The SICK ISD400-6121 is a Category 4, PL e safety door switch designed for tamper-resistant machine guarding applications. This coded magnetic switch provides reliable access monitoring for industrial safety systems.
Key Features & Technical Specifications
1. Safety Performance
Safety Category: 4 (EN ISO 13849-1)
Performance Level: PL e
Contact Configuration: 1 N/O + 1 N/C
Switching Capacity: 6A (AC-15)
Actuation Principle: Secure magnetic coding
2. Robust Industrial Design
Housing Material: Reinforced polyamide (PA6)
Protection Rating: IP67
Operating Temperature: -25°C to +70°C
Mechanical Life: >1,000,000 operations
3. Security Features
Unique magnetic coding prevents tampering
Positive-guided contacts (EN 60947-5-1)
Integrated status LED for visual confirmation
Anti-tamper mounting design
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
Typical Applications
✔ Machine Tool Protection
Press brake safety doors
CNC machine guards
✔ Industrial Automation
Robotic cell access points
Assembly line safety gates
✔ Packaging Machinery
Wrapping machine doors
Palletizer guards
✔ Special Applications
Test chamber access control
Hazardous area monitoring
Competitive Advantages
✅ Secure magnetic coding prevents bypass attempts
✅ Mixed contact configuration (1N/O+1N/C) for flexible safety circuits
✅ Durable construction withstands harsh environments
✅ Clear visual status indication
✅ Easy installation with multiple mounting options