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JB4EP and JB4EPT TuffSeal® Excitation Trim Junction Box
Standard Features
- Fiberglass Reinforced Polyester (FRP), NEMA Type 4X enclosure with stainless steel cover screws
- Jumpers to enable/disable a load cell
- PreVent™ breather vent
- Conformal coated circuit board
- Number of cells: Two, three or four single cells
- Expansion port
- Tank and hopper scales
Approvals
Some approval documents are available to view by clicking the icons below.

WARNING: Cancer and Reproductive Harm California Proposition 65
The JB4EP TuffSeal® excitation trim junction box sums two or four single load cell outputs with the potential to expand through the included expansion port. The Fiberglass Reinforced Polyester (FRP), NEMA Type 4X enclosure is optimal protection against harsh environments. Optimal JB4EP TuffSeal applications include tank and hopper scale configurations.
JB4EP and JB4EPT TuffSeal Excitation Trim Junction Box Specifications
Cable Fittings: Enclosure: |
Temperature: Connectors: Trimming: |
Potentiometers: Circuit Board: Warranty: |
JB4EP & JB4EPT TuffSeal Excitation Trim Junction Box Dimensions
Replacement Junction Boxes, Boards or Components Table
Model | Complete J-Box Replacement | Replacement Board Only | Replacement Cord Grips | Replacement Pressure & Condensation Vent | Desiccant Packs |
---|---|---|---|---|---|
JB4SS | 88956 | 88958 | 58983 59001 | 88733 PreVent™ breather (vent) 88734 (vent nut) | 92240 |
JB4ES | 91779 | 89446 | 58983 59001 | 88733 PreVentbreather (vent) 88734 (vent nut) $1.05 | 92240 |
JB4SP JB4SPT | 91780 92762 | 88958 (load cell) and 89894 (transient protection) |
58983 59001 | 88733 PreVent breather (vent) 88734 (vent nut) | 16039 |
JB4EP JB4EPT | 91781 92763 | 89446 (load cell) and 89894 (transient protection) |
58983 59001 | 88733 PreVent breather (vent) 88734 (vent nut) | 16039 |
EL204 | 73428 | 88958 | N/A | N/A | N/A |
JB8SP | 91782 | **89889 | 15655 (cord grip) and 15656 (nut)=3/8" NPT 15628 (cord grip) and 15630 (nut)=1/2" NPT |
88733 PreVent breather (vent) 88734 (vent nut) | 16039 |
JB8SPT | 91783 | 89889 (load cell) and 89894 (transient protection) | 15655 (cord grip) and 15656 (nut)=3/8" NPT 15628 (cord grip) and 15630 (nut)=1/2" NPT |
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 59001 | N/A | N/A |
EL211A | 91780, JB4SP (However the board does not have section trim capabilities)* | 92473 (However the board does not have section trim capabilities) | 58983 59001 | N/A | N/A |
EL604-AL | 88956, JB4SS* | 88958 | 58983 59001 | N/A | N/A |
EL604STA | 88956, JB4SS* | 88958 | 58983 59001 | N/A | N/A |
EL604ETA | 91779, JB4ES* | 89446 | 58983 59001 | N/A | N/A |
EL504 | 21165 | 21296 | N/A | N/A | N/A |
JB808S | 91782, JB8SP* | 92471 | 15655 (cord grip) and 15656 (nut)=3/8" NPT 15628 (cord grip) and 15630 (nut)=1/2" NPT |
N/A | N/A |
JB818ST | 91783, JB8SPT* | Need (1) 77445 (1) 89889 and (1) 89894 | 15655 (cord grip) and 15656 (nut)=3/8" NPT 15628 (cord grip) and 15630 (nut)=1/2" NPT |
N/A | N/A |
Resources / Downloads
Parts
Part # | Description | List Price | Cart |
---|---|---|---|
91781 | J-Box,JB4EP 4 Channel Excitation Trim with Expansion, FRP Nema 4 FM Approved |
List Price: $285.00 |
|
92763 | J-Box,JB4EPT 4 Channel Excitation Trim With Expansion, FRP Nema 4 With Transient protection |
List Price: $475.00 |
|
89446 | Board,4 Channel ET Excitation Trim w/Expansion FM |
List Price: $170.00 |
|
89894 | Board ASSY,Transient GDT Summing Box transient protection board |
List Price: $235.00 |
|
165272 | Enclosure,JB4SP/SPT Only JB4SP/SPT/EP/EPT Junction Box Enclosure w/o Cord Grips and Filter. Includes Backplate, Cover and Gasket. |
List Price: $145.00 |
Options
No options found for this product
Replacement Parts
Replacement parts can only be purchased through trained and authorized dealers. You must be logged in as a dealer to view any available replacement parts.
To locate a dealer in your area, please call us at 1-800-472-6703 or fill out a request online.
Related Products

JB4EP and JB4EPT TuffSeal® Excitation Trim Junction Box
The JB4EP and JB4EPT TuffSeal junction box sums two or four single load cell outputs and can be expanded through an expansion port.