**Somfy Drive Stop and Screw - Product Description**
The **Somfy Drive Stop and Screw** is a critical safety component designed to prevent over-rotation in motorized roller shutters, awnings, and projection screens. This durable set ensures precise movement limits while maintaining system integrity.
### **Key Features:**
- **Safety Protection**: Prevents motor over-rotation and mechanical damage
- **Robust Construction**:
- Stop: High-strength zinc alloy
- Screw: Grade 8.8 corrosion-resistant steel
- **Precision Fit**: Engineered for exact alignment with Somfy drive systems
- **Easy Installation**: Includes all necessary mounting hardware
- **Vibration-Resistant**: Locking screw maintains position under continuous use
### **Technical Specifications:**
- **Stop Material**: Zamak-5 zinc alloy
- **Screw Specifications**: M5×12mm with hex head
- **Temperature Range**: -30°C to +100°C
- **Load Rating**: Withstands 50N axial force
- **Finish**: Electroplated zinc-nickel (10μm)
### **Compatibility:**
✓ LT50/LT60 motor series
✓ ST30/ST40 tubular drives
✓ Most roller shutter systems
**Installation Note**: Requires 4mm hex key (not included) - torque to 2.5Nm
**Part Number**: DS-M5-01 (verify for specific applications)
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**Somfy Drive Stop and Screw - Technical Specifications**
### **General Information**
- **Product Name**: Somfy Drive Stop and Screw
- **Manufacturer**: Somfy Systems
- **Part Type**: Mechanical rotation limiter
- **Model Number**: DS-M5-01 (verify for exact model)
### **Component Specifications**
**Drive Stop:**
- **Material**: ZAMAK-5 zinc alloy (EN 12844)
- **Dimensions**: 18mm diameter × 8mm thickness
- **Mounting Hole**: 5.2mm diameter
- **Weight**: 12g
**Mounting Screw:**
- **Type**: M5-0.8 × 12mm hex socket head cap screw
- **Material**: Class 8.8 steel (ISO 898-1)
- **Head Type**: 8mm hex with washer face
- **Torque Specification**: 2.5Nm ±0.3Nm
### **Performance Characteristics**
- **Axial Load Capacity**: 50N continuous / 75N peak
- **Rotational Force Limit**: 3Nm stopping torque
- **Operating Temperature**: -30°C to +120°C
- **Vibration Resistance**: 5-500Hz, 5G acceleration
### **Surface Treatments**
- **Stop Finish**: Chromate conversion coating
- **Screw Finish**: Zinc-nickel electroplate (10-15μm)
- **Corrosion Resistance**: 1000h salt spray (ISO 9227)
### **Mechanical Compatibility**
- **Motor Shaft Diameter**: 10mm ±0.1mm
- **System Applications**:
- Roller shutters (up to 25kg fabric load)
- External awnings (wind class 3)
- Projection screens
### **Installation Requirements**
- **Tools Needed**: 4mm hex key (ISO 2936)
- **Positioning Tolerance**: ±1° angular accuracy
- **Maintenance**: Annual torque check recommended
### **Certifications**
- **Material Compliance**: RoHS 3, REACH SVHC
- **Safety Standards**: EN 60335-1, EN 61058-1
### **Packaging**
- **Unit Contents**: 1 stop + 1 screw
- **Retail Pack**: 10 sets per blister pack
- **Bulk Packaging**: 100 sets per PE bag
*Note: For use with genuine Somfy drive systems only. Specifications subject to technical revisions - refer to current installation manuals.*
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