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JB4SP and JB4SPT TuffSeal® Signal Trim Junction Box | Rice Lake

Original price $327.99 - Original price $545.99
Original price
$327.99
$327.99 - $545.99
Current price $327.99

Key Features

  • Sums two, three, or four single load cell outputs

  • Jumpers for enabling/disabling individual load cells

  • Fiberglass Reinforced Polyester (FRP), NEMA Type 4X enclosure

  • PreVent™ breather vent protects against condensation

  • Signal trim with individual cell adjustments

  • Spring clamp screwless connectors (12 to 28 AWG)

  • Expansion port for modular system configurations

  • Conformal coated circuit board for durability

  • Wide temperature range: 0 °F to 122 °F

  • One-year limited warranty

  • Ideal for tank and hopper scale applications

The Rice Lake JB4SP and JB4SPT TuffSeal® Signal Trim Junction Boxes are specially designed to sum the outputs of up to four load cells, offering precision, protection, and expandability in modular scale systems. These junction boxes are ideal for use as sub-junction boxes in multiple load cell configurations for tank and hopper scales.

Constructed with a Fiberglass Reinforced Polyester (FRP) enclosure, rated NEMA Type 4X, they are engineered to withstand harsh environments while protecting internal electronics from moisture and corrosion. The PreVent™ breather vent enhances this by eliminating condensation buildup inside the housing.

Each JB4SP or JB4SPT comes equipped with individual signal trimming, screwless spring clamp connectors, and a conformal coated circuit board, delivering long-term stability and accuracy. The inclusion of an expansion port makes them suitable for scalable installations, especially in industrial weighing environments.

JB4SP and JB4SPT Signal Trim Junction Box Specifications
Material Fiberglass Reinforced Polyester (FRP)
Enclosure Rating NEMA Type 4X
Load Cell Capacity Two, Three, or Four Single Load Cells
Cable Fittings (4) PG7: 0.118 – 0.255 in, (2) PG11: 0.197 – 0.394 in
Connectors Spring Clamp, Screwless (12 to 28 AWG)
Trimming Type Signal Trim (Individual Cell)
Potentiometers 100,000 ohm, 25-turn cermet
Circuit Board 3.8 × 2.3 in with conformal coating
Temperature Range 0 °F to 122 °F (-18 °C to 50 °C)
Warranty One-Year Limited
Approvals cFMus
Enclosure Dimensions (inches)
A B C D E F G
10.04 9.52 8.50 7.43 4.00 5.95 5.71
Complete Replacement Parts Table
Model Complete J-Box Replacement Replacement Board Only Replacement Cord Grips Replacement Pressure & Condensation Vent Desiccant Packs
JB4SS 88956 88958 58983=PG7, 59001=PG11 88733 PreVent™ breather (vent), 88734 (vent nut) 92240
JB4ES 91779 89446 58983=PG7, 59001=PG11 88733 PreVent™ breather (vent), 88734 (vent nut) 92240
JB4SP / JB4SPT 91780 / 92762 88958 / 89894 58983=PG7, 59001=PG11 88733 PreVent™ breather (vent), 88734 (vent nut) 16039
JB4EP / JB4EPT 91781 / 92763 89446 / 89894 58983=PG7, 59001=PG11 88733 PreVent™ breather (vent), 88734 (vent nut) 16039
EL204 73428 88958 N/A N/A N/A
JB8SP 91782, 173807 - FM Approved 89889, 172415 - FM Approved 15655 (cord grip), 15656 (nut)=3/8" NPT, 15628 (cord grip), 15630 (nut)=1/2" SPT 88733 PreVent™ breather (vent), 88734 (vent nut) 16039
JB8SPT 91783 89889 (load cell), 89894 (transient protection) 15655 (cord grip), 15656 (nut)=3/8" NPT, 15628 (cord grip), 15630 (nut)=1/2" SPT 88733 PreVent™ breather (vent), 88734 (vent nut) 16039
EL304A 21169 21301 N/A N/A N/A
JB1010 36231 36351 N/A N/A N/A
JB1010ST 68813 68811 N/A N/A N/A
EL210 91781, JB4EP* 92472 58983=PG7, 59001=PG11 N/A N/A
EL211A 91780, JB4SP* 92473 (no section trim) 58983=PG7, 59001=PG11 N/A N/A
EL604-AL 88956, JB4SS* 88958 58983=PG7, 59001=PG11 N/A N/A
EL604STA 88956, JB4SS* 88958 58983=PG7, 59001=PG11 N/A N/A
EL604ETA 91779, JB4ES* 89446 58983=PG7, 59001=PG11 N/A N/A
EL504 21165 21296 N/A N/A N/A
JB808S 91782, JB8SP* 92471 15655 (cord grip), 15656 (nut)=3/8" NPT, 15628 (cord grip), 15630 (nut)=1/2" SPT N/A N/A
JB818ST 91783, JB8SPT* 77445, 89889, 89894 15655 (cord grip), 15656 (nut)=3/8" NPT, 15628 (cord grip), 15630 (nut)=1/2" SPT N/A N/A

 

Why Choose JB4SP or JB4SPT?

When performance and durability matter, the JB4SP and JB4SPT TuffSeal® Junction Boxes provide the flexibility and accuracy required in demanding industrial weighing systems. With signal trimming, moisture-resistant protection, and scalable design, they’re the right choice for tank and hopper scale setups.

Get yours today from SellEton Scales — your authorized Rice Lake dealer — and build smarter, scalable, and more protected weighing systems.

Free Shipping: Available across 48 continental USA. Extra charges may apply for residential, farm, or rural areas.
Express Shipping: Overnight and faster shipping options available at additional costs. Quotes obtainable via email.
Delivery Time: Typically 5 to 7 business days, varying by location and external conditions.
Tracking Information: Provided via email upon shipment. Accessible through account login. Additional information available upon request.
Return Policy: 15-day return period for unused, original condition products. A 25% restocking fee applies. Buyer covers original and return shipping costs.
Customer Support: Contact at (844)-735-5386 or info@selletonscales.com for queries or concerns about shipping.

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