What supply voltage and frequency does each use?

Rated voltage — Nice Era Inn Smart E SMART SI 620 DC: 24 V. Mains frequency — Nice Era Inn Smart E SMART SI 620 AC: 50 Hz, 60 Hz. Power supply type — Nice Era Inn Smart E SMART SI 620 AC: AC mains; Nice Era Inn Smart E SMART SI 620 DC: DC.

Which tube diameters do they fit?

Motor diameter — Nice Era Inn Smart E SMART SI 620 AC: 35 mm; Nice Era Inn Smart E SMART SI 620 DC: 35 mm.

What torque and speed is each rated for?

Rated torque — Nice Era Inn Smart E SMART SI 620 AC: 6 Nm; Nice Era Inn Smart E SMART SI 620 DC: 6 Nm. Rated speed — Nice Era Inn Smart E SMART SI 620 AC: 20 rpm; Nice Era Inn Smart E SMART SI 620 DC: 20 rpm. Max load — Nice Era Inn Smart E SMART SI 620 AC: 22 kg; Nice Era Inn Smart E SMART SI 620 DC: 22 kg.

What protocols and control options does each support?

Limit setting — Nice Era Inn Smart E SMART SI 620 AC: Electronic; Nice Era Inn Smart E SMART SI 620 DC: Electronic.

Nice Era Inn Smart E SMART SI 620: AC vs DC Compared

Rated current — Nice Era Inn Smart E SMART SI 620 AC: 0.8 A^{[1; 2026-10-01]}; Nice Era Inn Smart E SMART SI 620 DC: 2 A^{[1; 2026-10-01]}.

Overall length — Nice Era Inn Smart E SMART SI 620 AC: 744 mm^{[1; 2026-10-01]}; Nice Era Inn Smart E SMART SI 620 DC: 472 mm^{[1; 2026-10-01]}.

Weight — Nice Era Inn Smart E SMART SI 620 AC: 1.5 kg^{[1; 2026-10-01]}; Nice Era Inn Smart E SMART SI 620 DC: 1.1 kg^{[1; 2026-10-01]}.

Last verified: 2026-11-02

When to choose Nice Era Inn Smart E SMART SI 620 AC

For a mains frequency of 50 Hz^{[1; 2026-10-01]}, 60 Hz^{[1; 2026-10-01]}.
For the stated supply type: AC mains^{[1; 2026-10-01]}.
For the stated diameter: 35 mm^{[2; 2026-10-09]}.
For a rated torque of 6 Nm^{[1; 2026-10-01]}.

When to choose Nice Era Inn Smart E SMART SI 620 DC

For a supply rated 24 V^{[1; 2026-10-01]}.
For the stated supply type: DC^{[1; 2026-10-01]}.
For the stated diameter: 35 mm^{[2; 2026-10-09]}.
For a rated torque of 6 Nm^{[1; 2026-10-01]}.

Verifiable indicators

Short-time duty (S2) — Nice Era Inn Smart E SMART SI 620 AC: 6 min^{[1; 2026-10-01]}; Nice Era Inn Smart E SMART SI 620 DC: 6 min^{[1; 2026-10-01]}.

Rated life — Nice Era Inn Smart E SMART SI 620 AC: Not published. Nice Era Inn Smart E SMART SI 620 DC: Not published.

Thermal protection — Nice Era Inn Smart E SMART SI 620 AC: Not published. Nice Era Inn Smart E SMART SI 620 DC: Not published.

IP rating — Nice Era Inn Smart E SMART SI 620 AC: IP30^{[1; 2026-10-01]}; Nice Era Inn Smart E SMART SI 620 DC: IP30^{[1; 2026-10-01]}.

