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Allen-Bradley 440K-E33041 Elf Tongue Interlock Safety Switch with 90-degree actuator entry

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Allen-Bradley 440K-E33041

by Allen-Bradley

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OverviewThe Allen-Bradley 440K-E33041 Elf Tongue Interlock Safety Switch is engineered for exceptional machine guarding, preventing unauthorized access to dangerous operational zones. This dependable safety component from Allen-Bradley's esteemed Elf series is vital for upholding industrial safety standards and protecting personnel. Designed for challenging industrial settings, the 440K-E33041 ensures machinery remains secure, offering peace of mind through its reliable interlocking capabilities. Its small size and premium construction make it a top choice for diverse safety-critical uses where precise oversight and robust protection are essential.Key Features Elf Series Tongue Interlock Design Specifically engineered for machine safety, integrating seamlessly into existing safety circuits. Dual Normally Closed (2 N.C.) Safety Contacts Ensures fail-safe functionality, guaranteeing machine shutdown when a guard opens for enhanced operator protection. 90-Degree Actuator Entry Provides adaptable installation choices, accommodating various machine arrangements and space limitations. M16 Conduit Entry Facilitates secure and organized wire management, shielding cabling from environmental hazards and maintaining signal integrity. High-Durability Plastic Housing Lightweight yet remarkably resistant to chemicals, impacts, and general wear common in industrial environments, ensuring a long operational lifespan. Compact and Streamlined Profile Perfect for applications where mounting space is restricted, without compromising on performance or safety attributes. Reliable Performance in Harsh Environments Built to endure the rigors of industrial operations, providing consistent and unwavering safety functionality. Technical Specifications Model: 440K-E33041 Series: Elf Tongue Interlock Switch Safety Contacts: 2 N.C. (Normally Closed) Auxiliary Contacts: None Actuator Entry Angle: 90 Degrees Conduit Entry: M16 Housing Material: High-Strength Plastic Brand: Allen-Bradley Product Type: Tongue Interlock Switch Applications Comprehensive Machine Safety Interlocking Essential for preventing machine operation when safety guards are open or incorrectly closed. Access Control for Hazardous Zones Regulates entry to dangerous areas, protecting operators from moving machinery or high-energy processes. Conveyor System Protection Ensures the safe operation of conveyor lines by preventing access during maintenance or abnormal conditions. Industrial Automation Safety Systems Integrates seamlessly into automated production lines to uphold critical safety protocols. Guarded Machine Entry Points Provides a robust safety mechanism for doors, gates, and covers on industrial equipment. Robotics and Assembly Line Safety Crucial for safeguarding personnel interacting with robotic work cells and automated assembly processes. Why Choose? Uncompromised Operator Safety The 2 N.C. safety contacts ensure a dependable shutdown mechanism, significantly lowering accident risks. Flexible Integration The 90-degree actuator entry and compact design allow for simple installation in a variety of challenging industrial layouts. Longevity and Durability Constructed with a robust plastic housing, the 440K-E33041 is built to withstand the demanding conditions of industrial environments, minimizing downtime and replacement costs. Trusted Allen-Bradley Quality Benefit from the renowned reliability and engineering excellence synonymous with the Allen-Bradley brand, a leader in industrial automation and safety. Streamlined Cable Management The M16 conduit entry simplifies wiring, ensuring a neat and secure connection that maintains optimal performance. Cost-Effective Safety Solution Offers a high level of safety and durability at a competitive price point, providing excellent value for industrial safety investments. Order NowInvest in the superior safety and reliability of the Allen-Bradley 440K-E33041 Elf Tongue Interlock Safety Switch.FAQWhat is the primary function of the Allen-Bradley 440K-E33041?Its primary function is to provide machine guarding and prevent unauthorized access to hazardous operational zones by ensuring machinery remains secure when guards are open.What type of contacts does this safety switch have?It features dual Normally Closed (2 N.C.) safety contacts, providing fail-safe operation.Is this switch suitable for use in harsh industrial environments?Yes, it is designed with a high-durability plastic housing and is engineered to withstand the rigors of industrial operations.What does the 90-degree actuator entry mean for installation?The 90-degree actuator entry offers versatile installation options, accommodating various machine configurations and space constraints.How does this product contribute to cable management?It includes an M16 conduit entry, which facilitates secure and organized cable management, protecting wiring and ensuring signal integrity.

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PRODUCT DETAILS

Allen-Bradley 440K-E33041

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: 440K-E33041
  • Series: Elf Tongue Interlock Switch
  • Safety Contacts: 2 N.C. (Normally Closed)
  • Auxiliary Contacts: None
  • Actuator Entry Angle: 90 Degrees
  • Conduit Entry: M16
  • Housing Material: High-Strength Plastic
  • Brand: Allen-Bradley
  • Product Type: Tongue Interlock Switch

Applications

  • Comprehensive Machine Safety Interlocking

    Essential for preventing machine operation when safety guards are open or incorrectly closed.

  • Access Control for Hazardous Zones

    Regulates entry to dangerous areas, protecting operators from moving machinery or high-energy processes.

  • Conveyor System Protection

    Ensures the safe operation of conveyor lines by preventing access during maintenance or abnormal conditions.

  • Industrial Automation Safety Systems

    Integrates seamlessly into automated production lines to uphold critical safety protocols.

  • Guarded Machine Entry Points

    Provides a robust safety mechanism for doors, gates, and covers on industrial equipment.

  • Robotics and Assembly Line Safety

    Crucial for safeguarding personnel interacting with robotic work cells and automated assembly processes.

Why Choose the 440K-E33041?

  • Uncompromised Operator Safety

    The 2 N.C. safety contacts ensure a dependable shutdown mechanism, significantly lowering accident risks.

  • Flexible Integration

    The 90-degree actuator entry and compact design allow for simple installation in a variety of challenging industrial layouts.

  • Longevity and Durability

    Constructed with a robust plastic housing, the 440K-E33041 is built to withstand the demanding conditions of industrial environments, minimizing downtime and replacement costs.

  • Trusted Allen-Bradley Quality

    Benefit from the renowned reliability and engineering excellence synonymous with the Allen-Bradley brand, a leader in industrial automation and safety.

  • Streamlined Cable Management

    The M16 conduit entry simplifies wiring, ensuring a neat and secure connection that maintains optimal performance.

  • Cost-Effective Safety Solution

    Offers a high level of safety and durability at a competitive price point, providing excellent value for industrial safety investments.

Availability & Shipping

  • In stock: 440K-E33041 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 440K-E33041 ships with a 1-Year PALM Parts warranty and a 30-day return window.
SUPPORT

Frequently Asked Questions — Allen-Bradley

Its primary function is to provide machine guarding and prevent unauthorized access to hazardous operational zones by ensuring machinery remains secure when guards are open.

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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Independent Supplier Notice

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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PALM Parts Solution sells used surplus products. PALM Parts Solution is not an authorized distributor, affiliate, or representative for the brands we carry. Products sold by PALM Parts Solution come with PALM Parts Solution's 1-Year Warranty and do not come with the original manufacturer's warranty. Designated trademarks, brand names and brands appearing herein are the property of their respective owners. This website is not sanctioned or approved by any manufacturer or tradename listed.

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