849-NA3 ALLEN BRADLEY Pneumatic Timing Relay Nsmp

Review ALLEN BRADLEY Ser.a Pneumatic Timing Relay As Pictured Nsmp

The Allen-Bradley 849-NA3 Series A Pneumatic Timing Relay NSMP (Part Number: 849-NA3-SAA) is a versatile and reliable pneumatic timing device designed for use in various industrial automation applications. This timing relay is manufactured by Rockwell Automation, a leading provider of industrial automation and digital transformation solutions.

The 849-NA3 Series A Pneumatic Timing Relay NSMP is a single-pole, double-throw (SPDT) relay that operates on compressed air pressure. It features a compact size of 2.2 inches (55.9 mm) in length, 1.4 inches (35.6 mm) in width, and 1.0 inch (25.4 mm) in height, making it suitable for space-constrained installations. This timing relay can be mounted in any position, including vertical or horizontal, to accommodate various system designs.

This Allen-Bradley timing relay accepts a standard 1/4-28 UNF threaded pneumatic pilot valve or solenoid valve for air actuation. It has a rated coil voltage of 120 VAC, 240 VAC, or 24 VDC, depending on the specific application requirements. The coil resistance is 4.5 ohms, and the contact rating is 10 amps at 277VAC or 15 amps at 24VDC.

The 849-NA3 Series A Pneumatic Timing Relay NSMP offers a wide range of operating options, including adjustable contact delay times, adjustable contact spacing, and adjustable coil voltage. The contact delay times can be set between 0.5 milliseconds and 10 seconds, while the contact spacing ranges from 0.5 seconds to 10 seconds. This timing relay also offers a choice of normally open (NO) or normally closed (NC) contacts, depending on the specific application needs.

The Allen-Bradley 849-NA3 Series A Pneumatic Timing Relay NSMP is designed for long-term durability and reliability, with a rugged housing that can withstand harsh industrial environments. It is UL508 listed and conforms to CE and CSA standards, ensuring compliance with various global safety regulations.

In summary, the Allen-Bradley 849-NA3 Series A Pneumatic Timing Relay NSMP is a versatile and reliable timing device that offers a wide range of operating options, making it an excellent choice for various industrial automation applications. Its compact size, robust design, and compliance with various safety standards make it a reliable component for even the most demanding industrial systems.

The Allen-Bradley 849-NA3 Series A Pneumatic Timing Relay NSMP is a pneumatically operated electrical relay used for sequencing or time delay applications in industrial automation systems. Here are some pros and cons of buying this particular product:

1. High Reliability: Allen-Bradley is a well-known brand in the automation industry, and this product is no exception. It is designed to withstand harsh industrial environments and provide reliable operation.

2. Versatility: The 849-NA3 relay offers a wide range of timing options, from 0.1 to 999 seconds, making it suitable for various applications.

3. Easy Installation: The relay is designed for easy installation with a compact size and clear markings on the relay body.

4. Rugged Design: The relay is pneumatically operated, which makes it suitable for use in explosive atmospheres, as it does not require an electrical power source.

5. Cost-Effective: Compared to electric relays, pneumatic relays like the 849-NA3 can be more cost-effective in certain applications due to their simplicity and lack of electrical components.

1. Limited Functionality: The 849-NA3 is a simple timing relay and does not offer advanced features such as communication capabilities or programmability.

2. Requires Air Supply: The relay requires a constant air supply to operate, which can add to the overall system complexity and cost.

3. Limited Timing Range: While the relay offers a wide range of timing options, it may not be suitable for very short or very long timing applications.

4. Maintenance: The relay may require occasional maintenance to ensure proper air supply and operation.

The Allen-Bradley 849-NA3 Series A Pneumatic Timing Relay NSMP is a reliable and versatile product suitable for various industrial automation applications that require sequencing or time delay functions. Its rugged design and ease of installation make it an attractive option for harsh environments, and its cost-effectiveness can make it a more economical choice compared to electric relays. However, it may not be suitable for applications that require advanced functionality or very short or very long timing ranges.

If you are looking for a reliable and cost-effective solution for sequencing or time delay applications in harsh industrial environments, the Allen-Bradley 849-NA3 Series A Pneumatic Timing Relay NSMP is a good choice. However, if you require advanced functionality or very short or very long timing ranges, you may want to consider other options such as electric relays or programmable logic controllers.

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specifications genpurrelays:

• brand: Allen Bradley
• mpn: 849-na3
• part type: Pneumatic Timing

offer genpurrelays:

• started: march 15, 2026
• options: ship-to-home
• sold #: 8
• in stock #: 1
• price: $51.00
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• availability: in stock

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• category: Business & Industrial > Electrical Equipment Supplies > General Purpose Relays

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