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Allen-Bradley 440G-T27252 TLS-GD2 Guard Locking Switch for industrial safety

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Allen-Bradley 440G-T27252

by Allen-Bradley

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OverviewThe Allen-Bradley 440G-T27252 TLS-GD2 Guard Locking Switch is a critical safety device designed for demanding industrial settings. This power-to-release solenoid switch ensures superior machine guarding with an impressive 2000N (450 lbs) holding force, keeping dangerous zones inaccessible during machine operation. It operates efficiently with standard 24V AC/DC power sources, allowing seamless integration into existing control architectures. The robust construction and intelligent contact setup—including two normally closed (N.C.) safety contacts and one normally open (N.O.) auxiliary contact—provide dependable status monitoring and adhere to strict safety protocols. Its innovative fully-flex actuator offers exceptional mounting adaptability for various machine designs and installation needs, while the M20 conduit entry simplifies wiring for a secure and efficient setup. This Allen-Bradley solution is ideal for applications demanding rigorous safety and operational efficiency.Key Features Power-to-Release Activation: Ensures critical safety by only releasing the guard when power is applied, preventing unintentional access during electrical interruptions. 24V AC/DC Solenoid Compatibility: Offers broad compatibility with standard industrial control systems, facilitating straightforward integration and consistent performance. Two N.C. Safety & One N.O. Auxiliary Contacts: Provides vital feedback for machine status and safety interlocks, enhancing overall system dependability and monitoring capabilities. High Holding Force of 2000N (450 lbs): Delivers exceptional security against unauthorized entry to hazardous machinery, protecting personnel and maintaining operational integrity. Fully-Flex Actuator: Enables versatile and adaptable installation configurations, making it suitable for a wide array of guard types and machine layouts. M20 Conduit Connection: Simplifies wiring and installation, reducing setup time and ensuring robust, protected electrical connections. Technical Specifications Model: 440G-T27252 Series: TLS-GD2 Guard Locking Switch Operating Mode: Power-to-Release Solenoid Voltage: 24V AC/DC Contact Configuration: 2 N.C. Safety, 1 N.O. Auxiliary Holding Force: 2000N (450 lbs) Actuator Type: Fully-Flex Conduit Entry: M20 Applications Industrial Machine Guarding: Essential for safeguarding operators and maintaining safe distances from moving parts and dangerous equipment. Automated Production Lines: Ensures secure access control in high-speed, automated environments where precise safety interlocks are crucial. Safety Interlocking for Hazardous Equipment: Critical for applications involving presses, robots, and other high-risk machinery, preventing operation until guards are securely locked. Compliance with Machinery Safety Standards: Helps organizations meet and surpass international and local safety regulations, ensuring a secure working environment. Robotic Work Cells: Provides reliable entry/exit control, protecting personnel from unintended robot movements. Packaging and Material Handling Systems: Enhances safety around conveyor belts, palletizers, and other automated material flow equipment. Why Choose? Uncompromised Safety: The power-to-release mechanism ensures that hazardous machinery remains locked if power is lost, prioritizing personnel safety above all else. Robust Construction and Durability: Engineered by Allen-Bradley, a leader in industrial automation, this switch is built to endure harsh industrial conditions, ensuring long-term reliability and performance. Seamless Integration: With its 24V AC/DC compatibility and M20 conduit entry, the 440G-T27252 is designed for straightforward integration into a wide array of existing control systems and machinery. Flexible Installation: The fully-flex actuator significantly simplifies mounting, allowing for diverse placement options. Order NowEnhance your industrial safety protocols with the Allen-Bradley 440G-T27252 TLS-GD2 Guard Locking Switch. Contact us today to secure this essential component for your operations.FAQHow does the power-to-release mechanism function?The power-to-release mechanism ensures that the guard remains locked and secure during power failures, only unlocking when power is actively supplied. This design significantly enhances safety by preventing access to hazardous areas during unexpected outages.What is the benefit of the fully-flex actuator?The fully-flex actuator offers unparalleled versatility in mounting, adapting to various machine designs and installation requirements. This flexibility simplifies the setup process and ensures optimal guard positioning for enhanced safety.Is this switch compatible with standard industrial control systems?Yes, the 440G-T27252 features 24V AC/DC solenoid voltage, providing broad compatibility with a wide range of standard industrial control systems for seamless integration.

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PRODUCT DETAILS

Allen-Bradley 440G-T27252

Overview

This is a genuine Allen-Bradley component. PalmPartsSolution stocks it in new, refurbished, and surplus condition with tested warranty and same-day shipping on in-stock units.

