
As of: Wednesday, July 15, 2026

The JB4SS TuffSeal® signal trim junction box sums two or four single load cell outputs with the potential to expand and connect other junction boxes. The stainless steel NEMA Type 4X enclosure is proven protection in harsh environments and against abrasive materials. The JB4SS TuffSeal signal trim junction box is ideal for use in tank and hopper scale applications.
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Cable Fittings: Rating/Material: |
Connectors: Trimming: Temperature: |
Potentiometers: Circuit Board: Warranty: Approvals: |


| 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* (The board does not have section trim capabilities) |
92473 (The board does not have section trim capabilities) | 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* | Need (1) 77445, (1) 89889, (1) 89894 | 15655 (cord grip) 15656 (nut)=3/8" NPT 15628 (cord grip) 15630 (nut)=1/2" SPT |
N/A | N/A |
*See catalog page for enclosure dimensions
| Part # | Description | List Price |
|---|---|---|
| 88956 | Signal Trim with Expansion, w/PG 7 cord grips for load cells, Stainless Steel Nema 4X FM Approved | List Price: $295.00 |
| 107700 | Signal Trim with Expansion, w/PG9 cord grips for load cells, Stainless Steel Nema 4X FM Approved | List Price: $310.00 |
| 88958 | Signal Trim w/Expansion FM | List Price: $175.00 |
| 182990 | Signal Trim W/Expansion. | List Price: $180.00 |
| 165271 | JB4SS/ES Junction Box Enclosure W/Cord Grips & Filter. Includes Cover and Gasket. | List Price: $150.00 |
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