PVC Coated Conduit Hubs
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STTB Conduit Hubs
Allied Tube & Conduit Calbond
Features: ꞏ Exterior PVC coating thickness is a minimum 0.040" ꞏ Interior urethane coating thickness is a minimum 0.002" ꞏ STTB available in 10 trade sizes from ½" through 4" ꞏ Sealing sleeves on conduit side of hub ꞏ Molded PVC gasket seals flush with enclosure wall ꞏ Neoprene O-ring gasket provides additional seal ꞏ The length of the sleeve extension(s) shall be at least equivalent to the nominal conduit size for sizes ½"- 2" ꞏ For sizes 2½"- 4", the length of the sleeve extension(s) shall be at least 2"
Standards: ꞏ UL 514B ꞏ NEC/CEC:
• Class III, Division 1 & 2 • Class I, Zone 1, AEx e II • Class I, Zone 1, Ex e II
• Class I, Division 2, • Class II, Division 1 & 2
ꞏ All Screw-tight Hubs are manufactured in accordance with NEMA type enclosures 2, 3, 3R, 4, 4x, 11 and 12 Applications: ꞏ PVC Coated STTB Conduit Hubs are used to terminate conduit runs through the wall of a sheet metal electrical enclosure ꞏ STTB style hubs are ‘Through-Bulkhead’ fittings used to pass conduit runs through firewalls or bulkheads up to 1/8" thick
A
C
B
Part Number
Trade Size
A
B
C
Max Wall Thickness
(in)
(in)
(in)
(in)
(in)
PV0500STTB1 PV0700STTB2 PV1000STTB3 PV1200STTB4 PV1500STTB5 PV2000STTB6 PV2500STTB7 PV3000STTB8 PV3500STTB9 PV4000STTB10
1/2 3
1.84 2.22 2.66 2.94 3.19 3.75 4.22 4.31 4.38 4.44
2.00 2.25 2.50 3.25 3.50 4.25 4.75 5.25 5.50 6.25
1.31 1.66 2.03 2.28 2.53 3.09 3.28 3.38 3.44 3.50
0.190 0.190 0.250 0.250 0.250 0.250 0.250 0.250 0.250 0.250
1
11 11/2
2
21/2
3
31/2
4
All dimensions are for informational purposes only *Tolerances +/- 5%
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