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440T Access & Chains Trapped Key Interlock Switches
Allen‑Bradley

Our 440T Access/Chains Trapped Key Interlock Switches allow access to hazardous areas only when an appropriate key is inserted into the interlock.
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440T-MSCLE10AA Trapped Key Interlock product image
440T-MSCLE10AA Trapped Key Interlock
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Access Interlock - Single Key, Standard Key Code Labeling, Chain Inserted (Guard is secured) Actuator. Key trapped to release chain.
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440T-MSALS20AA Trapped Key Interlock product image
440T-MSALS20AA Trapped Key Interlock
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Product
Access Interlock - Single Key, Engraved Key Code Labeling, Extended Lever Inserted (Guard is secured) Actuator. Key trapped to release lever.
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440T-MSALS10AA Trapped Key Interlock product image
440T-MSALS10AA Trapped Key Interlock
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Access Interlock - Single Key, Engraved Key Code Labeling, Lever Inserted (Guard is secured) Actuator. Key trapped to release lever.
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440T-MDASE20AABA Trapped Key Interlock product image
440T-MDASE20AABA Trapped Key Interlock
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Product
Access Interlock - Dual Key, Standard Key Code Labeling, Lever Inserted (Guard is secure) Actuator. Primary key trapped, Secondary key free to release lever.
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440T-MDAUE20AABA Trapped Key Interlock product image
440T-MDAUE20AABA Trapped Key Interlock
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Product
Access Interlock - Dual Key, Standard Key Code Labeling, Lever Inserted-Contacts Closed (Guard is secure) Actuator. Primary key trapped, Secondary key free to release lever.
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440T-MDCSE20 Switch Body product image
440T-MDCSE20 Switch Body
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440T-MDCSE20AABA Trapped Key Interlock product image
440T-MDCSE20AABA Trapped Key Interlock
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Access Interlock - Dual Key, Standard Key Code Labeling, Chain Lever inserted (Guard is secured) Actuator. Primary key trapped, Secondary key free to release chain.
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440T-MDCSS20AABA Trapped Key Interlock product image
440T-MDCSS20AABA Trapped Key Interlock
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Access Interlock - Dual Key, Engraved Key Code Labeling, Chain Lever inserted (Guard is secured) Actuator. Primary key trapped, Secondary key free to release chain.
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440T-MDALE10 Switch Body product image
440T-MDALE10 Switch Body
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440T-MSCLE11 Switch Body product image
440T-MSCLE11 Switch Body
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440T-MSCLE11AA Trapped Key Interlock product image
440T-MSCLE11AA Trapped Key Interlock
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Access Interlock - Single Key with Padlock Hasp, Standard Key Code Labeling, Padlock Hasp Chain Inserted (Guard is secured) Actuator. Key trapped to release chain.
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440T-MSCLS10AA Trapped Key Interlock product image
440T-MSCLS10AA Trapped Key Interlock
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Access Interlock - Single Key, Engraved Key Code Labeling, Chain Inserted (Guard is secured) Actuator. Key trapped to release chain.
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440T-MSALE10AA Trapped Key Interlock product image
440T-MSALE10AA Trapped Key Interlock
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Access Interlock - Single Key, Standard Key Code Labeling, Lever Inserted (Guard is secured) Actuator. Key trapped to release lever.
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440T-MDALE11AAAA Trapped Key Interlock product image
440T-MDALE11AAAA Trapped Key Interlock
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Access Interlock - Dual Key, Standard Key Code Labeling, Lever Inserted (Guard is secure) Actuator. Both keys trapped to release lever.
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440T-MDALE45 Switch Body product image
440T-MDALE45 Switch Body
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440T-MDALE45AABA Trapped Key Interlock product image
440T-MDALE45AABA Trapped Key Interlock
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Access Interlock - Dual Key with Padlock Hasp, Standard Key Code Labeling, Padlock Hasp Lever Inserted (Guard is secured) Actuator. Primary key trapped, Secondary key free to release lever.
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440T-MDCLJ10AABA Trapped Key Interlock product image
440T-MDCLJ10AABA Trapped Key Interlock
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Access Interlock - Dual Key with Eject Key, Standard Key Code Labeling, Chain Inserted (Guard is secure) Actuator. Primary key trapped, Secondary spring eject key.
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440T-MTALE11AABABA Trapped Key Interlock product image
440T-MTALE11AABABA Trapped Key Interlock
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Access Interlock - Triple Key, Standard Key Code Labeling, Lever Inserted (Guard is secured) Actuator. One primary trapped, two secondary keys free to release lever.
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440T-MSALE10 Switch Body product image
440T-MSALE10 Switch Body
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440T-MSALE11 Trapped Key Interlock - Body product image
440T-MSALE11 Trapped Key Interlock - Body
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440T-MSALE11AA Trapped Key Interlock product image
440T-MSALE11AA Trapped Key Interlock
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Product
Access Interlock - Single Key with Padlock Hasp, Standard Key Code Labeling, Padlock Hasp Lever Inserted (Guard is secured) Actuator. Key trapped to release lever.
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440T-MSALS11AA Trapped Key Interlock product image
440T-MSALS11AA Trapped Key Interlock
active
Product
Access Interlock - Single Key with Padlock Hasp, Engraved Key Code Labeling, Padlock Hasp Lever Inserted (Guard is secured) Actuator. Key trapped to release lever.
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440T-MSCLE10 Switch Body product image
440T-MSCLE10 Switch Body
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Product
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440T-MSCLS11AA Trapped Key Interlock product image
440T-MSCLS11AA Trapped Key Interlock
active
Product
Access Interlock - Single Key with Padlock Hasp, Engraved Key Code Labeling, Padlock Hasp Chain Inserted (Guard is secured) Actuator. Key trapped to release chain.
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Overview Chevron DownChevron Down
Allen Bradley

Our 440T Access/Chains Trapped Key Interlock Switches allow access to hazardous areas only when an appropriate key is inserted into the interlock. These stainless steel access interlocks provide a rugged, industrial grade method of helping prevent access through gates. They are actuated by either a lever or a rod that is connected to chain.

  • 316L stainless steel construction
  • Direct drive operation
  • Fitted with tamper-resistant screws
  • Stainless steel dust cap
  • Replaceable code barrel assembly
  • Mechanical or electrical switch types
  • Multiple key options
Additional Information

Protect your people, productivity, and environment with our Safety Components

and integrated Safety Solutions
. We understand your factory floor challenges and can help you meet your goals with one of the broadest safety portfolios in the industry.

 


Certifications
FS Engineer (TÜV Rheinland) CertificateFS Engineer (TÜV Rheinland) Certificate
  • CE Marked for all applicable directives
  • TÜV Certified
Functional Safety Data
  • PFHd = 1.00E-7 (Probability of dangerous failure per hr)
  • T1 = 20 (Proof test interval)
Standards Safety Classification

EN ISO 14119 and GS-ET-31 and can be used in safety application up to Category 3, PLd in accordance with EN ISO 13489-1, and in the application area of EN 60204-1.

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Documentation Chevron DownChevron Down
Technical Specifications Publication
Safety Switches Specifications SWITCH-TD001_-EN-P
Installation Instructions Publication
Key Access/Chain Interlock Installation 440T-IN011_-MU-P
Prosafe Door Interlock Installation 440T-IN028_-MU-P
Miscellaneous Publication
Safety Switches Brochure GLSAFE-BR002_-EN-P
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