440T-MDALE10ABAC Allen Bradley

Description

Product Name:  440T-MDALE10ABAC Allen Bradley Programmable controller

Product details:

The 440T-MDALE10ABAC is a mechanical dual-key access interlock designed to be part of a sequential trapped key safety system. Its primary function is to ensure that a machine or process hazard is safely isolated before access is granted.

• Type: Trapped Key Interlock (Mechanical Safety Interlock)
• Key Type: Dual Key
• Actuator Type: Lever
• Key Trapping Condition: Lever inserted (guard is secure) – 1 key in / 1 key out.
  • Primary Key Condition: Primary key is trapped when the lever is inserted (guard is secure/closed).
  • Secondary Key Condition: Secondary key is free to release the lever (and open the guard) after the primary key is inserted and trapped.
• Key Code Labeling: Standard Key Code Labeling
• Key Codes:
  • Primary Key 1 Code: Ab
  • Secondary Key 1 Code: Ac
• Function: Access/Chain lock Primary Trapped, Secondary Free (Acc/Chain lck Prim Tr Sec Free)

Product Parameters (Specifications)

Product Advantages

1. High Safety Integrity: Provides a robust mechanical safety interlocking mechanism, ensuring a strictly enforced sequence of operations.
2. Tamper Resistance: Due to its mechanical nature and unique key coding, it offers a high degree of security against unauthorized access or bypassing the system.
3. Harsh Environment Suitability: Mechanical systems are often preferred in locations where electrical systems are unsuitable, such as areas with high explosion risk (explosion-proof) or severe environmental conditions (e.g., extreme temperatures or wash-down areas, often with stainless steel components).
4. System Flexibility: Can be used to build complex safety chains by linking multiple interlocks, ensuring all necessary steps (e.g., power isolation, coast-down time delay, venting) are completed before access is granted.
5. Durability: Robust construction with a stainless steel faceplate (316L) provides excellent mechanical durability and resistance to corrosion.

Precautions (Safety Considerations)

• Key Management: The integrity of the system relies entirely on strict control over the keys. Keys must not be duplicated, left unattended, or removed from the system prematurely.
• Installation: Must be installed correctly by qualified personnel, following the manufacturer’s instructions and relevant local safety standards (e.g., ISO 14119). Misalignment can lead to premature wear or failure.
• Actuator/Lever: Ensure the lever operates smoothly and that the guard door is properly secured when the key is trapped.
• Maintenance: Regular inspection and maintenance are required to check for wear, damage, and proper function, especially for the locking mechanism.
• System Design: The interlock must be integrated into a complete safety system (including energy isolation devices) so that the release of the key ensures the hazard is removed. It is a locking device, not an electrical switch for cutting power.

Product Application

The Allen-Bradley 440T-MDALE10ABAC Trapped Key Interlock is primarily used in industrial environments where access to hazardous machinery is required, but only after specific safety conditions have been met.

Typical Applications Include:

• Guard Door Access: Interlocking guard doors on large machines (e.g., mixers, conveyors, robotics cells, large presses) to ensure the power is isolated and the machine is at a safe stop before the door can be opened.
• Sequential Access Control: Used as a step in a sequence to transfer a key to another device (e.g., a key exchange box or a time-delay unit) that manages the complete safe access procedure.
• Process Safety: Ensuring that one part of a process is shut down and safe before allowing an operator to access a related, secondary area.
• High-Risk Environments: Applicable in environments where a robust, non-electrical interlock is the best solution for safety.

Advantages: Foxboro, OVATION, TRICONEX, Allen-Bradley, ABB, Motorola, Siemens Moore, Ge Fanuc, Woodward, Bently Nevada and other major import brands!

We have the same series of models in stock.  If you don’t find the model you need, please contact us and we will provide you with an official quotation！

Colour：new Warranty: 12 months
Lead Time：3-day working day Country of origin: Sweden
Price: Please contact us Product weight：0.515kg
Shipping Port: Xiamen, China
Payment: Bank of Chicago, Bank of Singapore
Express cooperation: fedex, DHL, UPS and your express account
Service: Professional Sales provides 24 hours /7 days online service

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