Thomas & Betts 6304 1 In Nonmetallic Liquidtight Conduit Connector, Thermoplastic

It's thermoplastic, body and all. That makes it a good choice where a steel or zinc fitting would corrode, such as wash-down areas, food processing rooms, or damp exterior equipment enclosures. It also means it is nonconductive, so it does not carry the equipment grounding path the way a metallic fitting on metal conduit can. Run a separate equipment grounding conductor inside the conduit.

No. The 6304 terminates 1 inch nonmetallic liquidtight flexible conduit, not jacketed cable. For PVC-jacketed MC or TECK cable you want a cable connector built for it, such as the Bridgeport Fittings 597-DC2 Mighty-Seal in 3/4 inch, which is a zinc cable connector rather than a conduit fitting.

They serve different runs. The Thomas & Betts 6304 is a 1 inch straight liquidtight connector made of thermoplastic for terminating nonmetallic liquidtight flexible conduit. The Bridgeport Fittings 597-DC2 is a Mighty-Seal connector for 3/4 inch PVC-jacketed MC/TECK cable and is zinc bodied. If the raceway on the job is liquidtight flexible conduit, the 6304 is the fitting that matches it; if you are landing jacketed MC or TECK cable, the 597-DC2 is built for that cable type instead.

The 6304 is a straight connector, so the conduit leaves the enclosure on the same axis as the knockout. Use an angle connector instead when the conduit has to turn immediately at the box and you don't have room for a sweep, which is common on tight motor terminal boxes and equipment mounted close to a wall. For a straight shot into a knockout with clearance behind, the straight fitting is the one you want.

That's what the liquidtight design is for, sealing the conduit entry against water at the box. The thermoplastic body adds corrosion resistance that metal fittings don't have, which matters on rooftop units, irrigation controls, and pool or wash-down equipment. Confirm the enclosure and conduit are rated for the same location type so the whole run is consistent.

No. The Thomas & Betts 6304 connector body is thermoplastic, which is why it is designated a nonmetallic liquidtight connector. The Bridgeport Fittings 597-DC2 Mighty-Seal is zinc. Specifiers who want a nonmetallic, non-corroding fitting on the conduit termination will look to the 6304; where a metallic body is called out on the drawing, the zinc 597-DC2 fits that description.

The 6304 is a Type A nonmetallic liquidtight connector and is supplied as a connector assembly for a 1 inch knockout. Anything beyond the connector itself, such as a reducing washer if your knockout is oversized, or a separate bonding bushing, has to be ordered separately.