Which tube diameters do they fit?

Motor diameter — Elero VariEco M NHK · 30 Nm · 14 rpm: 45 mm; Elero VariEco M NHK · 20 Nm · 14 rpm: 45 mm.

What torque and speed is each rated for?

Rated torque — Elero VariEco M NHK · 30 Nm · 14 rpm: 30 Nm; Elero VariEco M NHK · 20 Nm · 14 rpm: 20 Nm. Rated speed — Elero VariEco M NHK · 30 Nm · 14 rpm: 14 rpm; Elero VariEco M NHK · 20 Nm · 14 rpm: 14 rpm.

What protocols and control options does each support?

Limit setting — Elero VariEco M NHK · 30 Nm · 14 rpm: Mechanical; Elero VariEco M NHK · 20 Nm · 14 rpm: Mechanical.

Elero VariEco M NHK: 30 Nm · 14 rpm vs 20 Nm

Rated torque — Elero VariEco M NHK · 30 Nm^{[1; 2026-09-23]} · 14 rpm: 30 Nm.

Rated torque — Elero VariEco M NHK · 20 Nm^{[1; 2026-09-23]} · 14 rpm: 20 Nm.

Last verified: 2026-10-09

When to choose Elero VariEco M NHK · 30 Nm · 14 rpm

For the stated diameter: 45 mm^{[2; 2026-10-09]}.
For a rated torque of 30 Nm^{[1; 2026-09-23]}.
For a rated speed of 14 rpm^{[1; 2026-09-23]}.
For the stated limit type: Mechanical^{[1; 2026-10-01]}.

When to choose Elero VariEco M NHK · 20 Nm · 14 rpm

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: Mechanical^{[1; 2026-10-01]}.

Verifiable indicators

Short-time duty (S2) — Elero VariEco M NHK · 30 Nm · 14 rpm: Not published. Elero VariEco M NHK · 20 Nm · 14 rpm: Not published.

Rated life — Elero VariEco M NHK · 30 Nm · 14 rpm: Not published. Elero VariEco M NHK · 20 Nm · 14 rpm: Not published.

Thermal protection — Elero VariEco M NHK · 30 Nm · 14 rpm: Not published. Elero VariEco M NHK · 20 Nm · 14 rpm: Not published.

IP rating — Elero VariEco M NHK · 30 Nm · 14 rpm: Not published. Elero VariEco M NHK · 20 Nm · 14 rpm: Not published.

Comparison table
Property	Elero VariEco M NHK · 30 Nm · 14 rpmElero34 843.0001	Elero VariEco M NHK · 20 Nm · 14 rpmElero34 833.0001
Series & variant axes
Series	VariEco M NHK	VariEco M NHK
TorqueDiffers: 30 Nm vs 20 Nm	30 Nm	20 Nm
Rated speed	14 rpm	14 rpm
Drive performance
Rated torqueDiffers: 30 Nm^{[1; 2026-09-23]} vs 20 Nm^{[1; 2026-09-23]}	30 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]}
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	Mechanical^{[1; 2026-10-01]}	Mechanical^{[1; 2026-10-01]}
Control & communication
Control interface (as stated)	Hardwired^{[1; 2026-10-01]}	Hardwired^{[1; 2026-10-01]}
Application
Applications	Awning^{[1; 2026-10-01]}, Roller blind^{[1; 2026-10-05]}, Roller shutter^{[1; 2026-10-01]}, Screen^{[1; 2026-10-01]}	Awning^{[1; 2026-10-01]}, Roller blind^{[1; 2026-10-05]}, Roller shutter^{[1; 2026-10-01]}, Screen^{[1; 2026-10-01]}
View all 4 variants
Documents	Request datasheet	Request datasheet

Same-series variants

Variant axis	Elero VariEco M NHK · 30 Nm · 14 rpm	Elero VariEco M NHK · 20 Nm · 14 rpm
Torque	30 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 VariEco M NHK · 30 Nm · 14 rpm: 45 mm; Elero VariEco M NHK · 20 Nm · 14 rpm: 45 mm.
What torque and speed is each rated for?: Rated torque — Elero VariEco M NHK · 30 Nm · 14 rpm: 30 Nm; Elero VariEco M NHK · 20 Nm · 14 rpm: 20 Nm. Rated speed — Elero VariEco M NHK · 30 Nm · 14 rpm: 14 rpm; Elero VariEco M NHK · 20 Nm · 14 rpm: 14 rpm.
What protocols and control options does each support?: Limit setting — Elero VariEco M NHK · 30 Nm · 14 rpm: Mechanical; Elero VariEco M NHK · 20 Nm · 14 rpm: Mechanical.

Sources

↑Elero manufacturer site (product catalog)elero.comRated torque: 30 NmManufacturer-stated · Observed 2026-09-23 · Retrieved 2026-09-23 · Public web pageUsed for: 1843, 1841, 1844, 1842, 26959, 26953, 26958, 26952, 26954, 26948, 26956, 49009, 26955, 26957, 26950, 49008, 26949, 26951
↑Tubular diameter derivation tdia-elero-catalog-2026-p67-varieco-melero.com[tdia-elero-catalog-2026-p67-varieco-m] Ø 45 mm from "VariEco M NHK". archive: vendor/elero/aero/catalog_pdf/d3db2f5a3087a18e41569789454c321eaa3e24c3927400842437f18ecca3c54a.pdf p67. elero catalogue 2026 p67, Technical data VariEco M / VariEco M high-speed version / VariEco+ M / VariEco+ M high-speed version / VariEco M NHK: "Min. shaft diameter (mm) 50 … Diameter (mm) 45"Derived (vendor document) · Observed 2026-10-09 · Retrieved 2026-10-09 · Public web pageUsed for: 54574, 54573

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Elero VariEco M NHK · 30 Nm · 14 rpm vs Elero VariEco M NHK · 20 Nm · 14 rpm