Overview
The Fortress ITM-00294909 is a safety gate interlock switch from the AmGard Pro modular product line, designed for demanding industrial machine guarding applications. This interlock achieves SIL 3 (EN/IEC 60261) Category 4 and PLe (EN/ISO 13849-1) certification, making it compliant with the latest machinery safety directives. The AmGard Pro range includes solenoid and non-solenoid safety switches with options for key control modules, emergency release, redundant sensors, lock-out/tag-out, push buttons, E-stops, and indication lights.
Key Features
- Modular construction for easy configuration and total electro-mechanical solutions for any safeguarding application
- Constructed from metal alloy and stainless steel for extreme durability and reduced wear
- Tested and third-party certified for use up to PLe/Cat. 4 or SIL 3
- Integrated redundancy sensor solution with coding options for enhanced reliability
- Market-leading misalignment capabilities to accommodate guard movement and installation variability
- Forward and backward compatible with existing installed interlocks; features emergency release options and anti-vibration parts
- proNet communication module supports EtherNet/IP, PROFINET, and EtherCAT industrial network protocols
Technical Specifications
- Safety Integrity Level: SIL 3 / PLe
- Performance Level: Category 4 (EN ISO 13849-1)
- Certification: TUV approved
- Materials: Stainless steel and metal alloy construction
- Configuration: Modular (solenoid and non-solenoid variants)
- Locking: Solenoid or trapped-key options available
- Sensors: Redundant sensor solution with coding
- Communication: Optional proNet module (EtherNet/IP, PROFINET, EtherCAT)
- Control Integration: Up to 3 illuminated pushbuttons/lamps/selector switches plus E-stop
- Emergency Release: Single-motion release mechanism
- Escape Release: Available for personnel safety
Typical Applications
The Fortress AmGard Pro ITM-00294909 is suited for:
- Heavy-duty machine guarding on production equipment and assembly lines
- Hydraulic and pneumatic machinery access control
- Automated manufacturing environments requiring guard monitoring and solenoid locking
- Food processing and chemical processing equipment where wash-down or high-humidity environments are present
- Pharmaceutical and medical device manufacturing with strict safety compliance requirements
- Any industrial application requiring Category 4 / SIL 3 certified guard interlocking
Compatibility & Replacements
Compatible With
- Fortress amGard Pro modular control systems
- Solenoid guard locking mechanisms
- Trapped-key interlock control systems
- EtherNet/IP, PROFINET, and EtherCAT industrial networks (via optional proNet module)
- Standard 24 VDC control circuits
- TUV-approved safety relay modules and safety controllers
Replaces / Drop-In Replacement For
Verify compatibility with your system integrator before ordering. The Fortress ITM-00294909 is a modular component within the AmGard Pro ecosystem and may replace earlier non-modular Fortress safety switches or other Category 3 / SIL 2 interlocks when upgrading to higher safety levels.
Works With
- Fortress FRANK (RFID Access Network Keys) for employee permission and access control
- Fortress mounting plates and quick-disconnect connectors
- Multiple connector configurations and mating cables in various lengths
- Industrial automation systems using hardwired or networked safety protocols
- Emergency stop circuits and emergency release mechanisms




















