Galvanized Rigid Steel Conduit (GRC)
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Galvanized Rigid Conduit (GRC)
Allied Tube & Conduit Calconduit
Features: ꞏ Manufactured from mild steel ꞏ Hot-dip galvanized for excellent corrosion resistance ꞏ High strength ductile steel for long life and easy bending ꞏ Smooth, continuous raceways for fast wire pulling ꞏ Kwik-Release End Cap to protect threads ꞏ True Color TM GRC special orders available ꞏ Very effective in reducing the effects of EMI ꞏ Threaded on both ends, with a coupling applied to one end and a thread protector to the other ꞏ Suitable for direct burial applications Certifications & Compliances: ꞏ Listed to Safety Standard UL 6 ꞏ Manufactured in accordance with ANSI C80.1
ꞏ Covered by article 344 of the NEC ꞏ Class I Division 1 hazardous locations ꞏ Recognized as an equipment grounding conductor in Section 250.118 of the NEC and CEC Section 10 ꞏ NEMA RN 3 Standard Applications: ꞏ Encased power distribution circuits ꞏ Shielding computers and other sensitive electronic equipment from the effects of electromagnetic interference
Part Number
Trade Size
Trade Size
Outside Diameter*
Nominal Wall Thickness**
Approx Weight Per 100 ft (30.5M)
Master Bundle Quantity
(in)
(mm)
(in)
(mm)
(in)
(mm)
(lb)
(kg)
(ft)
(m)
1/2 3/4
278879 278887 278895 278903 278911 278929 278937 278945 278952 278960 278978 278986
16 21 27 35 41 53 63 78 91
0.840 21.34 0.104 1.050 26.67 0.107 1.315 33.40 0.126 1.660 42.16 0.133 1.900 48.26 0.138 2.375 60.33 0.146 2.875 73.03 0.193 3.500 88.90 0.205 4.000 101.60 0.215 4.500 114.30 0.225 5.563 141.30 0.245 6.625 168.28 0.266
2.64 2.72 3.20 3.38 3.51 3.71 4.90 5.21 5.46 5.72 6.22 6.76
82
37.2 49.4 73.0 98.9
2500 2000 1250
762.5
109 161 218 263 350 559 727 880
610
1
381.3 274.5
1 1/4 1 1/2
900 800 600 370 300 250 200 150 100
119.3 158.8 253.6 329.8 399.2 467.2 689.5 809.7
244 183
2
2 1/2
112.9
3
91.5 76.3
3 1/2
4 5 6
103 129 155
1030 1520 1785
61
45.8 30.5
*Tolerances: trade size 1/2 to 1-1/2: ±0.015 (0.38mm); TRADE SIZE 2-6: ±1% Length equals 10 ft. (3.05m) with a tolerance of +/- .25 In. (6.35mm) ** For information only. Not a requirement of the UL Standard.
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