Allen Bradley 840-B4 Float Switch for Tank or Sump Operation

# Limit Switches The **Allen-Bradley 840-B4 Float Switch** is a highly reliable and versatile device designed for tank and sump operation applications. This float switch is engineered to provide accurate monitoring of liquid levels, making it essential for maintaining optimal operation in various industrial environments. With its robust construction and advanced features, the 840-B4 is ideal for ensuring safety and efficiency in fluid management systems. ## Key Features • **Durable Construction:** Made with high-quality materials, the 840-B4 is built to withstand harsh industrial conditions, ensuring longevity and reliability. • **Versatile Operation:** Suitable for a wide range of liquids, including water and oil, this float switch is perfect for both sump and tank applications. • **Compact Design:** Its compact form factor allows for easy installation in tight spaces, making it ideal for various setups. • **Mechanical Actuation:** The float switch operates through a mechanical actuation mechanism, providing consistent performance and accurate level detection. • **Electrical Rating:** The switch accommodates a maximum load of 10 A at 250 VAC, ensuring compatibility with a variety of electrical systems. ## Applications • **Sump Pump Control:** Effectively regulates the operation of sump pumps to prevent overflow and manage liquid levels in basements and pits. • **Tank Level Monitoring:** Utilized in tanks for accurate monitoring of liquid levels, ensuring efficient operations in industries such as water treatment and chemical processing. • **Compatibility:** The 840-B4 is compatible with various Allen-Bradley controllers and can be integrated seamlessly into existing automation systems. ## Benefits • **Enhanced Safety:** By providing precise liquid level detection, the float switch helps prevent overflow and potential damage to equipment and facilities. • **Operational Efficiency:** The reliable performance of the 840-B4 contributes to streamlined operations, reducing the risk of downtime due to liquid level mismanagement. • **Low Maintenance:** Designed for durability, this float switch requires minimal maintenance, allowing for cost-effective long-term operation. --- *Product information compiled with AI assistance for reference purposes.*