Rice Lake JB4EP JB4EPT TuffSeal Excitation Trim Junction Box NEMA 4X

The Rice Lake JB4EP and JB4EPT TuffSeal® Excitation Trim Junction Boxes are industrial-grade load cell summing and trimming solutions designed for demanding weighing applications. These junction boxes allow multiple load cells to be combined into a single weighing system while providing precise excitation trimming to optimize scale performance and weighing accuracy.

Designed to support two, three, or four single load cells, the JB4EP series features individual excitation trim adjustment, enabling technicians to fine-tune each load cell for balanced output across the scale platform. This helps improve measurement consistency and overall weighing accuracy in industrial environments.

An integrated expansion port allows additional junction boxes to be connected when larger weighing systems require more load cells than a single junction box can accommodate. This scalability makes the JB4EP series an ideal choice for tank weighing systems, hopper scales, vessel weighing applications, and process control installations.

The rugged NEMA Type 4X enclosure provides excellent protection against moisture, dust, corrosion, and washdown conditions. Combined with a conformal-coated circuit board and Rice Lake's PreVent™ breather vent technology, the internal electronics remain protected from condensation and environmental contaminants, ensuring dependable long-term operation.

For applications exposed to electrical surges or lightning-related disturbances, the JB4EPT version incorporates transient protection to help safeguard load cells and weighing electronics from voltage spikes.

Whether used in agricultural, industrial, chemical processing, food production, or bulk material handling applications, the JB4EP and JB4EPT deliver reliable load cell signal management and weighing system performance.

Key Features

• Connects two, three, or four single load cells
• Individual excitation trim for precise load cell balancing
• Expansion port for larger multi-load-cell weighing systems
• Jumpers enable or disable individual load cells
• PreVent™ breather vent helps reduce moisture and condensation
• Conformal-coated circuit board for enhanced durability
• NEMA Type 4X enclosure for harsh industrial environments
• Spring-clamp screwless terminals for easy installation
• JB4EPT model includes transient protection for surge-sensitive applications
• Designed for tank scales and hopper scale systems