440R-N23126 | Allen-Bradley CAT 4 Safety Relay with 3 Safety Outputs and 24V AC/DC Operation
440R-N23126 | Allen-Bradley CAT 4 Safety Relay with 3 Safety Outputs and 24V AC/DC Operation
440R-N23126 | Allen-Bradley CAT 4 Safety Relay with 3 Safety Outputs and 24V AC/DC Operation
    440R-N23126 | Allen-Bradley CAT 4 Safety Relay with 3 Safety Outputs and 24V AC/DC Operation
440R-N23126 | Allen-Bradley CAT 4 Safety Relay with 3 Safety Outputs and 24V AC/DC Operation

440R-N23126 | Allen-Bradley CAT 4 Safety Relay with 3 Safety Outputs and 24V AC/DC Operation

Part #: 440R-N23126 Manufactured by: Allen-Bradley
Regular price
$265.00
Sale price
$265.00
Regular price
4 in Stock
Condition: New – Open box
Shipping calculated at checkout.
Product Overview
"Allen-Bradley 440R-N23126 Safety Relay MSR127T Minotaur, Stop Category 0 Relay, 24V AC/DC Supply Voltage, Inputs: 1 N.C.,...  Read more
We accept:
  • American Express
  • Apple Pay
  • Diners Club
  • Discover
  • Google Pay
  • Mastercard
  • PayPal
  • Shop Pay
  • Visa
Contact Us!

Talk to a real expert.

Mon–Sat, 7:00 AM – 8:00 PM (EST)
warranty
IQElectro 2-Year Warranty
Warranty for Product #: 440R-N23126
IQElectro offers a free 2-year warranty on all products. You can trust that every purchase is a reliable investment in the future of your company. Warranty Terms
2-3 Day Free Shipping
Packed Ready to Ship
24/7 Expert Support
Return within 30-Days
IQElectro BBB Business Review
IQElectro is Not an authorized distributor for Allen-Bradley
Original Manufacturer's Warranty Not Covered, This Product is SURPLUS.

Product Description P/N: 440R-N23126

Description / Specifications

Description 

The Allen-Bradley 440R-N23126 is a compact safety relay designed to monitor safety inputs and control shutdown functions in industrial machinery. This relay provides three redundant safety outputs and supports both automatic and manual reset modes for flexible system configuration. The 440R-N23126 is built to enhance machine safety performance in applications such as light curtains, emergency stops, and safety interlock systems.

 

 

Technical Specifications 

Condition New/Never Used Surplus
Brand Allen-Bradley
Category Relays
Part Number 440R-N23126
Subcategory Safety Relays
Series MSR127T
Range Minotaur
Supply Voltage 24 V AC/DC
Number of Channels 2
Safety Contacts 3 N.O.
Auxiliary Contacts 1 N.C.
Reset Method Automatic & Manual
Function Light beam/curtain monitoring
Mounting Type 35 mm DIN rail
Terminal Type Screw terminals
Housing Width 22.5 mm
Length 114.5 mm
Width 99 mm
Depth 22.5 mm
Enclosure Rating IP40 (NEMA 1)
Terminal Protection IP20
Operating Temperature -5 to +55 °C
Impulse Withstand Voltage 2500 V
Weight 0.23 kg

 

 

Information About 440R-N23126

The 440R-N23126 is a single-function relay from the Allen-Bradley Minotaur MSR127T series, designed for integration within safety circuits requiring reliable fault monitoring. Its fixed-terminal construction and 22.5 mm housing width allow efficient installation on a standard 35 mm DIN rail. With compatibility for 24 V AC/DC systems and support for both automatic and manual reset, it suits a range of industrial control environments. The unit incorporates advanced safety technologies, including CAT 4-rated circuitry, providing dependable protection for machine operators and equipment.

Key Features:

  • CAT 4 Safety Rating: Provides high-level protection for machinery requiring stringent safety compliance.
  • Three Safety Outputs: Offers 3 N.O. safety contacts for reliable control of critical stop functions.
  • Auxiliary Monitoring Output: Includes 1 N.C. auxiliary contact for system feedback or status indication.
  • Automatic/Manual Reset: Supports configurable reset modes for different safety circuit requirements.
  • DIN Rail Mounting: Designed for 35 mm DIN rail installation for quick and secure panel integration.
  • 24 V AC/DC Supply Compatibility: Operates on standard low-voltage control systems for broad applicability.
  • Fixed Terminal Design: Ensures stable wiring connections in demanding industrial environments.
  • Compact Housing: Slim 22.5 mm width reduces panel space usage.

The 440R-N23126 delivers the reliability and precision required for safe machine control and fault monitoring applications.

Frequently Asked Questions about 440R-N23126
Question: What is the Allen-Bradley 440R-N23126 safety relay used for?
Date Update:13/06/2025
Answer:

The 440R-N23126 is a safety relay from the MSR127T series by Allen-Bradley, designed to monitor and control safety functions in industrial environments. It supports applications such as light curtains, safety mats, emergency stops, and magnetic switches to ensure personnel and equipment safety. With three normally open safety contacts and one normally closed auxiliary contact, it allows seamless integration into a safety control circuit. This model is CAT 4 rated, making it compliant with high-risk machine safety applications. Its dual-channel configuration provides redundancy and fault detection.

