Junction Boxes "J-Box"

Extremely small junction boxes with Signal trim for 4 load cells. One multi-turn potentiometer per load cell that shunts the output and two series output isolation resistors that limit zero interaction. Screw terminals simplify wire connection. Accepts wire size 26 to 14 AWG. Five nylon strain relief are included for load cells & instrument cables. Both boxes are NEMA 4X and gaskets for corrosion resistance. The GS-JB-4-SS is made of Stainless Steel and the GS-JB-4-FRP is made of Fiberglass reinforced plastic. The small size of these boxes make them a good replacement for low profile warehouse scales. In many cases the box will fit under the platform 7" x 4.625" x 1.75"h.   Part number Weight Price Buy signal trim Use drop down arrow to select part number GS-JB-4-SS Stainless Steel 3 lb 91.20 GS-JB-4-FRP fiberglass reinforced plastic 2 lb 50.40 excitation trim GS-JB-4-E-SS Stainless Steel 3 lb 91.20 GS-JB-4-E-FRP fiberglass reinforced plastic 2 lb 50.40 summing card only GS-SC summing card only, 4 channel, signal trim 1 lb 30.00 GS-SC-E summing card only, 4 channel excitation trim 1 lb 30.00 enclosure without card GS-JB-SS enclosure only 2 lb 64.80           Stainless Steel NEMA 4 enclosure contains printed circuit card specifically designed to adjust each load cell Span without effecting zero. One multi-turn potentiometer per load cell shunts the output and two series output isolation resistors limit zero interaction. Terminal blocks are lever type that simplify wire connection. Strip the wire, push the lever, insert the wire and release the lever. Accepts wire size 26 to 14 AWG. One terminal block for each load cell and one terminal block for the indicator. Expansion terminal block is on models 1250, 1251 and 1260 for expansion to another summing box. span adjustment is 3% for 350 ohm load cells; 5% for 700 ohm load cells. Corrosion proof nylon strain relief are provided for cable 0.197"-0.354" dia. Enclosure size is 6-1/2" x 8-3/8" x 1-3/4"H. Circuit card size is 4-7/8" x 6-3/4" x 5/8"H Section Adjustment 1251, 1260, 1280, 12100 circuit cards have section adjust pots for ease in scale calibration. First the two cells in each section are matched. then the sections are matched with the additional section pots. Both cells in a section should have load cells. if one load cell is not wired to a section, resistors should be connected that have an equivalent resistance. Part Number # Cells Weight Price Buy Stainless Steel NEMA 4 enclosure w/summing card Use drop down arrow to select part number   1250-4-SS (with cell adjustment) 2 to 4 5 lb 187.80 1251-4-SS (with cell and section adjustment) 2 to 4 5 lb 196.20 1260-6-SS 5 to 6 5 lb 219.60 1280-8-SS 7 to 8 5 lb 236.40 12100-10-SS 9 to 10 5 lb 300.00 Summing Card Only 1250 Card only 2 to 4 1 lb 84.60 1251 Card only 2 to 4 1 lb 93.00 1260 Card only 5 to 6 1 lb 117.00 1280 Card only 7 to 8 1 lb 133.80 12100 Card only 9 to 10 1 lb 180.00 Stainless Steel NEMA 4 enclosure w/summing card w/surge protection 1250-4-SS-SP 2 to 4 5 lb 214.80 1251-4-SS-SP 2 to 4 5 lb 223.20 1260-6-SS-SP 5 to 6 5 lb 246.60 1280-8-SS-SP 7 to 8 5 lb 262.80 12100-10-SS-SP 9 to 10 5 lb 326.40 Summing card only w/surge protection 1250-SP Card only 2 to 4 1 lb 110.40 1251-SP Card only 2 to 4 1 lb 120.00 1260-SP Card only 5 to 6 1 lb 142.80 1280-SP Card only 7 to 8 1 lb 159.60 12100-SP Card only 9 to 10 1 lb 206.40 Enclosure without card 1250B/1251B Enclosure only w/(5) strain relief 4 lb 103.20 1260B Enclosure only w/(7) strain relief 4 lb 105.00 1280B Enclosure only w/(9) strain relief 4 lb 106.20 12100B Enclosure only w/(11) strain relief 5 lb 109.80

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