Whether you are sourcing a like-for-like replacement for an existing installation, an emergency spare to keep a line running, or a qualified part for a new build, our team can confirm availability, revision, and lead time before you order.

Key Features

  • Genuine Allen-Bradley catalog part
  • Tested before shipment
  • Backed by PalmPartsSolution warranty
  • Cross-reference and revision assistance available
  • Compatible with the broader Allen-Bradley automation ecosystem

Compatibility

When ordering, match the full catalog/part number, hardware revision, and firmware revision called out by your Allen-Bradley equipment. Where applicable, confirm:

  • Input/output voltage and current rating
  • Communication protocol and network role
  • Mounting form factor and footprint
  • Operating temperature, humidity, and IP rating
  • Required certifications (UL, CE, ATEX, marine, etc.)

Not sure which revision you need? Send us the catalog number on the nameplate and we will confirm the correct match.

Replacement Information

Three ways to source this part through PalmPartsSolution:

  1. Exact replacement — same Allen-Bradley catalog number, new or refurbished, tested and warrantied
  2. Form-fit-function equivalent — alternate revision or build that drops in without code changes
  3. Engineered migration — current-generation Allen-Bradley platform with documented conversion notes

Contact our engineering team if you need help choosing between these tracks.

Technical Specifications

  • Model: 440G-T27252
  • Series: TLS-GD2 Guard Locking Switch
  • Operating Mode: Power-to-Release
  • Solenoid Voltage: 24V AC/DC
  • Contact Configuration: 2 N.C. Safety, 1 N.O. Auxiliary
  • Holding Force: 2000N (450 lbs)
  • Actuator Type: Fully-Flex
  • Conduit Entry: M20

Applications

  • Industrial Machine Guarding: Essential for safeguarding operators and maintaining safe distances from moving parts and dangerous equipment.
  • Automated Production Lines: Ensures secure access control in high-speed, automated environments where precise safety interlocks are crucial.
  • Safety Interlocking for Hazardous Equipment: Critical for applications involving presses, robots, and other high-risk machinery, preventing operation until guards are securely locked.
  • Compliance with Machinery Safety Standards: Helps organizations meet and surpass international and local safety regulations, ensuring a secure working environment.
  • Robotic Work Cells: Provides reliable entry/exit control, protecting personnel from unintended robot movements.
  • Packaging and Material Handling Systems: Enhances safety around conveyor belts, palletizers, and other automated material flow equipment.

Why Choose the 440G-T27252?

  • Uncompromised Safety: The power-to-release mechanism ensures that hazardous machinery remains locked if power is lost, prioritizing personnel safety above all else.
  • Robust Construction and Durability: Engineered by Allen-Bradley, a leader in industrial automation, this switch is built to endure harsh industrial conditions, ensuring long-term reliability and performance.
  • Seamless Integration: With its 24V AC/DC compatibility and M20 conduit entry, the 440G-T27252 is designed for straightforward integration into a wide array of existing control systems and machinery.
  • Flexible Installation: The fully-flex actuator significantly simplifies mounting, allowing for diverse placement options.

Availability & Shipping

  • In stock: 440G-T27252 ready for immediate dispatch from our Florida warehouse.
  • Free USA shipping: FedEx Priority (2–5 business days) and UPS Ground (3–5 business days). Expedited options available at checkout.
  • Worldwide delivery: FedEx International Priority (1–5 days), UPS International Priority (3–5 days), and USPS International (5–10 days) — rates calculated at checkout.
  • Bulk pricing: Volume discounts on request — contact our sales team for quantity quotes.
  • Buy with confidence: Every 440G-T27252 ships with a 1-Year PALM Parts warranty and a 30-day return window.
SUPPORT

Frequently Asked Questions — Allen-Bradley

The power-to-release mechanism ensures that the guard remains locked and secure during power failures, only unlocking when power is actively supplied. This design significantly enhances safety by preventing access to hazardous areas during unexpected outages.

Machine down? We ship parts the same day.

New, surplus, and refurbished Allen-Bradley inventory in stock. Request a quote or speak directly with an automation specialist for emergency sourcing.

CUSTOMER REVIEWS

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PALM Parts Solution operates as an independent industrial automation supplier and is not an authorized distributor or affiliate of any listed manufacturer or brand name. Manufacturer trademarks and product names are used solely for identification purposes. Original manufacturer warranties do not apply. All products sold by PALM Parts are backed by our own 1-year warranty.

Product Condition & Firmware

All products are sold as new unless stated otherwise. Original manufacturer packaging may show signs of handling, storage, or shelf wear. Date codes and series may vary from current factory production. PALM Parts does not guarantee the presence, version, or compatibility of any firmware on PLC or automation products.

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