Rice Lake EL304A Signal Trim Junction Box 4-Channel NEMA 4X Expandable

The Rice Lake EL304A Signal Trim Junction Box is a rugged and expandable four-channel junction box designed to provide reliable load cell summing and signal trimming for industrial weighing systems. Built with a durable Fiberglass Reinforced Polyester (FRP) enclosure, the EL304A protects sensitive electronics from moisture, dust, and harsh operating environments while meeting NEMA Type 4X standards for industrial use.

Designed to accommodate two or four single load cells, the EL304A features individual cell signal disconnect switches that simplify troubleshooting and help technicians quickly identify faulty load cells or wiring issues. The junction box also provides both individual cell and section signal trimming, allowing for precise scale balancing and improved weighing accuracy across large platforms.

An integrated expansion port allows additional junction boxes to be connected, making the EL304A an ideal solution for larger weighing systems that require more than four load cells. This flexibility provides scalability for growing operations while maintaining accurate and reliable load cell signal management.

The enclosure is rated to withstand 40 PSI washdown environments when properly installed, making it suitable for demanding agricultural and industrial applications. Strain relief cable fittings help protect wiring connections from vibration and environmental stress, while high-precision 25-turn cermet potentiometers provide accurate signal trimming adjustments.

Whether used in livestock scales, tank weighing systems, vessel weighing installations, or other industrial weighing applications, the Rice Lake EL304A delivers dependable performance, easy maintenance, and long-term reliability.

Specifications

Applications

• Livestock Scales
• Tank Weighing Systems
• Vessel Weighing Systems
• Industrial Process Weighing
• Agricultural Weighing Applications
• Multi-Load-Cell Scale Systems
• Section and Corner Trim Installations