Question: How does the MSR127T safety relay support automatic and manual reset?
Date Update:13/06/2025
Answer:

The MSR127T relay supports both reset methods to accommodate different safety scenarios:

  • Automatic reset: Automatically restarts the system when safety conditions are met again.
  • Manual reset: Requires human confirmation (e.g., button press) before restarting after a fault or stop.

This flexibility allows tailoring to specific industrial needs, ensuring safe and controlled reactivation of machines. The dual-mode reset ensures a balance between safety and operational efficiency.

Question: What types of devices can be connected to the 440R-N23126 relay?
Date Update:13/06/2025
Answer:

This safety relay is designed to work with a variety of safety input devices. The following devices can be connected:

  • Emergency stop push-buttons
  • Safety light curtains
  • Safety mats
  • Interlock switches
  • Magnetic safety sensors

The 440R-N23126 supports these devices through its dual-channel configuration, enabling reliable fault detection and increased machine safety.

Question: What is the maximum switching capacity of the 440R-N23126 contacts?
Date Update:13/06/2025
Answer:

The safety relay features robust contact specifications for switching safety-related loads:

  • Safety contacts (3NO): Rated for up to 6A at 24V DC or 250V AC
  • Auxiliary contact (1NC): Suitable for signaling or fault indication
  • Impulse withstand voltage: 2.5 kV

These parameters ensure reliable contact performance in high-demand safety control circuits.

Question: Is the 440R-N23126 still in production?
Date Update:13/06/2025
Answer:

Yes, the 440R-N23126 is currently in active production according to Rockwell Automation. It remains a widely used safety relay for industrial applications and is recommended for new installations where high-reliability safety logic is required.

IQElectro is not an authorized distributor.
IQElectro LLC (IQElectro) is NOT an Authorized Distributor or in any way affiliated with Rockwell Automation, Siemens, or any other Manufacturers. IQElectro is NOT an Authorized Dealer of this product. The product may be of older version, date codes, or design than that available from authorized dealers. As IQElectro is not an authorized dealer of this product, the Original Manufacturer's Warranty and Support DO NOT apply. IQElectro sells SURPLUS only and DOES NOT SELL SOFTWARE or FIRMWARE licenses For more detailed information, please refer to the full version of our disclaimer policy Disclaimer Policy.
Description / Specifications

Description 

The Allen-Bradley 440R-N23126 is a compact safety relay designed to monitor safety inputs and control shutdown functions in industrial machinery. This relay provides three redundant safety outputs and supports both automatic and manual reset modes for flexible system configuration. The 440R-N23126 is built to enhance machine safety performance in applications such as light curtains, emergency stops, and safety interlock systems.

 

 

Technical Specifications 

Condition New/Never Used Surplus
Brand Allen-Bradley
Category Relays
Part Number 440R-N23126
Subcategory Safety Relays
Series MSR127T
Range Minotaur
Supply Voltage 24 V AC/DC
Number of Channels 2
Safety Contacts 3 N.O.
Auxiliary Contacts 1 N.C.
Reset Method Automatic & Manual
Function Light beam/curtain monitoring
Mounting Type 35 mm DIN rail
Terminal Type Screw terminals
Housing Width 22.5 mm
Length 114.5 mm
Width 99 mm
Depth 22.5 mm
Enclosure Rating IP40 (NEMA 1)
Terminal Protection IP20
Operating Temperature -5 to +55 °C
Impulse Withstand Voltage 2500 V
Weight 0.23 kg

 

 

Information About 440R-N23126

The 440R-N23126 is a single-function relay from the Allen-Bradley Minotaur MSR127T series, designed for integration within safety circuits requiring reliable fault monitoring. Its fixed-terminal construction and 22.5 mm housing width allow efficient installation on a standard 35 mm DIN rail. With compatibility for 24 V AC/DC systems and support for both automatic and manual reset, it suits a range of industrial control environments. The unit incorporates advanced safety technologies, including CAT 4-rated circuitry, providing dependable protection for machine operators and equipment.

Key Features:

  • CAT 4 Safety Rating: Provides high-level protection for machinery requiring stringent safety compliance.
  • Three Safety Outputs: Offers 3 N.O. safety contacts for reliable control of critical stop functions.
  • Auxiliary Monitoring Output: Includes 1 N.C. auxiliary contact for system feedback or status indication.
  • Automatic/Manual Reset: Supports configurable reset modes for different safety circuit requirements.
  • DIN Rail Mounting: Designed for 35 mm DIN rail installation for quick and secure panel integration.
  • 24 V AC/DC Supply Compatibility: Operates on standard low-voltage control systems for broad applicability.
  • Fixed Terminal Design: Ensures stable wiring connections in demanding industrial environments.
  • Compact Housing: Slim 22.5 mm width reduces panel space usage.

The 440R-N23126 delivers the reliability and precision required for safe machine control and fault monitoring applications.

Check Out These Related Products