Which tube diameters do they fit?

Motor diameter — Elero RolTop M-868 · 40 Nm · 14 rpm: 45 mm; Becker R40-17-D01: 45 mm.

What torque and speed is each rated for?

Rated torque — Elero RolTop M-868 · 40 Nm · 14 rpm: 40 Nm; Becker R40-17-D01: 40 Nm. Rated speed — Elero RolTop M-868 · 40 Nm · 14 rpm: 14 rpm; Becker R40-17-D01: 17 rpm.

What certifications are on record for each?

Marks stated by vendor — Becker R40-17-D01: CE.

Which durability indicators does each publish?

OpenAxia does not rate reliability; the published indicators are: Short-time duty (S2) — Becker R40-17-D01: 4 min. IP rating — Becker R40-17-D01: IP44.

Elero RolTop M-868 · 40 Nm · 14 rpm vs Becker R40-17-D01

Rated speed — Elero RolTop M-868 · 40 Nm · 14 rpm^{[3; 2026-09-23]}: 14 rpm.

Rated speed — Becker R40-17-D01: 17 rpm^{[2; 2026-10-03]}.

Last verified: 2026-10-09

When to choose Elero RolTop M-868 · 40 Nm · 14 rpm

For the stated diameter: 45 mm^{[4; 2026-10-09]}.
For a rated torque of 40 Nm^{[3; 2026-09-23]}.
For a rated speed of 14 rpm^{[3; 2026-09-23]}.
For the stated control protocol: Proprietary RF^{[3; 2026-10-01]}.

When to choose Becker R40-17-D01

For 230 V^{[2; 2026-10-03]} / 50 Hz^{[2; 2026-10-03]} mains.
For the stated supply type: AC mains^{[2; 2026-10-03]}.
For the stated diameter: 45 mm^{[1; 2026-10-01]}.
For a rated torque of 40 Nm^{[2; 2026-10-03]}.

Verifiable indicators

Short-time duty (S2) — Becker R40-17-D01: 4 min^{[2; 2026-10-03]}. Elero RolTop M-868 · 40 Nm · 14 rpm: Not published.

Rated life — Elero RolTop M-868 · 40 Nm · 14 rpm: Not published. Becker R40-17-D01: Not published.

Thermal protection — Elero RolTop M-868 · 40 Nm · 14 rpm: Not published. Becker R40-17-D01: Not published.

IP rating — Becker R40-17-D01: IP44^{[2; 2026-10-03]}. Elero RolTop M-868 · 40 Nm · 14 rpm: Not published.

Comparison table
Property	Elero RolTop M-868 · 40 Nm · 14 rpmElero34 252.0006	Becker R40-17-D01Becker2040 520 003 0
Series & variant axes
SeriesDiffers: RolTop M-868 vs D01	RolTop M-868	D01
Identity & lineage
Series / product line	Not published	D01^{[1; 2026-10-01]}
GTIN / EAN	Not published	4251852900079^{[1; 2026-10-01]}
Electrical
Rated voltage	Not published	230 V^{[2; 2026-10-03]}
Mains frequency	Not published	50 Hz^{[2; 2026-10-03]}
Power supply type	Not published	AC mains^{[2; 2026-10-03]}
Rated power input	Not published	260 W^{[2; 2026-10-03]}
Rated current	Not published	1.15 A^{[2; 2026-10-03]}
Cable connection	Not published	Pluggable cable^{[1; 2026-10-01]}
Drive performance
Rated torque	40 Nm^{[3; 2026-09-23]}	40 Nm^{[2; 2026-10-03]}
Rated speedDiffers: 14 rpm^{[3; 2026-09-23]} vs 17 rpm^{[2; 2026-10-03]}	14 rpm^{[3; 2026-09-23]}	17 rpm^{[2; 2026-10-03]}
Short-time duty (S2)	Not published	4 min^{[2; 2026-10-03]}
Duty type	Not published	S2^{[2; 2026-10-03]}
Dimensions & mounting
Motor diameter	45 mm^{[4; 2026-10-09]}	45 mm^{[1; 2026-10-01]}
Fits tube diameter	≥ 50 mm^{[3; 2026-10-01]}	≥ 50 mm^{[1; 2026-10-01]}
Weight	Not published	2.938 kg^{[1; 2026-10-01]}
Limits & protection
Limit setting	Electronic^{[3; 2026-10-01]}	Not published
Limit range	Not published	64 turns^{[2; 2026-10-03]}
Intermediate positions	Not published	2 positions^{[1; 2026-10-01]}
Obstacle detection	Not published	Yes^{[1; 2026-10-01]}
Soft start / soft stop	Not published	Yes^{[1; 2026-10-01]}
Control & communication
Control protocol	Proprietary RF^{[3; 2026-10-01]}	—
Control interface (as stated)	Radio^{[3; 2026-10-01]}	Not published
Radio frequency	868 MHz^{[5; 2026-09-23]}	Not published
Two-way feedback	Not published	Yes^{[1; 2026-10-01]}
Environment & protection
IP rating	Not published	IP44^{[2; 2026-10-03]}
Application
Applications	Roller shutter^{[3; 2026-10-01]}	Roller shutter^{[6; 2026-10-06]}
Compliance & declarations
Marks stated by vendor	Not published	CE^{[1; 2026-10-05]}
Appearance
Colour / finish	Not published	Weiß (RAL 9016)^{[1; 2026-10-01]}
Documents	Request datasheet	Request datasheet

