The Rice Lake JB8SPT TuffSeal™ Signal Trim Junction Box is designed to deliver reliable performance in demanding outdoor weighing environments, such as truck, livestock, and railroad scales. Built with a durable NEMA Type 4X fiberglass-reinforced polyester enclosure, it offers exceptional resistance to harsh weather conditions, washdowns, and corrosion. Its overlapping cover and stainless-steel screws create a tight seal that protects sensitive components from moisture and contaminants, while the integrated PreVent™ breather vent reduces condensation build-up, extending the life of the electronics inside.
 
At the heart of the JB8SPT is a conformal-coated circuit board that resists environmental damage and provides signal trimming functionality to achieve precise load cell balancing. With compatibility for two, four, six, or eight single-cell load configurations, the junction box provides flexibility for a wide range of applications and can easily accommodate future system expansions. Each unit is equipped with field-replaceable transient protection, safeguarding weighing systems from lightning strikes and power surges, which is critical for maintaining operational uptime in remote or high-exposure locations.
 
The junction box is equipped with a full array of cord grips and fittings that allow for secure and reliable wiring, supporting wire sizes from 12 to 28 AWG. Its signal trim board, built with high-quality 100,000-ohm cermet potentiometers, ensures accurate adjustments and fine-tuning of load signals, while the robust transient protection board adds another layer of safety. The JB8SPT is designed to perform in temperatures ranging from 0 °F to 122 °F (−18 °C to 50 °C), making it suitable for a variety of climates and industrial conditions.
 
This junction box is particularly well-suited for large-scale installations where precision and durability are paramount. It balances the need for rugged environmental protection with advanced electrical functionality, ensuring accurate readings even under the most challenging conditions. The JB8SPT is also supported by a one-year limited warranty from Rice Lake, reflecting the company’s confidence in its engineering and performance standards.