Rockwell Automation 440T-MDBUE14DBD Caged Key Interlock
The Rockwell A-B 440T-MDBUE14DBDCTrapped Key Interlock is a critical safety component designed for modular control panels. It ensures safe access to machinery by trapping the key until the machine has come to a complete stop, thus preventing accidental start-ups during maintenance or repair.
Compatibility:For Allen Bradley ControlLogix 5550, 5560 controllers
Key Operation:Caged key operation for secure interlock
Input Voltage Range:24 VDC
Operating Temperature:-25°C to +70°C
Protection Rating:IP65
Dimensions:95 x 90 x 48 mm
Weight:0.4 kg
The Rockwell A-B 440T-MDBUE14DBD Trapped Key Interlock is an essential component for ensuring operator safety in high-risk industrial settings. Its robust design and reliable performance make it a trusted choice for machinery safety systems.
This interlock module features a trapped key mechanism that ensures that operators cannot access hazardous areas until all energy sources are safely isolated. The key remains trapped within the module until it is reset, providing a fail-safe method of preventing unauthorized access.
The device is compatible with a variety of actuators and key types, allowing for flexible installation and configuration. Color-coded keys further enhance safety by indicating which keys should be used in specific situations.
With its IP65 environmental protection rating, the A-B 440T-MDBUE14DBD Trapped Key Interlock is built to withstand harsh industrial conditions, including dust and water ingress. This ensures long-term reliability and minimal maintenance requirements.
Certified to CE, UL, and ATEX standards, this interlock module meets stringent safety requirements and is suitable for use in explosive atmospheres. Its compact design and easy installation make it a convenient choice for a wide range of applications.











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