The SICK ISD400-7221 is an advanced Category 4, PL e safety door switch designed for mission-critical machine guarding applications. This dual-channel coded magnetic switch provides ultimate protection with its 2 N/O safety contacts configuration.
Key Features & Technical Specifications
1. Superior Safety Performance
Safety Category: 4 (EN ISO 13849-1)
Performance Level: PL e (highest level)
Contact Configuration: 2 N/O (Normally Open)
Switching Capacity: 6A (AC-15)
Actuation Principle: Secure magnetic coding (anti-tamper)
2. Industrial-Grade Construction
Housing Material: Reinforced polyamide (PA6-GF30)
Protection Rating: IP67 (dust/water proof)
Operating Temperature: -25°C to +70°C
Mechanical Life: >1,000,000 operations
Impact Resistance: 30g (IEC 60068-2-27)
3. Advanced Security Technology
Dual N/O contacts for redundant safety circuits
Unique magnetic coding prevents defeat attempts
Positive-guided contacts (EN 60947-5-1)
Multi-status LED indicator (green/red)
Tool-less actuator adjustment
Technical Data Summary
Parameter Specification
Safety Standard EN ISO 13849-1 Cat. 4
Performance Level PL e
Contact Rating 6A, 250V AC
Actuating Distance ≤25mm
Protection Class IP67
Connection Type Screw terminals (2.5mm²)
Typical Applications
✔ Critical Industrial Machinery
Metal forming presses
Plastic injection machines
Die casting equipment
✔ Automated Manufacturing
Robotic cell safety doors
Automated assembly stations
✔ Packaging Systems
High-speed wrapping machines
Palletizing systems
✔ Hazardous Environments
Industrial furnaces
Chemical processing equipment
Competitive Advantages
✅ Dual N/O contacts for fail-safe operation
✅ Military-grade security with unique magnetic coding
✅ Ultra-durable construction for 24/7 operation
✅ Instant visual status confirmation
✅ Easy installation with flexible mounting options
Certifications & Compliance
CE Marking (Machinery Directive)