AZM150SK-02/11RI-B6L Dual Contact Redundant Interlock SS Bayonet Lock IP67 Industrial Guard

1. ​Product Overview​

The Schmersal AZM150SK-02/11RI-B6L is an advanced safety relay engineered for critical machine control applications requiring monitored reset functionality with visual status indication. Designed to ​ISO 13849-1 PL e (Category 4)​​ and ​IEC 62061 SIL 3​ standards, this module features ​dual-channel monitoring (02)​​ and ​monitored reset with indicator light (11RI)​. The "B6L" suffix denotes ​24V DC operation with integrated LED status display. Housed in a compact 22.5mm DIN rail-mountable enclosure (IP20 rated), it monitors emergency stops, safety gates, light curtains, and interlocks through screw terminals. The integrated multicolor LED provides clear visual feedback for power status, operational state, reset condition, and fault diagnostics. Force-guided contacts ensure positive opening action during safety events, while the monitored reset function prevents unauthorized restarts until safety conditions are verified.

2. ​Key Technical Parameters​

• ​Electrical Specifications:
  • Operating Voltage: 24V DC ±20% (19.2–28.8V)
  • Safety Outputs: 2 NC contacts (6A @ 250V AC / 8A @ 24V DC)
  • Power Consumption: ≤3.5W
• ​Reset Functionality:
  • Monitored manual reset (Terminals Y1/Y2)
  • Integrated reset status LED (B6L feature)
• ​Performance Metrics:
  • Response Time: ≤80ms (fault detection to contact break)
  • Contact Separation: Guaranteed >0.5mm gap
• ​Environmental Resilience:
  • Temperature Range: -25°C to +55°C
  • Humidity: ≤95% non-condensing
  • Vibration: 10g @ 55Hz (IEC 60068-2-6)
• ​Compliance Certifications:
  • UL 508, EN 60947-5-1, IEC 61508 SIL 3
  • CE EMC/LVD Directives (2014/30/EU & 2014/35/EU)

3. ​Primary Applications​

This relay is essential for high-risk industrial scenarios requiring controlled restart authorization:

• ​Robotic Welding Cells: Ensures safe restart after door closure with operator presence verification
• ​Press Brakes: Prevents restart until ram fully retracts and light curtains are clear
• ​Plastic Injection Molding: Coordinates reset with mold safety interlocks
• ​Automated Assembly Lines: Monitors multiple safety gates in automotive production
• ​Packaging Machinery: Restart control for high-speed wrapper safety circuits
• ​CNC Machining Centers: Spindle guard monitoring with tool change verification
• ​Material Handling Systems: Conveyor emergency stop reset management
• ​Test Laboratories: Controlled restart of high-voltage equipment
  The integrated reset LED provides immediate visual confirmation of reset status in control panels, reducing operator errors in fast-paced production environments.

4. ​Functional Advantages​

• ​Visual Reset Confirmation: Integrated LED indicates reset status (green = ready, yellow = in progress)
• ​Enhanced Safety Compliance: Dual-channel architecture maintains PL e with single fault tolerance
• ​Diagnostic Precision:
  • Continuous monitoring for contact welding (DC ≥ 99%)
  • Cross-circuit fault detection
• ​Space Optimization: 22.5mm DIN rail width saves panel space
• ​Installation Efficiency:
  • Plug-in cage-clamp terminals reduce wiring time by 50%
  • Pre-configured terminal labels for error-free connections
• ​Global Compliance:
  • Pre-validated templates for ISO 13850 & ANSI B11.19
  • ATEX/IECEx options available (Zone 2/22)
• ​Reliability Features:
  • Force-guided contacts (EN 50205 certified)
  • Reverse polarity protection (±30V tolerance)
• ​Cybersecurity: Physical reset requirement prevents remote manipulation

5. ​Safety Operation Principle​

The relay employs a multi-stage safety protocol:

1. ​Safety Monitoring:
   • Continuously compares both input channels (S11/S12 and S21/S22)
   • Channel desynchronization >20ms triggers immediate shutdown
2. ​Reset Sequence:
   a) Safety conditions restored (guards closed, E-stops reset)
   b) Press and hold external reset button (≥1 second)
   c) Reset LED illuminates yellow during validation
   d) Internal diagnostics verify contact integrity
   e) Safety contacts close after successful validation (LED turns green)
3. ​Critical Safeguards:
   • Undervoltage lockout (<18V DC) prevents partial reset
   • Contact gap sensors verify >0.5mm separation during trip state
   • Semiconductor output (Terminals 41/42) signals "Reset Active" to PLCs
   • Non-volatile memory stores last 5 fault events with timestamps
     The monitored reset function requires both manual intervention and system validation, ensuring compliance with EN ISO 14118 hazardous energy control requirements. When integrated per EN 62061 Annex D, the module achieves diagnostic coverage >99% for dangerous failures.

Packaging & Shipping

Company Information
Xiamen ZhiCheng Automation Technology Co., Ltdit is a leading global supplier of control system components. We specialize in control systems and drives.

With many years of experience in the industrial sector, we consistently deliver the highest quality of spare parts.which make sure that all this jobs are

perfectly.

we are major in PLC,Sensors,HIM,Transmitters.

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