+ M25: 25 Nm; Elero RolMotion/D+ M20: 20 Nm. Rated speed — Elero RolMotion/D+ M25: 14 rpm; Elero RolMotion/D+ M20: 14 rpm.
What protocols and control options does each support?: Limit setting — Elero RolMotion/D+ M25: Electronic; Elero RolMotion/D+ M20: Electronic.

Sources

↑Elero manufacturer site (product catalog)elero.comRated torque: 25 NmManufacturer-stated · Observed 2026-09-23 · Retrieved 2026-09-23 · Public web pageUsed for: 1691, 1689, 1692, 1690, 26237, 26232, 26236, 26231, 26235, 26230, 26233, 26228, 26234, 26229
↑Tubular diameter derivation tdia-elero-catalog-2026-p45-rolmotion-melero.com[tdia-elero-catalog-2026-p45-rolmotion-m] Ø 45 mm from "RolMotion /D+ M RolMotion/D+". archive: vendor/elero/aero/catalog_pdf/d3db2f5a3087a18e41569789454c321eaa3e24c3927400842437f18ecca3c54a.pdf p45. elero catalogue 2026 p45, Technical data RolMotion M-868 / RolMotion M / RolMotion/D+ M-868 / RolMotion/D+ M: "Min. shaft diameter (mm) 50 … Diameter (mm) 45"Derived (vendor document) · Observed 2026-10-09 · Retrieved 2026-10-09 · Public web pageUsed for: 54557, 54556

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Elero RolMotion/D+ M25 vs Elero RolMotion/D+ M20