JB4SP and JB4SPT TuffSeal® Signal Trim Junction Box


  • 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

Ideal for use as a sub-junction box in a multiple modular system, the JB4SP TuffSeal® signal 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. The JB4SP TuffSeal signal trim junction box is ideal for use in tank and hopper scale applications.

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JB4SP and JB4SPT TuffSeal Signal 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
Polycarbonate with overlapping solid cover, stainless steel screws

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

Spring clamp screwless, 12 to 28 AWG

Individual cell, signal trim

100,000 ohm, 25-turn cermet

Circuit Board:
3.8 × 2.3 in, with conformal coating

One-year limited



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