440T-MSSUE220H

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Overview of Allen-Bradley 440T-MSSUE220H Trapped Key Interlock Switch

The Allen-Bradley 440T-MSSUE220H is a trapped key interlock switch designed for safety applications where secure access control to hazardous machinery is required. It features a single key, slamlock mechanism with direct drive operation and a stainless steel construction for durability. The solenoid operates at 24 V DC, and the unit includes an integral solenoid monitor and key-free status indicator for enhanced safety.

Key Features of Allen-Bradley - 440T-MSSUE220H

  • Single key trapped key interlock with slamlock mechanism for secure guarding.
  • Operates at 24 V DC solenoid voltage with integral monitoring.
  • Stainless steel construction with weatherproof dust cap for industrial environments.
  • Direct drive operation positively opens contacts.
  • Key can only be removed when solenoid is energized (power to release).
  • Includes key-free status indicator (light or neon) for visual confirmation.
  • Replaceable code barrel assembly for tailored keying requirements.
  • Certified to EN ISO 14119 with Category 3 and Performance Level d safety classification.

Technical Specifications of 440T-MSSUE220H

Model Number 440T-MSSUE220H
Key Type Single Key
Solenoid Voltage 24 V DC
Material 316L Stainless Steel
Operation Slamlock, Trapped Key
Contact Type 2 N.C. + 1 N.O. Break Before Make
Protection Weatherproof Dust Cap
Standards Compliance EN ISO 14119, GS-ET-31, EN ISO 13849-1
Safety Category Category 3, PLd

Applications / Use Case

The 440T-MSSUE220H is ideal for securing hazardous machine access points where reliable safety locking and key control are vital. It's used in manufacturing, metalworking, and material handling industries to prevent accidental or unauthorized entry during machinery operation.

440T-MSSUE220H

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Does it come with a warranty?

Yes, All products are offered wth 1-Year warranty.

What is the condition of the product?

All products sold are New & Unused.

How fast is shipping?

All products are delivered within 2-8 business days depending on our stock location.

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