Features
- Exterior PVC coating thickness is a minimum 0.040″
- Interior Urethane coating thickness is a minimum 0.002″
- STTTB available in 6 trade sizes from 1/2″ through 2″
- Sealing sleeves on conduit side of hub
- Molded PVC gasket seals flush with enclosure wall
- Neoprene O-ring gasket provides additional seal
- The length of the sleeve extension(s) shall be at least equivalent to the nominal conduit size for sizes 1/2″- 2″
Applications
Calbond PVC STTTB Style Hubs are used to terminate conduit runs through the wall of a sheet metal electrical enclosure. STTTB style hubs are “Through-Bulkhead” fittings used to pass conduit runs through firewalls with unlimited wall thickness. (furnished without nipples)
Standards
- UL 514B
- NEC/CEC:
- Class I, Division 2,
- Class II, Division 1 & 2
- Class III, Division 1 & 2
- Class I, Zone 1, AEx e II
- Class I, Zone 1, Ex e II
- All Screw-tight Hubs are manufactured in accordance with NEMA type enclosures 2, 3, 3R, 4, 4x, 11 & 12
PVC Coated STTTB Conduit Hubs
| Item Number | Trade Size (in) | A | B | C | Weight Per 100 (lbs) |
|---|---|---|---|---|---|
| Steel | |||||
| PV0700STTTB2 | 3/4 | 2.22 | 2.25 | 4.44 | 100 |
| PV0500STTTB1 | 1/2 | 1.84 | 2.00 | 3.68 | 100 |
| PV1000STTTB3 | 1 | 2.66 | 2.50 | 5.32 | 140 |
| PV1200STTTB4 | 1 1/4 | 2.94 | 3.25 | 5.88 | 200 |
| PV1500STTTB5 | 1 1/2 | 3.19 | 3.50 | 6.38 | 240 |
| PV2000STTTB6 | 2 | 3.75 | 4.25 | 7.50 | 340 |
| Aluminum | |||||
| PA0500STTTBA1 | 1/2 | 1.84 | 2.00 | 3.68 | Contact Factory |
| PA0700STTTBA2 | 3/4 | 2.22 | 2.25 | 4.44 | Contact Factory |
| PA1000STTTBA3 | 1 | 2.66 | 2.50 | 5.32 | Contact Factory |
| PA1200STTTBA4 | 1 1/4 | 2.94 | 3.25 | 5.88 | Contact Factory |
| PA1500STTTBA5 | 1 1/2 | 3.19 | 3.50 | 6.38 | Contact Factory |
| PA2000STTTBA6 | 2 | 3.75 | 4.25 | 7.50 | Contact Factory |