# Allen-Bradley 840-A4 Automatic Float Switch, Bulletin 840 Liquid Level Control - MROSupply.com

***Allen-Bradley 840-A4 automatic float switch for liquid level control and monitoring. This Bulletin 840 component is designed for industrial applications requiring reliable pump control, tank level indication, or alarm functions. The switch operates automatically based on the position of its integral float, providing a discrete electrical signal for integration into control panels or PLC systems.***



## Product details:

- Catalog number: 840-A4
- SKU: 5721745
- Price: ***$3,379.32*** Each
- Shipping: ***FREE SHIPPING***  ON ORDERS OVER $100
- Typically Ships in: 1 day
- Brand: [Allen Bradley](https://www.mrosupply.com/brands/allen-bradley/)
- Category: 
    - [Limit Switches](htts://www.mrosupply.com/electrical/switches-selectors-pilot-lights/limit-switches/)
    - [Switches, Selectors & Pilot Lights](htts://www.mrosupply.com/electrical/switches-selectors-pilot-lights/)
    - [Electrical](htts://www.mrosupply.com/electrical/)
- Unit of measure: each
- Weight: 0.001 lb
- UPC: 781180905124
- Returns: Yes


## Product images:
- https://static.mrosupply.com/images/noimage.webp


## Product documents / software:

- [Specification sheet](https://documents.mrosupply.com/product_documents/57/21/5721745/SPEC_47788625_SpecificationSheet_iTnMUOi.pdf)

## Product's reviews:
- Perfect - Excellent transaction, will buy from again, the website and checking out process was "Perfect".
- Great shopping - CORRECT ITEM AND FAST SHIPPING!!
- Easy and quick - Thanks.
- Exellant - same as described, delivered on time.
thank you