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Allen-Bradley 440P-MDPS11B Safety Limit Switch with dome plunger actuator

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Allen-Bradley 440P-MDPS11B

by Allen-Bradley

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OverviewThe Allen-Bradley 440P-MDPS11B is a high-performance safety limit switch crafted for demanding industrial settings. This device provides dependable and precise position detection, essential for a wide range of safety functions, maintaining operational integrity and protecting personnel. Constructed with a robust 30mm metal housing, it endures harsh conditions, making it an excellent choice for machinery needing strong and consistent safety interlocks. Its dome plunger actuator offers adaptable and accurate recognition, while the snap-acting contacts (1 N.C. and 1 N.O.) provide flexible and reliable switching capabilities within safety circuits. The M20 conduit connection simplifies installation, adhering to industry codes. Furthermore, the positive opening operation guarantees that the normally closed contact reliably opens when activated, a crucial feature for meeting strict safety standards. You can trust the Allen-Bradley 440P-MDPS11B for unmatched safety and enduring performance.Key Features Sturdy 30mm Metal Enclosure: Designed for exceptional resilience and protection against impacts and environmental factors in challenging industrial areas, ensuring extended service life. Accurate Dome Plunger Actuator: Delivers precise and consistent position sensing, suitable for various mechanical tasks and movement patterns. Flexible 1 N.C. and 1 N.O. Contacts: Provides adaptable integration into diverse safety control setups, offering both normally closed and normally open switching capabilities. Dependable Snap-Acting Mechanism: Guarantees instant and repeatable contact switching, improving the responsiveness and safety of your equipment. Standard M20 Conduit Connection: Facilitates easy and secure electrical wiring, ensuring compliance with industrial installation guidelines and reducing setup time. Positive Opening Function: A vital safety characteristic that ensures the direct and reliable opening of the normally closed contact upon activation, even with contact welding, enhancing operator protection. Technical SpecificationsThe Allen-Bradley 440P-MDPS11B is carefully designed with the following technical specifications to meet rigorous industrial safety standards: Product Category: Safety Limit Switch Model Number: 440P-MDPS11B Enclosure Material: High-Strength Metal Actuator Type: Dome Plunger Contacts: 1 Normally Closed (N.C.), 1 Normally Open (N.O.) Contact Style: Snap Acting Conduit Connection: M20 Safety Feature: Positive Opening Operation ApplicationsThe adaptability and robust design of the Allen-Bradley 440P-MDPS11B make it an indispensable component across various industrial safety applications: Machinery Guarding: Essential for interlocking safety gates and access panels, preventing machine operation when guards are open. Safety Gate Interlocks: Provides critical feedback for ensuring gates are securely closed before machine startup, protecting personnel from moving parts. Position Detection in Safety Systems: Accurately senses the position of machine components, triggering safety functions based on predefined states. Conveyor Installations: Utilized for emergency stops, belt misalignment detection, and ensuring proper material flow and worker safety. Packaging Equipment: Integrates into safety control systems to monitor door closures, component positioning, and other crucial safety stages. Why Choose This Model?The Allen-Bradley 440P-MDPS11B stands out as an excellent choice for your safety requirements due to several compelling advantages: Consistent Reliability: Manufactured by Allen-Bradley, a leader in industrial automation, ensuring steady performance and a long operational lifespan. Enhanced Safety Attributes: The positive opening function is a crucial compliance aspect, offering superior protection compared to standard switches. Robust Construction: The durable metal housing is specifically engineered to withstand the rigors of harsh industrial environments, reducing maintenance. Order NowOptimize your industrial safety protocols with the Allen-Bradley 440P-MDPS11B Safety Limit Switch. Contact Palm Parts Solution today to place your order and ensure the highest level of protection for your operations.FAQWhat is the primary function of the Allen-Bradley 440P-MDPS11B?The 440P-MDPS11B is a safety limit switch designed to provide reliable and precise position sensing in industrial environments, crucial for various safety applications and protecting personnel.What kind of actuator does this safety switch use?This safety switch utilizes a dome plunger actuator, which offers versatile and accurate detection for different mechanical applications.What is the significance of the positive opening operation feature?The positive opening operation guarantees that the normally closed contact reliably opens when actuated, even in conditions of contact welding, which is a critical safety feature for compliance with stringent regulations.In what types of environments can this switch be used?With its durable 30mm metal housing, the 440P-MDPS11B is engineered for demanding industrial environments and can withstand harsh conditions.Does this safety switch meet industrial installation standards?Yes, the M20 conduit connection simplifies installation and adheres to industry standards, ensuring easy and secure electrical wiring.

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$2,290.00
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PRODUCT DETAILS

Allen-Bradley 440P-MDPS11B

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

The Allen-Bradley 440P-MDPS11B is carefully designed with the following technical specifications to meet rigorous industrial safety standards:

  • Product Category: Safety Limit Switch
  • Model Number: 440P-MDPS11B
  • Enclosure Material: High-Strength Metal
  • Actuator Type: Dome Plunger
  • Contacts: 1 Normally Closed (N.C.), 1 Normally Open (N.O.)
  • Contact Style: Snap Acting
  • Conduit Connection: M20
  • Safety Feature: Positive Opening Operation

Applications

The adaptability and robust design of the Allen-Bradley 440P-MDPS11B make it an indispensable component across various industrial safety applications:

  • Machinery Guarding: Essential for interlocking safety gates and access panels, preventing machine operation when guards are open.
  • Safety Gate Interlocks: Provides critical feedback for ensuring gates are securely closed before machine startup, protecting personnel from moving parts.
  • Position Detection in Safety Systems: Accurately senses the position of machine components, triggering safety functions based on predefined states.
  • Conveyor Installations: Utilized for emergency stops, belt misalignment detection, and ensuring proper material flow and worker safety.
  • Packaging Equipment: Integrates into safety control systems to monitor door closures, component positioning, and other crucial safety stages.

Why Choose the 440P-MDPS11B?

The Allen-Bradley 440P-MDPS11B stands out as an excellent choice for your safety requirements due to several compelling advantages:

  • Consistent Reliability: Manufactured by Allen-Bradley, a leader in industrial automation, ensuring steady performance and a long operational lifespan.
  • Enhanced Safety Attributes: The positive opening function is a crucial compliance aspect, offering superior protection compared to standard switches.
  • Robust Construction: The durable metal housing is specifically engineered to withstand the rigors of harsh industrial environments, reducing maintenance.

Availability & Shipping

  • In stock: 440P-MDPS11B 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-MDPS11B ships with a 1-Year PALM Parts warranty and a 30-day return window.
SUPPORT

Frequently Asked Questions — Allen-Bradley

The 440P-MDPS11B is a safety limit switch designed to provide reliable and precise position sensing in industrial environments, crucial for various safety applications and protecting personnel.

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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