1138829

Overview

The SICK model 1138829 is a safety relay belonging to the ReLyMULT1 series, designed for monitoring safety functions in industrial machinery. It features a compact design suitable for DIN rail mounting and supports multiple safety circuit configurations. The unit provides diagnostic outputs and cross-circuit detection capabilities to ensure reliable operation. It is engineered to interface with various compatible sensors and actuators within safety-rated systems.

Feature Summary

• Supports restart interlock functionality for controlled machine startup sequences
• Includes external device monitoring (EDM) for contactor feedback verification
• Features cross-circuit detection to identify wiring errors between channels
• Provides diagnostic information output for system status monitoring

Applications

• Monitoring safety doors and guards on packaging machinery
• Controlling emergency stop circuits in automotive assembly lines
• Implementing two-hand control systems in press operations
• Integrating light curtains into automated material handling equipment

Procurement Notes

Verify the specific ordering code against the official SICK catalog to confirm the exact configuration, as suffixes may indicate variations in connection types or certification levels. Ensure compatibility with the existing safety architecture and voltage supply requirements of the target application before procurement.

Selection Notes

Select this model when a compact safety relay with integrated diagnostics and cross-circuit protection is required. It is suitable for applications needing flexible monitoring of multiple safety inputs with minimal space consumption. Consider the ReLyMULT1 series for its ability to handle complex safety logic without additional PLC intervention.

Part Context

This component is part of the ReLyMULT1 safety relay family from SICK, which focuses on modular safety solutions. The series is designed to simplify the implementation of safety functions by combining monitoring and switching in a single unit. It complements other SICK safety components like light curtains and safety switches.

Replacement Considerations

Consult the official SICK replacement guide for direct equivalents. Verify that any substitute maintains the same safety integrity level (SIL/PL) and functional scope. Cross-reference pinouts and mounting dimensions to ensure mechanical and electrical compatibility.