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⚡ EN IEC 60335-2-97 • Somfy Sonesse / Glydea (<30–38 dBA) • KNX / Matter / Zigbee • TS EN ISO 354 • EN 13120
7 Engineering Spec Groups:
🪵 1. Wood Venetian Stack Chart🔥 2. Flame Retardant (IFR/FR) Standards☀️ 3. Blackout, Dimout & Screen Optical🧪 4. Finishes, Fastness & Ecology🧵 5. Curtain Groups, Weaving & Sewing⚡ 6. Motors, Automation & Acoustics🔩 7. Tracks, Rods, Tubes & Hardware🎮 8. Motor Brands & User Manual🧼 9. Curtain Care, Washing & Maintenance
⚡ INTERNATIONAL ENGINEERING & TENDER SPECIFICATION
Motorized Curtain Systems (Torque Nm / dBA), Smart Home Automation (KNX/Matter), Acoustics (ISO 354) & Child Safety
Engineering specification for EN IEC 60335-2-97 tubular and drapery track motors (Somfy Sonesse / Glydea), torque sizing, <30–38 dBA acoustic rating, KNX / DALI / Matter / Zigbee 3.0 / Dry-Contact BMS integration, ISO 354 sound absorption, and EN 13120 child safety.
- ✓Brushless DC Drapery Track Motors (35–100 kg, Touch Motion) & Tubular Motors (0.55–50 Nm, <30–38 dBA)
- ✓Native BMS & Smart Home integration: KNX, DALI, RS485, Dry-Contact, Matter over Thread, Zigbee 3.0 & RTS/io
- ✓ISO 354 Acoustic Sound Absorption (αw 0.55–0.85, Class A/B) & Mandatory EN 13120 Child Safety Compliance
VERIFIED ENGINEERING DATA TABLE (ISO / EN / DIN / NFPA)
EN IEC 60335-2-97 • Somfy Sonesse / Glydea (<30–
Table 6 — Motorized Curtain Systems, Track & Tubular Motors, Torque (Nm) Calculation, Acoustics (dBA), Smart Home Protocols & Child Safety Specification
| Motor & Automation Group | Torque (Nm) / Load Capacity | Acoustic Noise Level (dBA) | Power Supply & Linear Speed | Smart Home & BMS Protocol | Electrical / Mechanical & Child Safety Standard | Engineering Formula & Application Feature |
|---|---|---|---|---|---|---|
| Ultra-Quiet Motorized Drapery Track (Standard Residential/Hotel) | 0.6 Nm — Max 35 kg Curtain Load (Up to 10 m straight track) | ≤ 38 dBA (Silent bedroom and hotel guestroom standard) | 230V AC 50Hz or 12V Li-ion Rechargeable Battery (1–2 charges/year) • 12–16 cm/s | RF 433.42 MHz (RTS) / 868 MHz (io), Zigbee 3.0, Matter over Thread, Wi-Fi | EN IEC 60335-2-97 • IP30 Indoor • CE & RoHS | Touch Motion (gently pull fabric 5 cm to trigger motor), Soft Start / Soft Stop, manual override during power outage |
| Heavy-Duty Architectural & Stage Drapery Track Motor | 1.0 – 1.2 Nm — Max 60 kg (Up to 100–120 kg in Tandem dual-motor; 12–15 m track) | < 30 – 35 dBA (Whisper-quiet brushless DC motor) | 230V AC 50Hz or 24V DC • Adjustable speed: 12.5 – 20 cm/s | KNX, DALI, RS485, Dry-Contact, Zigbee 3.0, Apple Home / Google / Alexa | EN IEC 60335-2-97 • Electromagnetic brake & overload protection | Deduct 15%–20% load capacity per 90° or curved bend for friction; mandatory for double-height atriums & auditoriums |
| Compact Tubular Motor — Ø 28mm / 30mm / 35mm | 0.55 Nm (≤ 5 m²) • 1.1 Nm (≤ 10 m²) • 2.0 Nm (≤ 18 m² roller/zebra/pleated) | 30 – 38 dBA (Sonesse / Silent Architectural Series) | 24V DC, 12V Built-in Li-ion WireFree (Zero wall wiring) or Solar Panel • 10–28 rpm | Zigbee 3.0 (0%–100% bi-directional position feedback), Thread, RF Remote | EN IEC 60335-2-97 • Electronic upper/lower limits & obstacle detection | Torque Formula: T (Nm) = [Fabric Weight (kg) + Bottom Bar (kg)] × 9.81 × Tube Radius r (m) × 1.35 (Safety Factor) |
| High-Torque Tubular Motor — Ø 40mm / 45mm / 50mm+ | 4 Nm (≤ 12 kg) • 6 Nm (≤ 18 kg) • 10–15 Nm (≤ 30–45 kg heavy 50mm wood blinds & facade screens) | 38 – 44 dBA | 230V AC 50Hz • 12 – 17 rpm • Thermal cut-off protection | RTS / io-homecontrol, KNX, Wind (Anemometer) & Sun (Lux) Sensor Automation | Indoor: IP30–IP44 • Exterior Zip Screen & Winter Garden: IP44 – IP55 weatherproof | Synchronizes both slat tilt and full lift on heavy 50mm Wood (White, Walnut, Mahogany, Oak, Grey, Black) blinds (>4.8 m²) with millimetric precision |
| Child Safety & Mechanical Control Standard | Breakaway chain/cord connector: releases automatically at ≤ 6 kg load | Silent geared clutch mechanism | Manual Bead Chain, Spring-Assist, or 100% Cordless / Motorized | Mechanical safety compliance | TS EN 13120:2009+A1:2014 + EN 16433 + EN 16434 (EU Decision 2011/477/EU) | For 0–42 month child safety, all chain loops must be anchored ≥ 150 cm above floor via wall tension pulley or replaced by cordless motorization |
⚡ Tubular & Track Motor Torque (Nm) Engineering Formula
Tubular Torque Formula: T (Nm) = [Fabric Mass (kg) + Bottom Bar (kg)] × 9.81 × Tube Radius r (m) × 1.35 (Safety Factor).
Track Bend Derating: Deduct 15%–20% load capacity for each 90° radius bend on motorized drapery tracks.
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EN IEC 60335-2-97 • Somfy Sonesse / Glydea (<30–38 dBA) • KNX / Matter / Zigbee • TS EN ISO 354 • EN 13120
❓ Frequently Asked Engineering & Tender Questions
❓ How quiet are modern architectural curtain motors?
Whisper-quiet brushless DC motors (such as Somfy Sonesse Ultra and Glydea Ultra) operate between 30 dBA and 38 dBA at 1 meter distance, making them virtually inaudible in bedrooms and boardrooms.
❓ Can motorized blinds be installed without hardwired AC power?
Yes. WireFree rechargeable Lithium-Ion motors install with zero electrical wiring and operate 6 to 9 months per charge under normal daily cycling.