849A-Z0D25 ALLEN-BRADLEY Pneumatic Timing Relay

Review ALLEN-BRADLEY Series Pneumatic Timing Relay

The Allen-Bradley 849A-Z0D25 Pneumatic Timing Relay 1WS3 is a versatile and reliable automation component designed for precise timing control in industrial applications. This pneumatic relay offers a compact design, making it suitable for installation in confined spaces or applications where a compact solution is desired.

The 849A-Z0D25 is a single-pole, double-throw (SPDT) relay, which means it can switch one contact from one position to another based on pneumatic input. It features two normally open (NO) contacts that can be configured to make or break based on the relay's operating status. The relay's contacts can handle a maximum voltage of 277V AC and up to 30A of current.

The timing function of this relay is adjustable through the use of a potentiometer, providing precise control over the actual time delay. The adjustment range for the delay is from 0.05 seconds to 99.95 seconds, allowing for a wide range of applications and customization to specific process requirements.

This Allen-Bradley pneumatic timing relay is designed for rugged industrial use, with a operating temperature range of -40 C to 65 C (-40 F to 149 F) and an operating humidity range of 0% to 95% non-condensing. The relay's housing is constructed of die-cast aluminum, providing excellent protection against harsh environments and ensuring long-lasting reliability.

The 849A-Z0D25 is easy to install and integrate into existing control systems, as it is compatible with a wide range of Allen-Bradley and Rockwell Automation components and control platforms. It also features a built-in test (BIT) feature, which allows for easy verification of proper function and wiring during installation.

In summary, the Allen-Bradley 849A-Z0D25 Pneumatic Timing Relay 1WS3 is a durable, versatile, and precise solution for timing control in industrial applications. Its rugged construction, adjustable delay, and compatibility with various control systems make it an ideal choice for a wide range of automation applications.

The Allen-Bradley 849A-Z0D25 pneumatic timing relay 1WS3 is a pneumatic device used for controlling electrical circuits based on time or pressure. Like any other electrical or pneumatic component, it comes with its own set of advantages and disadvantages. Let's explore both sides.

1. Versatility: The Allen-Bradley 849A-Z0D25 pneumatic timing relay can be used in various industries, including manufacturing, process control, and automation. It can handle a wide range of input pressures and can be configured to control multiple outputs.

2. Reliability: Pneumatic components are generally more reliable than their electronic counterparts in harsh environments. They do not generate electromagnetic interference and are less susceptible to electrical surges.

3. Ease of use: Pneumatic components are easy to install, operate, and maintain. They do not require any electrical power for normal operation and can be easily integrated into existing pneumatic systems.

4. Safety: Pneumatic components are safer to use than their electronic counterparts in hazardous environments. They do not generate sparks or radiation and are less likely to cause electrical shocks.

1. Limited functionality: Pneumatic components cannot perform the same functions as electronic components. They cannot process complex logic or perform computations.

2. Limited response time: Pneumatic components have a slower response time compared to electronic components. This can be a disadvantage in applications that require quick response times.

3. Maintenance: Pneumatic components require regular maintenance to ensure proper functioning. They can leak air, which can affect the performance of the system.

4. Cost: Pneumatic components can be more expensive than electronic components in terms of initial cost and maintenance.

The Allen-Bradley 849A-Z0D25 pneumatic timing relay 1WS3 is a reliable and versatile component that can be used in various industries for controlling electrical circuits based on time or pressure. However, it has some limitations, such as limited functionality, slower response time, and higher maintenance requirements compared to electronic components. The decision to use this component depends on the specific application requirements, environmental conditions, and cost considerations.

If the application requires quick response times, complex logic, or low maintenance costs, an electronic timing relay or solid-state relay may be a better choice. However, if the application is in a harsh environment, requires reliability, and can tolerate a slower response time, the Allen-Bradley 849A-Z0D25 pneumatic timing relay 1WS3 is a good option. It is recommended to consult with a qualified automation engineer or supplier to determine the best solution for a specific application.

Details:

Mounting style: surface or din rail mountable depending on base used. Contact rating: 10a 600v ac. Control voltage : 120v ac verify per part number suffix; z0 usually indicates zero timing at energize. This item may or not be in original packaging.

Catalog number: 849A-Z0D25. Please note: this item is used and may have minor marks, scratches, dents, scuffs, brother cosmetic defects, as typical for. Pleases the photos. Operation: time-delay on de-energizing off delay.

Country of manufacture: USA. Enclosure type: open type, typically used in enclosed control panels. Type: pneumatic timing relay. Function: provides time delay for controlling circuits without the need electronics.

Contact configuration: double pole throw DPT. Of Allen Bradley 849A-Z0D25 series b pneumatic timing relay: manufacturer: Allen-Bradley Rockwell automation. We power items up if applicable and test for basic functionality.

specifications genpurrelays:

• brand: Allen-bradley
• mpn: 849a-z0d25
• mounting style: Surface Din Rail Mounting
• maximum amperage: 10 A
• number of phases: Single-phase Or Three-phase Circuits, Depending On How Its Wired
• suitable for: Interior
• current type: Ac
• type: Pneumatic Timing Relay
• coil voltage: 600 V
• contact material: Silver Cadmium Oxide
• number of pins: 11
• features: High Contact Rating, Pneumatic Timing Mechanism, No External Power Supply Required For Timing
• country/region of manufacture: United States
• application: Commercial, Industrial

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• policy: no returns

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• rating: 100.0%
• city: plainfield, illinois
• # reviews: 98

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offer genpurrelays:

• availability: in stock
• prices: $120.00–$400.00
• item condition:
  • Used
  • New – Open box
  • Like New
  • New
• best offers: true
• started: june 16, 2025
• sold #: 21
• in stock #: 5
• options: ship-to-home

general genpurrelays:

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

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• transit: 3-8 days
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