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Allen-Bradley 440T-MRKSE11AE Trapped Key Interlock

Brand/Manufacturer: Allen-Bradley

Order Number: 440T-MRKSE11AE

Type: Trapped Key Interlock

Country of Origin: Sweden

Condition: Original Brand

Lead Time: Available in stock

Payment Term: 100% TT In Advance

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Description

The Allen-Bradley 440T-MRKSE11AE Trapped Key Interlock Switch is designed to provide a reliable, secure safety solution for industrial automation systems. This interlock switch uses a trapped key mechanism to ensure that equipment cannot be operated unless all safety conditions are met. It is ideal for applications requiring strict safety protocols, such as preventing unauthorized access to hazardous machinery or controlling access to critical areas during maintenance.

With its durable construction and seamless integration into Allen-Bradley safety systems, the 440T-MRKSE11AE helps improve both operator safety and operational efficiency. Whether in manufacturing, robotics, or automated production lines, this switch plays a crucial role in safeguarding personnel and equipment.

Functional Highlights / Key Benefits / Main Features

  • Enhanced Safety: The trapped key interlock system ensures that machines cannot start until the proper safety procedures are followed. This reduces the likelihood of operator injuries due to accidental machine startup.

  • Durable Construction: Built from high-quality thermoplastic materials, the 440T-MRKSE11AE is designed to withstand harsh industrial environments. It resists dust, moisture, and other common workplace contaminants, ensuring reliable performance.

  • Tamper-Proof Design: The trapped key system provides an additional layer of security by preventing unauthorized personnel from operating machinery. Only those with the correct keys can unlock and operate the system.

  • Positive Opening Action: The switch includes a positive opening action, ensuring that contacts are positively separated in the event of a malfunction or safety breach, maintaining system integrity.

  • Simple Integration: Designed to integrate seamlessly with Allen-Bradley’s safety control systems, the 440T-MRKSE11AE offers smooth installation and enhanced compatibility with other industrial automation devices.

Technical Data / Specifications

Feature Specification
Part Number 440T-MRKSE11AE
Type Trapped Key Interlock Switch
Key Type Trapped key
Housing Material Thermoplastic
Connection Type Screw terminals
Operating Voltage 24V DC
Current Rating 2A
Degree of Protection IP67 (dust-tight and water-resistant)
Ambient Temperature Range -25°C to 70°C
Certifications UL, CE, TÜV

Typical Applications / System Integration / Use Cases

  • Machine Safety: The 440T-MRKSE11AE is ideal for preventing machine startup during maintenance, ensuring that operators cannot access hazardous areas while machinery is in motion.

  • Automated Work Cells: In automated systems, this interlock switch prevents machines from operating when workers are present in a hazardous zone, reducing the risk of injuries from unexpected movements.

  • Manufacturing Lines: Commonly used in assembly lines and packaging systems where access to dangerous equipment needs to be strictly controlled during production or repair processes.

  • Robotic Systems: In robotic environments, the switch ensures that robots are securely locked during setup, maintenance, or while performing automated tasks, ensuring safety for workers interacting with the system.

  • Hazardous Material Handling: The 440T-MRKSE11AE is also perfect for hazardous material handling, where controlled access to dangerous machines or equipment is required to ensure operator safety.

FAQ

1. What is the function of the trapped key mechanism?

The trapped key system locks the key inside the interlock switch until the machine is in a safe state. This ensures that equipment cannot be operated until proper safety checks are completed.

2. Is the 440T-MRKSE11AE suitable for outdoor use?

Yes, the 440T-MRKSE11AE has an IP67 rating, which means it is dust-tight and protected against immersion in water, making it suitable for both indoor and outdoor industrial environments.

3. Can this interlock switch be integrated into existing Allen-Bradley systems?

Absolutely. The 440T-MRKSE11AE is designed to easily integrate with Allen-Bradley’s range of safety systems, allowing for streamlined setup and enhanced safety management.

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Testimonials

Fast Delivery, Excellent Quality


We’ve worked with IndustriaX Limited on several urgent orders for automation components. Their ability to provide original, factory-sealed parts with full documentation—often from in-stock inventory—has significantly reduced our downtime. The delivery is consistently fast, and their logistics team is highly responsive. IndustriaX has become one of our most trusted global suppliers for industrial spare parts.

- Sarah Johnson

Reliable Partner for Original Parts


Finding authentic automation parts has always been a challenge, especially for discontinued models. IndustriaX Limited has impressed us with their genuine stock, clear product traceability, and prompt updates. We’ve verified their shipments against OEM specs multiple times, and the results are flawless. They’re now our preferred sourcing partner for critical systems.

- David Smith

Professional Service with After-Sales Support

"IndustriaX Limited doesn’t just ship products—they provide solutions. When we encountered installation issues with one of the modules, their technical team replied in less than 4 hours and provided wiring guides and troubleshooting tips. This level of post-sale support is rare in the spare parts sector. Their professionalism gives us confidence in every order."

- Emily Brown

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We've tested multiple suppliers over the years, but IndustriaX Limited consistently stands out. Their product catalog is extensive, their team is knowledgeable, and they understand the urgency of industrial needs. With every order, we receive timely updates, fast delivery, and 100% genuine products. It’s rare to find such consistency and reliability in this field.

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