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EUCHNER MGB-AR Series multifunctional gate boxes are safety door interlocking and guard locking systems designed to monitor and secure protective doors on industrial machinery and automated systems. The MGB system combines door monitoring, guard locking, and operator control functions into a modular safety device that helps protect personnel while ensuring machines operate only when safety doors are properly closed and secured. By integrating multiple safety and control functions into one unit, the MGB-AR Series simplifies installation and supports reliable safety monitoring for machine guarding applications.

The MGB-AR Series is designed for applications where multiple safety devices must be connected in series on a single safety circuit. These units can be linked with other AR devices to monitor several guard doors within one shutdown path, helping reduce wiring complexity in machine safety systems. The multifunctional design allows integration of handles, interlocking or guard locking modules, and optional control elements such as pushbuttons or emergency stop devices. This modular approach allows the system to be configured for specific machine safety requirements while maintaining clear monitoring of door and locking status.

Key Features

• Multifunctional safety system designed to monitor and secure machine safety doors
• Part of the EUCHNER MGB family of multifunctional gate box safety systems
• Designed for series connection of multiple safety devices on a single safety circuit
• Multiple MGB-AR units can be connected together in a safety chain
• Integrated guard locking and door monitoring depending on configuration
• Auxiliary release available for manual unlocking
• Connection options include cable entry or plug connectors
• Connector options include M23 (RC18) or M12 12-pin plug connections
• Guard locking can be controlled via PLC control input (IMP) requiring approximately 3 mA
• Monitoring outputs provide system status signals
• OD monitoring output indicates when the safety door is closed
• OT monitoring output indicates when the bolt tongue is inserted in the evaluation module
• Modular system consisting of handle module and interlocking or locking module
• Optional integration of control elements such as pushbuttons or emergency stop devices
• Suitable for machine guarding applications on industrial equipment

Certifications

• Performance Level PL e according to EN ISO 13849-1 (depending on configuration)
• Safety Category 4 according to EN ISO 13849-1 (depending on configuration)