metal tray cable connectors

[JJspark]

I am working with 480 volt 3 phase that is ran in tray cable (TC-ER). I leave the tray in cable and enter a disconnect with an metal cable connector thru concentric knockouts. Do I need bond bushings on those connectors?

 

[Dennis Alwon]

See if this helps

250.97 Bonding for Over 250 Volts. For circuits of over
250 volts to ground, the electrical continuity of metal raceways
and cables with metal sheaths that contain any conductor
other than service conductors shall be ensured by
one or more of the methods specified for services in
250.92(B), except for (B)(1).
Exception: Where oversized, concentric, or eccentric knockouts
are not encountered, or where a box or enclosure with
concentric or eccentric knockouts is listed to provide a
reliable bonding connection, the following methods shall
be permitted:
(1)
Threadless couplings and connectors for cables with
metal sheaths
(2) Two locknuts, on rigid metal conduit or intermediate
metal conduit, one inside and one outside of boxes and
cabinets
(3) Fittings with shoulders that seat firmly against the box or
cabinet, such as electrical metallic tubing connectors,
flexible metal conduit connectors, and cable connectors,
with one locknut on the inside of boxes and cabinets
(4) Listed fittings

 

[Jim1959]

The connector is not a metal raceway or metal sheathed cable, but I would be safe and install a bonding bushing anyway. Easier and less costly to do it initially than have to change it later!

Actually, as I read the code article again, it is required! My bad!