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JB8SPT TuffSeal® Signal Trim Junction Box

  • Transient protection
  • PreVent™ breather vent
  • Conformal coated circuit board
  • Removable load cell connectors
  • Section and individual cell trim capability
  • Field replaceable transient protection
  • One coupling, 0.5 inch NPT cord grip to 0.75-inch NPT conduit fitting for homerun cable
  • Number of cells: two, four, six or eight single load cells (even number of cells only)
  • Expansion port
Applications
  • Truck, livestock and railroad scales
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Hdimage(1)

Offering the ultimate protection for important load cell output, the JB8SPT TuffSeal® signal trim junction box with transient protection is the optimal choice for truck, livestock and railroad scales susceptible to potentially destructive outdoor elements. The TuffSeal Fiberglass Reinforced Polyester (FRP) NEMA Type 4X enclosure effectively protects sensitive circuit boards and allows easy access for signal trimming individually or by section. The included transient board protects circuitry from devastating power surges.

Cable Fittings:
(9) 3/8 in NPT 0.157 to 0.314 in
(2) 1/2 in NPT 0.272 to 0.472 in

Rating/Material:
NEMA Type 4X
Polycarbonate with overlapping solid cover, stainless steel screws

Connectors:
Pluggable screw type, 12 to 28 AWG

Trimming:
Individual cell trim

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

Potentiometers:
100,000 ohm, 25-turn cermet

Circuit Board:
5.7 × 7.2 in with conformal coating

Warranty:
One-year limited

Enclosure
A 12.13 in E 9.32 in
B 11.45 in F 5.98 in
C 11.38 in G 6.95 in
D 10.59 in    

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

Resources / Downloads

Title Download Email
JB8SPT Catalog Page Download Email

Title Version Revision Download Email Category Archived
TuffSeal Heavy Capacity Junction Box Installation Manual D Download Email Junction Boxes No
TuffSeal JS8SP Heavy Capacity Junction Box Installation Manual - FM version A Download Email Junction Boxes No

Title Download Email
Replacement Junction Boxes, Boards or Components Catalog Page Download Email

Parts

Part # Description List Price Cart / Quote
91783 J-Box,JB8SPT 8 Channel Signal Trim with Expansion, Polycarbonite Nema 4 w/transient protection

List Price: $700.00
89889 Board,8 Channel ST Signal Trim And Section Trim w/Expansion

List Price: $395.00
89894 Board ASSY,Transient GDT Summing Box transient protection board

List Price: $235.00
165273 Enclosure,JB8SP/SPT Only JB8SP/SPT Junction Box Enclosure W/O Cord Grips and filter. Incl Back plate, cover and gasket.

List Price: $165.00

Options

Part # Description List Price Cart / Quote
92734 Assembly,Coupling & Cap Bonded, 1/2 in NPT Grip Cap To 92574 Coupling

List Price: $27.00
92735 Assembly,Coupling & Cap Bonded, 3/8in NPT Cap To Coupling 92575

List Price: $27.00
215178 Mounting Feet, New Style Mounting feet for new style JB4SP,JB4SPT,JB4EP,JB4EPT,JB8SP JB8SPT AND iQUBE enclosures. Set of 4 and includes 10-32 screws

List Price: $15.00

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.

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