JB4ES TuffSeal® Excitation Trim Junction Box


  • Jumpers to enable trimming
  • PreVent™ breather vent
  • Conformal coated circuit board
  • Number of cells: Two, three or four single cells
  • Expansion port
  • Floor, tank, hopper scales

The JB4ES TuffSeal® excitation trim junction box sums two or four single load cell inputs with the potential to expand and connect other junction boxes. The stainless steel NEMA Type 4X enclosure is optimal protection against harsh environments and abrasive materials. The JB4ES TuffSeal excitation trim junction box is ideal for use in tank and hopper scale applications.

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JB4ES Tuffseal Excitation Trim Junction Box Specifications

Cable Fittings:
(4) PG7 0.118 to 0.255 strain relief
(2) PG11 0.197 to 0.394 strain relief

NEMA Type 4X
Stainless steel

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

Spring clamp screwless, 12 to 28 AWG

Individual cell, excitation trim

100 ohm, 25-turn cermet

Circuit Board:
3.8 × 2.3 in, with conformal coating

One-year limited



J-Box,JB4ES 4 Channel Excitation Trim with Expansion, Stainless Steel Nema 4X FM Approved, Board,4 Channel ET Excitation Trim w/Expansion FM, Enclosure,JB4SS/ES Only JB4SS/ES Junction Box Enclosure W/Cord Grips & Filter. Includes Cover and Gasket.


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