Comparison table
Property	Nice Era Inn Smart E SMART SI 620 ACNiceE SMART SI 620 AC	Nice Era Inn Smart E SMART SI 620 DCNiceE SMART SI 620 DC
Series & variant axes
Series	Era Inn Smart S	Era Inn Smart S
Torque	6 Nm	6 Nm
Rated speed	20 rpm	20 rpm
Power supplyDiffers: AC mains vs DC	AC mains	DC
Electrical
Rated voltage	Not published	24 V^{[1; 2026-10-01]}
Supply voltage (min)	100 V^{[1; 2026-10-01]}	Not published
Supply voltage (max)	240 V^{[1; 2026-10-01]}	Not published
Mains frequency	50 Hz^{[1; 2026-10-01]}, 60 Hz^{[1; 2026-10-01]}	Not published
Power supply typeDiffers: AC mains^{[1; 2026-10-01]} vs DC^{[1; 2026-10-01]}	AC mains^{[1; 2026-10-01]}	DC^{[1; 2026-10-01]}
Rated power input	50 W^{[1; 2026-10-01]}	50 W^{[1; 2026-10-01]}
Standby power	< 0.5 W^{[1; 2026-10-01]}	< 0.5 W^{[1; 2026-10-01]}
Rated currentDiffers: 0.8 A^{[1; 2026-10-01]} vs 2 A^{[1; 2026-10-01]}	0.8 A^{[1; 2026-10-01]}	2 A^{[1; 2026-10-01]}
Drive performance
Rated torque	6 Nm^{[1; 2026-10-01]}	6 Nm^{[1; 2026-10-01]}
Rated speed	20 rpm^{[1; 2026-10-01]}	20 rpm^{[1; 2026-10-01]}
Speed range (min)	10 rpm^{[1; 2026-10-01]}	10 rpm^{[1; 2026-10-01]}
Speed range (max)	32 rpm^{[1; 2026-10-01]}	32 rpm^{[1; 2026-10-01]}
Short-time duty (S2)	6 min^{[1; 2026-10-01]}	6 min^{[1; 2026-10-01]}
Max load	22 kg^{[1; 2026-10-01]}	22 kg^{[1; 2026-10-01]}
Dimensions & mounting
Motor diameter	35 mm^{[2; 2026-10-09]}	35 mm^{[2; 2026-10-09]}
Fits tube diameter	≥ 35 mm^{[3; 2026-10-01]}	≥ 35 mm^{[3; 2026-10-01]}
Overall lengthDiffers: 744 mm^{[1; 2026-10-01]} vs 472 mm^{[1; 2026-10-01]}	744 mm^{[1; 2026-10-01]}	472 mm^{[1; 2026-10-01]}
WeightDiffers: 1.5 kg^{[1; 2026-10-01]} vs 1.1 kg^{[1; 2026-10-01]}	1.5 kg^{[1; 2026-10-01]}	1.1 kg^{[1; 2026-10-01]}
Limits & protection
Limit setting	Electronic^{[3; 2026-10-01]}	Electronic^{[3; 2026-10-01]}
Limit range	< 150 turns^{[1; 2026-10-01]}	< 150 turns^{[1; 2026-10-01]}
Control & communication
Control interface (as stated)	Hardwired^{[3; 2026-10-01]}	Hardwired^{[3; 2026-10-01]}
Environment & protection
IP rating	IP30^{[1; 2026-10-01]}	IP30^{[1; 2026-10-01]}
Operating temp. (min)	0 °C^{[1; 2026-10-01]}	0 °C^{[1; 2026-10-01]}
Operating temp. (max)	60 °C^{[1; 2026-10-01]}	60 °C^{[1; 2026-10-01]}
Noise level	35 dB(A)^{[1; 2026-11-02]}	35 dB(A)^{[1; 2026-11-02]}
Application
Applications	Roller blind^{[3; 2026-10-05]}, Screen^{[3; 2026-10-01]}	Roller blind^{[3; 2026-10-05]}, Screen^{[3; 2026-10-01]}
View all 6 variants
Documents	Request datasheet	Request datasheet

Relations and interchangeability

Nice Era Inn Smart E SMART SI 620 AC → Nice Era Inn Smart E SMART SI 620 DC

Not directly interchangeable

Same product type (tubular motor)
Used for Roller blind, Screen (same)
Ø35 mm (same class)
Torque 6 Nm (same)
Speed 20 rpm (same)
Limits: Electronic (same)
Length 472 mm
Protection IP30
Power supply DC vs AC mains
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

Nice Era Inn Smart E SMART SI 620 DC → Nice Era Inn Smart E SMART SI 620 AC

Not directly interchangeable

Same product type (tubular motor)
Used for Roller blind, Screen (same)
Ø35 mm (same class)
Torque 6 Nm (same)
Speed 20 rpm (same)
Limits: Electronic (same)
Protection IP30
Power supply AC mains vs DC
Control system not confirmed
272 mm longer: check the space between brackets

Required changes / checks: Control system not confirmed; 272 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

Same-series variants

Variant axis	Nice Era Inn Smart E SMART SI 620 AC	Nice Era Inn Smart E SMART SI 620 DC
Power supply	AC mains^{[Nice S.p.A. PDF catalogue nice_sun_shading_solutions_catalogue_en.pdf; 2026-10-01]}	DC^{[Nice S.p.A. PDF catalogue nice_sun_shading_solutions_catalogue_en.pdf; 2026-10-01]}

