Allen-Bradley 849A-ZOH24 is a Bulletin 849A pneumatic timing relay providing on-delay timing functions. This DIN rail mountable timer features a 0.2 to 60 second adjustable range and operates with a 24V AC/DC coil voltage. It is designed for industrial control applications requiring precise, repeatable time delays in motor control circuits, sequencing, and process automation.

Time-Delay Relays The **Allen Bradley 849A-ZOH24 Pneumatic Timer** is a high-performance time-delay relay designed specifically for industrial automation applications. This reliable component is essential for automating control processes and ensuring precise timing in various electrical systems. ## Key Features • **Voltage Rating:** Operates at 24V DC, making it suitable for a wide range of applications in low-voltage environments. • **Timing Range:** Adjustable timing from 0.5 to 60 seconds, allowing for precise control over operational delays. • **Pneumatic Actuation:** Utilizes pneumatic technology for reliable performance and reduced wear, enhancing longevity. • **Compact Design:** Space-saving dimensions enable easy integration into existing systems without requiring significant modifications. • **Durable Construction:** Built to withstand industrial conditions with high tolerance to temperature and humidity variations. ## Applications • **Manufacturing Automation:** Ideal for controlling sequential operations in assembly lines and production processes. • **Safety Systems:** Utilized in emergency stop circuits, ensuring safe operation by providing necessary delays for system shutdowns. • **HVAC Systems:** Commonly applied in heating, ventilation, and air conditioning systems to regulate timing for fan and compressor operations. • **Compatibility:** Designed to work seamlessly with Allen-Bradley PLCs and other automation systems, ensuring smooth integration. ## Benefits • **Enhanced Efficiency:** Improves operational workflow by allowing for precise delays, optimizing manufacturing processes. • **Increased Reliability:** Pneumatic actuation reduces the likelihood of mechanical failure, ensuring consistent performance under varying conditions. • **Flexible Integration:** The adjustable timing feature allows for customization based on specific operational requirements, enhancing versatility. --- *Product information compiled with AI assistance for reference purposes.*