Allen Bradley 440C-CR30-22BBB Guardmaster Safety Relay

Product Introduction

The Allen Bradley 440C-CR30-22BBB Guardmaster Safety Relay is a software-configurable safety control device designed to manage complex machine safety functions in industrial automation systems. It is part of the Guardmaster CR30 series, developed to replace traditional hard-wired safety relay logic with a programmable and flexible safety control platform.

This safety relay supports up to 22 safety inputs and outputs, enabling centralized management of emergency stop circuits, safety gates, light curtains, and other protective devices. With a Performance Level e (PLe) and SIL 3 rating, it is designed for high-risk safety applications where reliable machine shutdown and operator protection are critical.

The unit features an embedded serial port and USB programming interface, allowing easy configuration, diagnostics, and system integration. With two plug-in expansion slots, it supports scalable safety architectures for more complex machine designs. Operating on a 24 VDC supply, it is suitable for modern industrial safety systems requiring compact installation and advanced programmable functionality.

Product Specifications

Applications

• Machine Safety Systems: Used for controlling emergency stop circuits and safety interlocks in automated machinery.

• Industrial Automation Safety: Provides centralized safety logic control for production lines and robotic systems.

• Safety Gate Monitoring: Ensures safe operation by monitoring door switches and access guards.

• Light Curtain Integration: Works with optical safety devices to protect operators from hazardous zones.

• OEM Machinery Safety Design: Suitable for machine builders implementing advanced programmable safety architectures.

Advantages

• Software Configurable Safety Logic: Replaces traditional hard-wired safety relays with flexible programmable logic.

• High Safety Rating: PLe and SIL 3 compliance ensure suitability for high-risk industrial applications.

• Compact Design: Small footprint simplifies installation inside control panels.

• Expandable Architecture: Two plug-in slots allow system expansion for additional safety functions.

• Simplified Diagnostics: USB programming and embedded serial port improve configuration and troubleshooting.

• Reduced Wiring Complexity: Integrates multiple safety functions into a single device, reducing panel wiring.

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