EL504 Signal Trim Junction Box

As of: Friday, July 11, 2025
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Standard Features

  • Strain relief cable fittings
  • Removable connectors for easy wiring
  • Number of cells: two or four single cells (even number of cells only)
Applications
  • Truck and floor scales
  • Limited space installations

For signal trimming of two or four load cells outputs individually, the EL504 signal trim junction box is perfect for truck scales, floor scales and limited space installations. A stainless steel NEMA Type 4X enclosure ensures protection of sensitive circuitry from most destructive elements.

EL504 Signal Trim Junction Box Specifications

Cable Fittings:
Five nylon 0.187 to 0.312 in cable strain reliefs

Rating/Material:
NEMA Type 4X, 40 psi washdown
Stainless steel

Connectors:
Electrovert 0.197 in (5.0 mm) miniature two piece connectors. Maximum wire size #14 AWG; connectors are removable for easy wiring.

Trimming:
Individual cell, signal trim

Temperature:
Operating:
0 °F to 122 °F (-18 °C to 50 °C)

Potentiometers:
100,000 ohm, 25-turn cermet

Circuit Board:
6.5 × 1.5 in, with anti-fungal coating

Warranty:
One-year limited

EL504 Signal 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=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

Parts

Part # Description
21165 J Box,ST EL504 4 CHAN SST NEMA 4X
21296 Board,ST EL504 4 CHAN
165274 EL504 Enclosure Only EL504 junction box enclosure with cord grips and cover

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