440R-P23071 ALLEN BRADLEY Safety Relay

Review ALLEN BRADLEY Series Safety Relay 24vdc 4w Msr22lm Used

The Allen-Bradley Model 440R-P23071 Safety Relay is a versatile and reliable safety component designed for applications where 24VDC power is available. This safety relay is part of the Rockwell Automation's 440R Series, which is known for its compact size, ease of use, and high performance.

The 440R-P23071 Safety Relay is rated for a contact set current of 4 amperes and a coil voltage of 24 volts DC. It is equipped with two normally open (NO) contacts and two normally closed (NC) contacts, each rated for 4 amperes of current. This makes it suitable for applications that require both protective functions and control functions.

The safety relay features an MSR22LM control unit, which provides a high level of safety integration. It is designed to comply with the functional safety standard IEC 61508 and the Performance Level e (PL e) category. This means that it can be used in safety-critical applications where the failure of a safety function could lead to personal injury or property damage.

The 440R-P23071 Safety Relay also includes built-in diagnostic capabilities, which help ensure that the safety functions are working properly. The relay provides output status indication through LEDs, as well as contact status indication through contact monitoring. These features make it easy to verify the status of the safety functions and troubleshoot any issues.

The compact size of the 440R-P23071 Safety Relay makes it ideal for use in tight spaces, while its rugged construction ensures that it can withstand the harsh industrial environment. It is designed to operate in temperatures ranging from -25 C to 70 C, making it suitable for use in a wide range of applications.

In summary, the Allen-Bradley Model 440R-P23071 Safety Relay is a high-performance, compact, and reliable safety component that is suitable for applications where 24VDC power is available. It is designed to comply with functional safety standards, provides built-in diagnostic capabilities, and is suitable for use in a wide range of industrial environments.

The Allen Bradley Model 440R-P23071 safety relay is a 24VDC, 4-output, MVR22LM type safety relay designed for use in machinery safety applications. Here are some pros and cons that might help you make an informed decision about purchasing this safety relay:

1. High reliability: Allen Bradley is a well-known brand in the automation industry, and their safety relays are known for their high reliability and robustness.

2. Versatile: The 440R-P23071 safety relay can be used in various safety applications, including emergency stop, safety interlock, and safety monitoring circuits.

3. Easy to configure: The relay comes with a built-in configuration software that makes it easy to set up and customize the safety functions.

4. Compact design: The relay has a compact size, making it suitable for installations where space is limited.

5. Redundancy: The safety relay can be used in redundant configurations, providing an additional layer of safety in critical applications.

1. Cost: The Allen Bradley safety relay is more expensive than some other brands and models.

2. Complexity: While the built-in configuration software makes it easy to set up, the safety relay itself has a more complex design than some other relays, which may require additional training for installation and maintenance.

3. Power consumption: The safety relay consumes more power than some other types of relays, which may increase the overall power consumption of the system.

In conclusion, the Allen Bradley Model 440R-P23071 safety relay is a reliable and versatile option for machinery safety applications. Its high reliability and ease of configuration make it a popular choice among automation professionals. However, its higher cost and increased power consumption may be drawbacks for some users. Ultimately, the decision to purchase this safety relay depends on the specific requirements of your application and your budget.

Based on the information provided, if you prioritize reliability and versatility in your safety applications, and you have the budget for it, then the Allen Bradley Model 440R-P23071 safety relay could be a good investment for you. However, if you are looking for a more cost-effective option, you may want to consider other brands and models.

Details:

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Ups 2 day air am. Allen Bradley 440R-P23071 series b safety relay, 24vdc, 4w, msr22lm. The cost of combined shipping depends on weight, location buyer and size box. Item is sold as pictured.

specifications genpurrelays:

• brand: Allen Bradley
• mpn: 440r-p23071
• part type: Safety

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• rating: 99.8%
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• availability: in stock
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• prices: $235.00–$445.00
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• started: september 3, 2025
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• category: Business & Industrial > Electrical Equipment Supplies > General Purpose Relays

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