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440T Trapped Key Bolt Interlock Switches
Allen‑Bradley

Our 440T Trapped Key Bolt Interlock Switches allow access to hazardous areas only when an appropriate key is inserted into the interlock.
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440T-MSBSS10AA Engraved Elec Bolt Trapped Key Interlock product image
440T-MSBSS10AA Engraved Elec Bolt Trapped Key Interlock
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Bolt Interlock - Single Key Electrical, Engraved Key Code Labeling, Key Trapped, Retracted: 0mm, Extended: 14mm
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440T-MSBSS11AA Engraved Elec Bolt Trapped Key Interlock product image
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Bolt Interlock - Single Key Electrical, Engraved Key Code Labeling, Key Trapped, Retracted: 3mm, Extended: 17mm
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440T-MSBUE10AA Trapped Key Interlock product image
440T-MSBUE10AA Trapped Key Interlock
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Bolt Interlock - Single Key Solenoid, Standard Key Code Labeling, Key Free to retract bolt: 0mm, Extended: 14mm
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440T-MSBUE13AA Trapped Key Interlock product image
440T-MSBUE13AA Trapped Key Interlock
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Bolt Interlock - Single Key Solenoid, Standard Key Code Labeling, Key Free to retract bolt: 12mm, Extended: 27mm
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440T-MSBUE33AA Trapped Key Interlock product image
440T-MSBUE33AA Trapped Key Interlock
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Bolt Interlock - Single Key Solenoid, Standard Key Code Labeling, Key Trapped to retract bolt: 0mm, Extended: 14mm
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440T-MSBUE34AA Trapped Key Interlock product image
440T-MSBUE34AA Trapped Key Interlock
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Bolt Interlock - Single Key Solenoid, Standard Key Code Labeling, Key Trapped to retract bolt: 3mm, Extended: 17mm
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440T-MSBUE36AA Trapped Key Interlock product image
440T-MSBUE36AA Trapped Key Interlock
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Bolt Interlock - Single Key Solenoid, Standard Key Code Labeling, Key Trapped to retract bolt: 12mm, Extended: 27mm
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440T-MSBUS34AA Engraved Sol Bolt Trapped Key Interlock product image
440T-MSBUS34AA Engraved Sol Bolt Trapped Key Interlock
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Bolt Interlock - Single Key Solenoid, Engraved Key Code Labeling, Key Trapped to retract bolt: 3mm, Extended: 17mm
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440T-MSBLE12 Switch Body product image
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440T-MSBLE12AA Trapped Key Interlock product image
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Bolt Interlock - Single Key Mechanical, Standard Key Code Labeling, Key Trapped, Retracted: 6mm, Extended: 20mm
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440T-MSBLE13 Switch Body product image
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440T-MSBLE10AA Trapped Key Interlock product image
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Bolt Interlock - Single Key Mechanical, Standard Key Code Labeling, Key Trapped, Retracted: 0mm, Extended: 14mm
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440T-MSBLE11AA Trapped Key Interlock product image
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Bolt Interlock - Single Key Mechanical, Standard Key Code Labeling, Key Trapped, Retracted: 3mm, Extended: 17mm
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440T-MDBLE17 Switch Body product image
440T-MDBLE17 Switch Body
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440T-MDBLJ14AAAC Trapped Key Interlock product image
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440T-MDBLE16AAAC Trapped Key Interlock product image
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Bolt Interlock - Dual Key Mechanical, Standard Key Code Labeling, Trap Prim., Free Sec., Retract: 6mm, Extend.: 20mm
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440T-MTBLE10 Switch Body product image
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440T-MTBLE11AAAAAA Trapped Key Interlock product image
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Bolt Interlock - Triple Key Mechanical, Standard Key Code Labeling, Both Keys Trapped, Retracted: 3mm, Extended: 17mm
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440T-MTBLE13 Switch Body product image
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440T-MTBLS12AAAAAA Trapped Key Interlock product image
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Bolt Interlock - Triple Key Mechanical, Engraved Key Code Labeling, Both Keys Trapped, Retracted: 6mm, Extended: 20mm
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440T-MQBLE17 Switch Body product image
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Overview Chevron DownChevron Down
Allen Bradley

Our 440T Trapped Key Bolt Interlock Switches allow access to hazardous areas only when an appropriate key is inserted into the interlock. These stainless steel bolt interlocks provide a rugged, industrial-grade method of helping prevent access through gates. With these bolt interlocks, there is no need to run power wires to the gate. These bolt interlocks are available in mechanical, electrical, and solenoid switch types.

  • 316 stainless steel construction
  • Single-, dual-, triple-, and quad-key versions
  • Various extensions of bolt
  • Direct drive push/pull operation
  • Replaceable code barrels
  • Fitted with tamper-resistant screws
  • Weatherproof stainless steel dust cap
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
Single and Dual Key Bolt Interlock Installation 440T-IN012_-MU-P
Prosafe Boltlock with Electrical Isolation Installation 440T-IN013_-MU-P
Prosafe Boltlock Solenoid Locked with Electrical Isolation Installation 440T-IN014_-MU-P
Triple Key Bolt Interlock Installation 440T-IN032_-MU-P
Quad Key Bolt Interlock Installation 440T-IN025_-MU-P
Miscellaneous Publication
Safety Switches Brochure GLSAFE-BR002_-EN-P
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