Load Cell Junction Boxes

A load cell junction box connects multiple load cells together in parallel, combining their individual signals into a single output that’s sent on to your weighing indicator. It’s an essential link between the load cells in a scale and the display that shows you the weight.

Most industrial scales use more than one load cell to support the platform evenly, so a junction box is needed to bring those signals together, balance them, and pass a single, accurate signal to the indicator. Without one, the load cells simply can’t communicate as a system.

It depends on the model. MWS supplies junction boxes for 2, 3, 4, or 6 load cells, so whether you’re running a small platform scale or a larger multi-cell system, there’s an option to match your setup.

An equalisation junction box doesn’t just combine load cell signals, it also balances or ‘equalises’ them, correcting for small differences between individual load cells so the overall weight reading stays accurate. Our JBQ, JBQI, JBQA, and JBQAI ranges are all equalisation junction boxes.

An intelligent junction box, such as our JB4T-INTELLIGENT, goes a step further by continuously monitoring your weighing system for error or fault conditions across up to four load cells. This means problems can be picked up early, helping to reduce downtime and protect weighing accuracy.

Absolutely! MWS supplies ATEX-rated junction boxes, including the JBQA and JBQAI, for use in hazardous or potentially explosive environments. These are built to the ATEX standard to ensure safe operation wherever flammable gases, vapours, or dust could be present.

An ATEX rating is an international safety standard for electrical equipment used in areas with a risk of explosion or fire. Products carrying an ATEX label have been tested to confirm they won’t produce sparks or flames, so it’s essential to choose ATEX-rated equipment for any hazardous area application.

Yes, our junction boxes are built with robust IP ratings, from IP65 up to IP67, giving reliable protection against water and dust. This makes them well suited to washdown areas and other demanding industrial environments.

Compression load cells are installed using a threaded hole to fix the sensor onto a beam, while tension load cells are typically mounted using adhesive tape or screws rather than a threaded hole. Your junction box and connection kit need to suit whichever type of load cell you’re using.

Definitely! Our junction boxes can be supplied individually to replace an existing unit that has failed, or as part of a complete load cell kit if you’re setting up a new weighing system.

Yes, we supply load cell junction boxes and connection kits to clients across a wide range of industries. Whatever you’re trying to achieve, our team will help find an affordable, safe solution for your particular application.

It’s worth speaking to our team before buying, as the right choice depends on how many load cells you’re running, whether you need equalisation or intelligent monitoring, and whether the environment calls for an ATEX rating. Call us today or chat with our customer service team online, and we’ll help you find the right fit.