Cross-brand alternatives

A-OK AM35 Wide Voltage DC Input Electronic Limit Motor: 6 Nm^{[A-OK Motor manufacturer site (product catalog); 2026-09-30]}, Ø 35 mm^{[A-OK Motor manufacturer site (product catalog); 2026-10-05]}
Wistar motor WSS40S-6/19: 6 Nm^{[Wistar motor manufacturer site (product catalog); 2026-10-01]}, Ø 35 mm^{[Wistar motor manufacturer site (product catalog); 2026-10-01]}, 230 V^{[Wistar motor manufacturer site (product catalog); 2026-10-01]}
Wistar motor WSS40S-6/23: 6 Nm^{[Wistar motor manufacturer site (product catalog); 2026-10-01]}, Ø 35 mm^{[Wistar motor manufacturer site (product catalog); 2026-10-01]}, 230 V^{[Wistar motor manufacturer site (product catalog); 2026-10-01]}
Wistar motor WSEB40-6/19: 6 Nm^{[Wistar motor manufacturer site (product catalog); 2026-10-01]}, Ø 35 mm^{[Wistar motor manufacturer site (product catalog); 2026-10-01]}, 230 V^{[Wistar motor manufacturer site (product catalog); 2026-10-01]}
Wistar motor WSEB40-6/28: 6 Nm^{[Wistar motor manufacturer site (product catalog); 2026-10-01]}, Ø 35 mm^{[Wistar motor manufacturer site (product catalog); 2026-10-01]}, 230 V^{[Wistar motor manufacturer site (product catalog); 2026-10-01]}
Becker P6-20-C28: 6 Nm^{[Becker-Antriebe product centre (product catalog); 2026-10-01]}, Ø 35 mm^{[Becker-Antriebe product centre (product catalog); 2026-10-01]}, 12 V^{[Becker-Antriebe product centre (product catalog); 2026-10-01]}

Questions and answers

What supply voltage and frequency does each use?: Rated voltage — Nice Era Inn Smart E SMART SI 620 DC: 24 V. Mains frequency — Nice Era Inn Smart E SMART SI 620 AC: 50 Hz, 60 Hz. Power supply type — Nice Era Inn Smart E SMART SI 620 AC: AC mains; Nice Era Inn Smart E SMART SI 620 DC: DC.
Which tube diameters do they fit?: Motor diameter — Nice Era Inn Smart E SMART SI 620 AC: 35 mm; Nice Era Inn Smart E SMART SI 620 DC: 35 mm.
What torque and speed is each rated for?: Rated torque — Nice Era Inn Smart E SMART SI 620 AC: 6 Nm; Nice Era Inn Smart E SMART SI 620 DC: 6 Nm. Rated speed — Nice Era Inn Smart E SMART SI 620 AC: 20 rpm; Nice Era Inn Smart E SMART SI 620 DC: 20 rpm. Max load — Nice Era Inn Smart E SMART SI 620 AC: 22 kg; Nice Era Inn Smart E SMART SI 620 DC: 22 kg.
What protocols and control options does each support?: Limit setting — Nice Era Inn Smart E SMART SI 620 AC: Electronic; Nice Era Inn Smart E SMART SI 620 DC: Electronic.

Sources

↑Nice S.p.A. PDF catalogueniceforyou.comRated voltage: Power supply (VDC): 24 [E SMART SI 620 DC] (p. 92)Manufacturer-stated · Observed 2026-10-01 · Retrieved 2026-10-01 · Public web pageUsed for: 38634, 38574, 38575, 38577, 38578, 38576, 38635, 38580, 38637, 38581, 38638, 38579, 38636, 38582, 38639, 38583, 38640, 38585, 38642, 38584, 38641, 38588, 38645, 38589, 38646, 38590, 38647, 38591, 38648, 38587, 38644, 38594, 38651, 38592, 38649, 38593, 38650, 68006, 68009
↑Tubular diameter derivation tdia-nice-era-size-v1niceforyou.com[tdia-nice-era-size-v1] Ø 35 mm from "E SMART SI 620". Nice Era Star T manual §3.1: motors that are size "S" (Ø = 35 mm) … size "M" (Ø = 45 mm) … size "L" (Ø = 58 mm). Nice Sun Shading catalogue 2026 p70: "ERA INN S Ø 35 mm", "ERA INN M Ø 45 mm".Derived (model name) · Observed 2026-10-09 · Retrieved 2026-10-09 · Public web pageUsed for: 54460, 54463
↑Elero manufacturer site (product catalog)elero.comFits tube (min.): Shaft size (mm) from 35Manufacturer-stated · Observed 2026-10-01 · Retrieved 2026-09-23 · Public web pageUsed for: 45962, 45980, 45961, 45979, 45959, 45977, 48924, 45960, 48930, 45978

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Nice Era Inn Smart E SMART SI 620 AC vs Nice Era Inn Smart E SMART SI 620 DC