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50
SCREW PLUG TERMINATION ENCLOSURE CONFIGURATIONS
“C” DIA.
(”D” PLACES)
“F”
Screw Plug Size
SCREW PLUG HEATER WITHOUT ENCLOSURE
“B”
SCREW PLUG SIZE
(NPT) “H”
VARIABLE LENGTH
SEPARATOR PLATE
“G” “E”
Enclosure
Type
NEMA 1 ENCLOSURE
NEMA 4 ENCLOSURE NEMA 7 ENCLOSURE
Number of
Elements
B
C (Max. Element
Dia.)
190 Detroit Street • Cary, Illinois 60013 • Phone: 847-639-5600 • Fax: 847-639-2199 • Web: www.durexindustries.com • TOLL FREE: 800-762-3468
“G”
“G”
D E F G
1.00 No Enclosure 1 1.25” 0.32” 2.00 N/A N/A N/A
1.00 NEMA 1 1 1.25” 0.32” 2.00 1.63” 3.25” 3.25”
1.00 NEMA 4 1 1.25” 0.32” 2.00 4.72” 3.50” 3.50”
1.00 NEMA 7 1 1.25” 0.32” 2.00 5.11” 3.50” 4.50”
1.25 No Enclosure 1, 2, 3 1.25” 0.32” 2, 4, 6 N/A N/A N/A
1.25 NEMA 1 1, 2, 3 1.25” 0.32” 2, 4, 6 1.63” 3.25” 3.25”
1.25 NEMA 4 1, 2, 3 1.25” 0.48” 2, 4, 6 2.50” 3.50” 3.50”
1.25 NEMA 7 1, 2, 3 1.25” 0.32” 2, 4, 6 5.11” 3.50” 4.50”
1.50 No Enclosure 1, 2, 3 1.50” 0.38” 2, 4, 6 N/A N/A N/A
1.50 NEMA 1 1, 2, 3 1.50” 0.32” 2, 4, 6 2.63” 4.00” 4.00”
1.50 NEMA 4 1, 2, 3 1.50” 0.44” 2, 4, 6 3.92” 4.00” 4.00”
1.50 NEMA 7 1, 2, 3 1.50” 0.32” 2, 4, 6 5.11” 4.75” 5.25”
2.00 No Enclosure 3 1.88” 0.43” 6.00 N/A N/A N/A
2.00 NEMA 1 3 1.88” 0.43” 6.00 2.50” 4.00” 4.00”
2.00 NEMA 4 3 1.88” 0.43” 6.00 2.25” 4.00” 4.00”
2.00 NEMA 7 3 1.88” 0.43” 6.00 5.35” 4.75” 5.25”
2.50 No Enclosure 3 1.88” 0.43” 6.00 N/A N/A N/A
2.50 NEMA 1 3 1.88” 0.48” 6.00 2.63” 4.75” 4.75”
2.50 NEMA 4 3 1.88” 0.44” 6.00 4.50” 4.75” 4.75”
2.50 NEMA 7 3 1.88” 3.92” 6.00 3.92” 5.75” 6.50”
“F”
“F”
“E”
“E”
SCREW PLUG
½” NPT
Standard Material Combinations
Screw Plug Element
Brass Copper
Brass Incoloy
Brass Steel
Stainless Steel Incoloy
Stainless Steel Stainless steel
Steel Copper
Steel Incoloy
Steel Steel