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JB4EP and JB4EPT – TuffSeal® Excitation Trim Junction Box

Rice Lake · Junction Boxes / Simulators

JB4EP and JB4EPT

TuffSeal® Excitation Trim Junction Box

Standard features

  • Jumpers to enable/disable a load cell
  • PreVent™ breather vent
  • Conformal -coated circuit board
  • Connect two, three or four single load cells
  • Expansion port

Specifications

Cable Fittings
(4) PG7 0.118 to 0.255 in strain relief (2) PG11 0.197 to 0.394 in strain relief
Rating/Material
NEMA Type 4X Polycarbonate with overlapping solid cover, stainless steel screws
Connectors
Spring clamp screwless, 12 to 28 AWG
Trimming
Individual cell, excitation trim
Temperature
Operating: 0 °F to 122 °F (-18 °C to 50 °C)
Potentiometers
100 ohm, 25-turn cermet
Circuit Board
3.8 × 2.3 in, with conformal coating
Warranty
One-year limited
Approvals
cFMus

Models & part numbers

Available configurations.

Part / modelDescription
91781JB4EP excitation trim junction box
92763JB4EPT excitation trim junction box with transient protection
89446Board only
89894Transient board
165272Enclosure only (does not include cord grips or filter)

Pricing, availability, and lead times are confirmed in your quote. Source: Rice Lake Weighing Systems 2026 Master Catalog, page 595. Specifications are subject to change without notice.