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Allen Bradley Guardmaster Safety Relays 440R-N23126

Product image is representative; revision or series may vary. Contact us to request a specific version.

440R-N23126

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The 440R-N23126 safety relay from Allen Bradley is engineered to meet various safety needs in industrial applications. It operates at both 24V AC and DC with a versatile reset mechanism allowing for automatic or manual resetting.

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Ships from Raleigh, NC
2 Year DO Supply Warranty
Not an Authorized Distributor: DO Supply is not an authorized distributor for listed manufacturers or tradenames and therefore the manufacturer's warranty does not apply. All of our products come with DO Supply's 2-year warranty.
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Rockwell Disclaimer: The product is used surplus. DO Supply is not an authorized surplus dealer or affiliate for the Manufacturer of this product. The product may have older date codes or be an older series than that available direct from the factory or authorized dealers. Because DO Supply is not an authorized distributor of this product, the Original Manufacturer's warranty does not apply. While many Allen-Bradley PLC products will have firmware already installed, DO Supply makes no representation as to whether a PLC product will or will not have firmware and, if it does have firmware, whether the firmware is the revision level that you need for your application. DO Supply also makes no representations as to your ability or right to download or otherwise obtain firmware for the product from Rockwell, its distributors, or any other source. DO Supply also makes no representations as to your right to install any such firmware on the product. DO Supply will not obtain or supply firmware on your behalf. It is your obligation to comply with the terms of any End-User License Agreement or similar document related to obtaining or installing firmware.

Technical specifications for 440R-N23126

ManufacturerAllen Bradley
Product TypeSafety Relay
Product LineGuardmaster Safety Relays
Part Number440R-N23126
Weight0.56 lbs (0.26 kg)
Rated Voltage (AC)24V AC
Rated Voltage (DC)24V DC
Reset TypeAuto./Manual reset
Terminal TypeFixed Terminals
Auxiliary Outputs1 N.C.
Safety Outputs3 N.O.
Input Contact1 N.C., 2 N.C., Light Curtain
Minimum Operating Temperature Rating0 °C
Maximum Operating Temperature Rating40 °C
Maximum Operating Humidity80% (Non-Condensing)
Maximum Storage Humidity80% (Non-Condensing)
Maximum Operating Altitude1000 MSL
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The Allen Bradley 440R-N23126 is a safety relay that provides critical functionality in safeguarding control systems. It operates with a rated voltage of 24V AC or DC, ensuring compatibility with various electrical supply systems. This relay is designed for maximum safety and includes automatic and manual reset capabilities, offering flexibility in operation during maintenance or power cycling scenarios.

Auxiliary outputs consist of one normally closed (N.C.) contact, while the relay is equipped with three normally open (N.O.) contacts serving safety functions. Input capabilities allow connection to one normally closed (N.C.) input, two N.C. contacts, or a light curtain, enabling integration with additional safety devices.

Operating conditions for the relay include a minimum ambient temperature of 0 °C, with a maximum limit of 40 °C under normal use. It tolerates humidity levels of 80% in both operational and storage environments, ensuring reliable performance without condensation issues. Furthermore, the relay can operate at altitudes of up to 1000 meters above sea level, making it suitable for a variety of installations and applications.