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Allen Bradley Guardmaster Safety Relays 440R-M23143

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440R-M23143

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The 440R-M23143 from Allen Bradley is a safety relay designed for reliable control applications. It operates at a rated control supply voltage of 24 VDC and includes features for efficient electrical connections and quick response times.

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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-M23143

ManufacturerAllen Bradley
Product TypeSafety Relay
Product LineGuardmaster Safety Relays
Part Number440R-M23143
UPC611320826753
Weight0.75 lbs (0.34 kg)
Rated Control Supply Voltage24 VDC
Type of Electrical ConnectionScrew Connection
Power ON Delay1 ms
Input Resistance135 Ohm
Rated Thermal Current7A
Wire Size0.2 to 2.5 mm²
Switching Current10 mA
Rated Impulse Withstand Voltage2500 V
Response Time15 ms
Recovery Time100 ms
Time Delay Range0.15 s
IP ProtectionIP40
Enclosure TypeNEMA 1
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The Allen Bradley 440R-M23143 safety relay provides essential functions for controlling automated systems. It operates efficiently with a control supply voltage of 24 VDC and is equipped with screw connection terminals. Powering the relay incurs a minimal delay time of 1 millisecond, ensuring timely operation. Its input resistance is registered at 135 Ohms, making it compatible with various devices.

This relay supports a rated thermal current of 7 Amperes and allows wire sizes ranging from 0.2 to 2.5 mm². With a maximum switching current of 10 mA, it can effectively handle control signals. The device is built to withstand transient electrical surges with a rated impulse withstand voltage of 2500 Volts.

For operational reliability, the 440R-M23143 exhibits a quick response time of 15 milliseconds, which is essential for safety applications. Recovery from activation takes approximately 100 ms, while the adjustable time delay range spans from 0.15 seconds, allowing for fine-tuning to specific needs. This safety relay's enclosure meets an IP40 rating, providing basic dust protection, and conforms to NEMA 1 standards for indoor use. Overall, the 440R-M23143 offers a robust solution for safety control requirements in industrial settings.