AZM150SK-02/02RT-230 Dual Contact Redundant Interlock 230V IP67 SS Temperature Monitor Industrial Guard

1. Product Overview​

The Schmersal AZM150SK-02/02RT-230 is an industrial safety relay engineered for high-voltage automation systems requiring robust emergency stop (E-stop) and guard door monitoring. Operating at ​230V AC (±10% voltage tolerance)​, this DIN-rail mountable module combines ​dual-channel diagnostics (02)​​ with ​time-delayed manual reset functionality (RT)​​ to ensure controlled restart sequences for hazardous machinery. Encased in a 22.5mm-wide polycarbonate housing (IP20 rated), the device monitors safety switches, light curtains, and E-stops while meeting ISO 13849-1 PL e (Cat. 4) and IEC 62061 SIL 3 standards. Integrated tri-color LEDs provide real-time status visualization (power, operation, fault), and force-guided contacts guarantee positive contact separation during shutdown events. Designed for industrial control cabinets, its screw terminal connections simplify wiring in HVAC systems, heavy machinery, and high-voltage applications where direct line voltage operation is essential.

​2. Key Technical Parameters​

• ​Electrical Specifications:
  • Operating Voltage: 230V AC 50/60Hz (±10%)
  • Safety Outputs: 2 × NC Contacts (6A @ 250V AC / 8A @ 24V DC)
  • Reset Function: Timed manual reset (0.5–10s adjustable)
• ​Performance Metrics:
  • Response Time: ≤100ms (fault detection → contact break)
  • Reset Delay Accuracy: ±10% of configured time
• ​Environmental Resilience:
  • Temperature Range: –25°C to +55°C
  • Humidity: ≤95% non-condensing
  • Pollution Degree: 2 (IEC 60664)
• ​Safety Approvals:
  • SIL 3 (IEC 62061), PL e (ISO 13849-1)
  • UL 508, EN 60947-5-1, CE/UKCA/EMC
• ​Diagnostic Signals:
  • Auxiliary Output: Semiconductor (24V DC, 100mA)
  • Monitored Reset Input: Terminals Y1/Y2

​3. Primary Applications & Use Cases​

This relay is optimized for industrial systems where 230V AC infrastructure demands native voltage safety control:

• ​High-Power Presses: Monitored E-stop circuits for hydraulic stamping presses (≥100kW)
• ​Industrial Ovens: Guard door interlocks for thermal processing equipment
• ​HVAC Fan Arrays: Safety disconnects for large centrifugal fan systems
• ​Packaging Machinery: Light curtain integration for form-fill-seal machines
• ​Material Handling: Conveyor emergency stops in bulk logistics centers
• ​Plastics Manufacturing: Injection molding machine guard monitoring
• ​Heavy Robotics: Safety gate control for automotive welding cells
• ​Test Laboratories: Interlock sequencing for high-voltage test benches

​Critical Application Notes:

• Reduces need for control voltage transformers in 230V systems
• Timed reset ensures motor coast-down (>100 RPM) before restart
• SIL 3 compliance mandatory in chemical/power generation sectors

​4. Functional Advantages & Benefits​

​5. Safety Functionality & Reset Sequence​

​Operating Workflow:​​

1. ​Safety Activation:
   • E-stop pressed or guard opened → inputs (S11/S12, S21/S22) desynchronize
   • Force-guided contacts ​break within 100ms​ (0.5mm guaranteed gap)
2. ​Reset Protocol:
   a) Hazard clearance → safety devices restored
   b) Reset button pressed → Y1/Y2 energized
   c) ​Timer activates (0.5–10s)​​ → "Reset Active" LED flashes
   d) Timer completes → safety outputs close
3. ​Fail-Safe Monitoring:
   • Contact gap monitoring via spring-loaded alignment
   • Cross-circuit detection prevents tampering
   • Undervoltage lockout (<207V AC deactivates outputs)

​Critical Safety Features:

• Manual reset ​mandates operator presence​ at control panel
• Potentiometer adjustment requires tool access to prevent unauthorized changes
• Auxiliary output (T33/T34) signals "Reset in Progress" to PLC systems

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

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