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Allen-Bradley 440R-N23126 MSR127T Minotaur Safety Relay for industrial safety systems

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Allen-Bradley 440R-N23126

by Allen-Bradley

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OverviewThe Allen-Bradley 440R-N23126 MSR127T Minotaur Safety Relay is a vital component for contemporary industrial safety and automation setups. Crafted by Allen-Bradley, a recognized leader in industrial control solutions, this safety relay offers crucial protection by guaranteeing instant and dependable system shutdown during emergencies. Designed to fulfill Stop Category 0 needs, it ensures that power is removed without delay, thereby protecting both personnel and equipment. Its compact 22.5mm form factor makes it perfect for effortless integration into diverse control panels, optimizing space without compromising performance. Operating on a flexible 24V AC/DC power supply, the 440R-N23126 provides extensive compatibility and simplifies installation in various industrial settings. This relay supports multiple input configurations, including 1 Normally Closed (N.C.), 2 N.C., and light curtain inputs, offering exceptional adaptability for incorporating different safety devices. With three Normally Open (N.O.) safety outputs and one Normally Closed (N.C.) auxiliary output, the MSR127T Minotaur delivers robust command over essential safety functions and provides valuable feedback for system monitoring. This safety relay underscores Allen-Bradley's dedication to advanced industrial safety, providing unparalleled assurance for operators and facility managers.Key Features Stop Category 0 Relay Guarantees immediate and uncontrolled power removal, providing the highest level of machinery safety and rapid emergency shutdown in critical situations. 24V AC/DC Power Supply Offers flexible power compatibility, simplifying integration into a broad array of industrial electrical systems and streamlining installation. Multiple Input Configurations Supports 1 N.C., 2 N.C., and light curtain inputs, allowing for flexible connection options for various safety devices like emergency stops, gate switches, and optical barriers. 3 N.O. Safety Outputs Provides secure and reliable management of safety-related machinery, enabling safe stopping or halting of operations when a safety function is activated. 1 N.C. Auxiliary Output Delivers critical system status and feedback, allowing for effective monitoring and diagnostic integration into control systems without impacting safety functions. Fixed Terminals Engineered for simple and secure wiring, improving installation efficiency and ensuring robust electrical connections within industrial panels. 22.5mm Compact Case Design Maximizes space utilization within control cabinets, permitting high-density installations and making it suitable for applications where panel space is at a premium. Technical SpecificationsModel: 440R-N23126Series: MSR127T MinotaurFunction: Stop Category 0 Safety RelayPower Supply: 24V AC/DCInputs: 1 N.C., 2 N.C., Light CurtainSafety Outputs: 3 N.O.Auxiliary Outputs: 1 N.C.Terminal Type: FixedCase Width: 22.5mmApplications Emergency Stop Systems Essential for safeguarding machinery and personnel by providing immediate power cut-off in critical emergency situations. Machine Guarding Integration Seamlessly integrates with physical guards, interlock switches, and light curtains to prevent access to hazardous areas during operation. Industrial Automation and Process Safety Crucial for ensuring the safe operation of automated production lines, robotics, and complex industrial processes. Electrical Panels and Safety Control Systems A core component for building robust and compliant safety circuits within industrial control cabinets and panels. Material Handling Equipment Enhances the safety features of conveyors, robotic arms, and automated guided vehicles (AGVs) by providing reliable emergency stop functionality. Why Choose?Uncompromising SafetyThe Stop Category 0 functionality guarantees the highest level of safety, providing immediate machine shutdown to protect operators and prevent accidents.Versatile CompatibilityWith its 24V AC/DC power supply and multiple input options, this relay seamlessly integrates into diverse industrial electrical systems and safety setups.Space-Saving DesignThe compact 22.5mm form factor is ideal for high-density control panel installations, maximizing space efficiency without sacrificing performance.Reliable FeedbackThe auxiliary output provides critical system status for monitoring and diagnostics, enhancing overall operational awareness.Trusted BrandAllen-Bradley is a world-renowned leader in industrial automation, ensuring quality, reliability, and support for your safety solutions.Order NowElevate your industrial safety standards with the Allen-Bradley 440R-N23126 MSR127T Minotaur Safety Relay. Contact us today to place your order or to learn more about our comprehensive safety solutions.FAQWhat does "Stop Category 0" mean for this safety relay?Stop Category 0 indicates an uncontrolled stop where power to machine actuators is removed immediately. This ensures the fastest possible shutdown in an emergency, offering maximum safety.Can this relay be used with various safety devices?Yes, its support for 1 N.C., 2 N.C., and light curtain inputs allows for integration with a wide array of safety devices, including emergency stop buttons, gate switches, and safety light curtains.Is the 440R-N23126 MSR127T suitable for tight spaces?Absolutely. Its compact 22.5mm width is specifically designed for space optimization within industrial control cabinets, making it excellent for high-density applications.How does the auxiliary output help in system monitoring?The 1 N.C. auxiliary output provides non-safety-related status signals, which can be used to monitor the relay's operational state within the control system without affecting safety functions.What power supply is required for this safety relay?The Allen-Bradley 440R-N23126 MSR127T operates on a versatile 24V AC/DC power supply, making it compatible with many industrial electrical systems.

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PRODUCT DETAILS

Allen-Bradley 440R-N23126

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: 440R-N23126
Series: MSR127T Minotaur
Function: Stop Category 0 Safety Relay
Power Supply: 24V AC/DC
Inputs: 1 N.C., 2 N.C., Light Curtain
Safety Outputs: 3 N.O.
Auxiliary Outputs: 1 N.C.
Terminal Type: Fixed
Case Width: 22.5mm

Applications

  • Emergency Stop Systems

    Essential for safeguarding machinery and personnel by providing immediate power cut-off in critical emergency situations.

  • Machine Guarding Integration

    Seamlessly integrates with physical guards, interlock switches, and light curtains to prevent access to hazardous areas during operation.

  • Industrial Automation and Process Safety

    Crucial for ensuring the safe operation of automated production lines, robotics, and complex industrial processes.

  • Electrical Panels and Safety Control Systems

    A core component for building robust and compliant safety circuits within industrial control cabinets and panels.

  • Material Handling Equipment

    Enhances the safety features of conveyors, robotic arms, and automated guided vehicles (AGVs) by providing reliable emergency stop functionality.

Why Choose the 440R-N23126?

Uncompromising Safety

The Stop Category 0 functionality guarantees the highest level of safety, providing immediate machine shutdown to protect operators and prevent accidents.

Versatile Compatibility

With its 24V AC/DC power supply and multiple input options, this relay seamlessly integrates into diverse industrial electrical systems and safety setups.

Space-Saving Design

The compact 22.5mm form factor is ideal for high-density control panel installations, maximizing space efficiency without sacrificing performance.

Reliable Feedback

The auxiliary output provides critical system status for monitoring and diagnostics, enhancing overall operational awareness.

Trusted Brand

Allen-Bradley is a world-renowned leader in industrial automation, ensuring quality, reliability, and support for your safety solutions.

Availability & Shipping

  • In stock: 440R-N23126 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 440R-N23126 ships with a 1-Year PALM Parts warranty and a 30-day return window.
SUPPORT

Frequently Asked Questions — Allen-Bradley

Stop Category 0 indicates an uncontrolled stop where power to machine actuators is removed immediately. This ensures the fastest possible shutdown in an emergency, offering maximum safety.

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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