Safety temperature limiter STL50

Certified Safety Temperature Limiter for Thermal Process Protection

The STL50 Safety Temperature Limiter is a programmable safety controller designed to monitor thermal processes and immediately switch systems to a safe operating state when temperature limits are exceeded or a fault occurs. Certified to DIN EN 14597, EN 61508 (SIL2), and EN ISO 13849 (PL d), it delivers dependable protection for industrial heating and process applications.

Key Features of Safety Temperature Limiter STL50

Safety Temperature Limiter STL50 is designed to monitor thermal processes and switch a system to a safe operating state when a defined temperature limit is reached or a monitoring fault occurs.

  • 🌡️ Certified Safety Monitoring

    Approved to DIN EN 14597, SIL2, and PL d standards for reliable over-temperature protection in safety-critical applications.

  • ⚙️ Flexible Sensor Compatibility

    Supports Pt100 (3-wire) and Type J, K, N & S thermocouples with programmable temperature limits and switching hysteresis.

Key Features:

  • 🚨 Fast Alarm & Safety Shutdown

    Instantly detects over-temperature, sensor failures, short circuits, and power faults while activating safety relay, pre-alarm relay, and external alarm output.

  • 📟 Easy Configuration & LCD Display

    Features a graphic LCD with plain-text messages, front-panel programming, password protection, and error memory for simple operation.

Safety Temperature Limiter STL50 Applications

  • 🔥 Industrial Heating Systems

    Protects boilers, furnaces, ovens, and heat-generating equipment from overheating.

  • 🌡️ Thermal Process Monitoring

    Ensures safe temperature monitoring in manufacturing and industrial processing.

  • ⚙️ Machine & Equipment Protection

    Safeguards machinery by automatically shutting down during unsafe temperature conditions.

  • 🤖 Industrial Automation

    Integrates with PLCs and control systems for reliable temperature safety monitoring.

The Safety Temperature Limiter STL50 can be used as a safety temperature limiter, exhaust gas temperature limiter, or safety temperature monitor. It features SIL2 certification, programmable temperature limits, and a plain-text LCD display.

Why Choose This Solution?

The STL50 Safety Temperature Limiter combines certified safety, fast fault detection, programmable protection, and reliable temperature monitoring in one compact DIN rail device, making it ideal for industrial thermal safety applications.

Certified Safety

DIN EN 14597, SIL2, and PL d approved.

Universal Temperature Inputs

Supports Pt100 and thermocouple sensors.

Intelligent Alarm Protection

Fast shutdown with alarm and safety relay outputs.

Simple Configuration

Graphic LCD with plain-text diagnostics and keypad programming.

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