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Allen-Bradley 440P-MALB22B safety limit switch with adjustable lever actuator

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Allen-Bradley 440P-MALB22B

by Allen-Bradley

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OverviewThe Allen-Bradley 440P-MALB22B is a high-performance safety limit switch, meticulously engineered to provide exceptional reliability and accuracy in safety-critical industrial applications. This sturdy device plays a crucial role in protecting both employees and equipment by guaranteeing strict adherence to safety protocols. It effectively prevents dangerous operations by precisely detecting positions and activating protective interlocks when safety guards or access points are compromised, or when specific machine positions are reached. Its durable construction and advanced contact setup make it an indispensable element for any industrial setting prioritizing operational safety and efficiency.Key Features Robust 30mm Metal Housing: Built to endure harsh industrial environments, ensuring prolonged performance and protection against physical impacts. Adjustable Lever Actuator: Offers superior flexibility in installation and application, enabling exact customization to suit various operational demands and sensing angles. 2 N.C. / 2 N.O. Contact Configuration: Provides adaptable electrical connection options for diverse safety circuit designs, accommodating both normally closed and normally open requirements. Break Before Make (BBM) Operation: Guarantees a secure and dependable switching sequence by ensuring the disconnection of one circuit before the establishment of another, preventing accidental contact overlap and improving safety. M20 Conduit Entry: Facilitates secure and standardized cable connections, ensuring robust electrical integrity and simplifying installation. Reliable Position Sensing: Delivers accurate and consistent detection of machine positions, ensuring dependable interlock functionality for enhanced safety. Compliance with Safety Standards: Engineered to meet rigorous global safety standards, guaranteeing optimal performance in critical safety applications. Technical Specifications Model: 440P-MALB22B Housing Material: 30mm Metal Actuator: Adjustable Lever Contact Configuration: 2 Normally Closed (N.C.) / 2 Normally Open (N.O.) Contact Operation: Break Before Make (BBM) Conduit Entry: M20 Brand: Allen-Bradley Product Type: Safety Limit Switch Applications Machine Guarding and Interlocks: Essential for securing access points to hazardous machinery, ensuring operations cease when guards are opened. Critical Position Sensing: Ideal for precise detection of various machine components in safety-related control systems. Monitoring of Doors, Gates, and Access Points: Provides reliable feedback on the open/closed status of protective barriers in industrial settings. Emergency Stop Systems Integration: Can be seamlessly integrated into emergency stop circuits to enhance overall system responsiveness and safety. Industrial Automation Safety Circuits: A vital component for building robust and compliant safety circuits across a wide range of automated processes. Why Choose?Uncompromising Safety: Designed specifically for safety-critical applications, the 440P-MALB22B offers assurance with its dependable interlock functionality and adherence to global safety standards. Exceptional Durability: The robust 30mm metal housing ensures extended operational life even in the most challenging industrial environments, reducing maintenance and replacement costs. Installation Versatility: The adjustable lever actuator simplifies installation and allows for flexible adaptation to various mechanical setups and sensing requirements. Precision and Reliability: With its Break Before Make (BBM) contact operation, this switch delivers precise and dependable switching, preventing electrical anomalies and enhancing system integrity. Seamless Integration: The M20 conduit entry ensures straightforward and secure electrical connections, facilitating easy integration into existing or new control systems. Trusted Allen-Bradley Quality: Benefit from the esteemed quality and engineering excellence of Allen-Bradley.Order NowElevate your industrial safety standards with the Allen-Bradley 440P-MALB22B Safety Limit Switch. Contact Palm Parts Solution today to place your order or request a quote.FAQWhat is a safety limit switch?A safety limit switch is a device that detects the position of machine parts or safety guards. When a specific position is reached or breached, it activates a safety function, such as stopping a machine, to prevent hazards.What does "Break Before Make" (BBM) mean?Break Before Make (BBM) is a contact operation where the switch ensures one circuit is fully disconnected before another is connected. This prevents brief short circuits or unintended contact overlap, enhancing safety in electrical systems.Can this switch be used in hazardous environments?The Allen-Bradley 440P-MALB22B features a robust 30mm metal housing, making it highly durable for demanding industrial environments. Please consult the product specifications and relevant safety standards for suitability in specific hazardous location classifications.

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PRODUCT DETAILS

Allen-Bradley 440P-MALB22B

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: 440P-MALB22B
  • Housing Material: 30mm Metal
  • Actuator: Adjustable Lever
  • Contact Configuration: 2 Normally Closed (N.C.) / 2 Normally Open (N.O.)
  • Contact Operation: Break Before Make (BBM)
  • Conduit Entry: M20
  • Brand: Allen-Bradley
  • Product Type: Safety Limit Switch

Applications

  • Machine Guarding and Interlocks: Essential for securing access points to hazardous machinery, ensuring operations cease when guards are opened.
  • Critical Position Sensing: Ideal for precise detection of various machine components in safety-related control systems.
  • Monitoring of Doors, Gates, and Access Points: Provides reliable feedback on the open/closed status of protective barriers in industrial settings.
  • Emergency Stop Systems Integration: Can be seamlessly integrated into emergency stop circuits to enhance overall system responsiveness and safety.
  • Industrial Automation Safety Circuits: A vital component for building robust and compliant safety circuits across a wide range of automated processes.

Why Choose the 440P-MALB22B?

Uncompromising Safety: Designed specifically for safety-critical applications, the 440P-MALB22B offers assurance with its dependable interlock functionality and adherence to global safety standards. Exceptional Durability: The robust 30mm metal housing ensures extended operational life even in the most challenging industrial environments, reducing maintenance and replacement costs. Installation Versatility: The adjustable lever actuator simplifies installation and allows for flexible adaptation to various mechanical setups and sensing requirements. Precision and Reliability: With its Break Before Make (BBM) contact operation, this switch delivers precise and dependable switching, preventing electrical anomalies and enhancing system integrity. Seamless Integration: The M20 conduit entry ensures straightforward and secure electrical connections, facilitating easy integration into existing or new control systems. Trusted Allen-Bradley Quality: Benefit from the esteemed quality and engineering excellence of Allen-Bradley.

Availability & Shipping

  • In stock: 440P-MALB22B 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 440P-MALB22B ships with a 1-Year PALM Parts warranty and a 30-day return window.
SUPPORT

Frequently Asked Questions — Allen-Bradley

A safety limit switch is a device that detects the position of machine parts or safety guards. When a specific position is reached or breached, it activates a safety function, such as stopping a machine, to prevent hazards.

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.

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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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