— means no value: the manufacturer does not publish it, it does not apply to this product type, or there is none on record. Value states

Series

Cross-brand alternatives

Wistar motor WSME50-LED-40/13: 40 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-40/16: 40 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]}
Wistar motor WSME50-40/13: 40 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 WSME50-40/16: 40 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]}
Wistar motor WSM50-40/13: 40 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 WSM50-40/16: 40 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]}

Data gaps

Becker R40-17-D01: Overall length — Not yet collected
Becker R40-17-D01: Control protocol — Not yet collected

Questions and answers

Which tube diameters do they fit?: Motor diameter — Elero RolTop M-868 · 40 Nm · 14 rpm: 45 mm; Becker R40-17-D01: 45 mm.
What torque and speed is each rated for?: Rated torque — Elero RolTop M-868 · 40 Nm · 14 rpm: 40 Nm; Becker R40-17-D01: 40 Nm. Rated speed — Elero RolTop M-868 · 40 Nm · 14 rpm: 14 rpm; Becker R40-17-D01: 17 rpm.
What certifications are on record for each?: Marks stated by vendor — Becker R40-17-D01: CE.
Which durability indicators does each publish?: OpenAxia does not rate reliability; the published indicators are: Short-time duty (S2) — Becker R40-17-D01: 4 min. IP rating — Becker R40-17-D01: IP44.

Sources

↑Becker-Antriebe product centre (product catalog)produktcenter.becker-antriebe.comSeries / product line: Serie D01Manufacturer-stated · Observed 2026-10-01 · Retrieved 2026-10-01 · Public web pageUsed for: 13205, 13207, 13227, 13203, 13235, 13215, 13213, 13231, 13233, 13229, 48410, 13217
↑Becker-Antriebe GmbH PDF cataloguebecker-antriebe.comRated voltage: Nennspannung: 230 V/AC / 50Hz [2040 520 003 0] (p. 43)Manufacturer-stated · Observed 2026-10-03 · Retrieved 2026-10-03 · Public web pageUsed for: 47678, 47680, 47679, 47677, 47676, 47673, 47674, 47681, 47682, 47675, 47683
↑Elero manufacturer site (product catalog)elero.comRated torque: 40 NmManufacturer-stated · Observed 2026-09-23 · Retrieved 2026-09-23 · Public web pageUsed for: 1957, 1958, 27262, 27261, 27263, 27259, 27260
↑Tubular diameter derivation tdia-elero-catalog-2026-p51-roltop-melero.com[tdia-elero-catalog-2026-p51-roltop-m] Ø 45 mm from "RolTop M-868". archive: vendor/elero/aero/catalog_pdf/d3db2f5a3087a18e41569789454c321eaa3e24c3927400842437f18ecca3c54a.pdf p51. elero catalogue 2026 p51, Technical data RolTop M-868 /-K / RolTop M /-K / RolTop M-868 / RolTop M high-speed version / RolTop/D+ M-868 / RolTop/D+ M / RolTop/D+ M NHK / RolTop s_onro M-868 / RolTop s_onro M / RolTop/J M-868 / RolTop/J M: "Min. shaft diameter (mm) 50 … Diameter (mm) 45"Derived (vendor document) · Observed 2026-10-09 · Retrieved 2026-10-09 · Public web pageUsed for: 54625
↑Elero manufacturer site (product catalog)elero.commodel: RolTop M-868 RolTop M40-868Derived · Observed 2026-09-23 · Retrieved 2026-09-23 · Public web pageUsed for: 7406
↑https://produktcenter.becker-antriebe.com/Antriebe/Rollladenanwendungen/Antriebe-mit-integriertem-Funkempfaenger/R40-17-D01.htmlproduktcenter.becker-antriebe.comBecker R40-17-D01: tubular drive in produktcenter.becker-antriebe.com "Antriebe > Rollladenanwendungen" (https://produktcenter.becker-antriebe.com/Antriebe/Rollladenanwendungen/Antriebe-mit-integriertem-Funkempfaenger/R40-17-D01.html)Manufacturer-stated · Observed 2026-10-06 · Retrieved 2026-10-06 · Public web pageUsed for: 50754

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