Thomas & Betts LTBUS02L-K LFMC CMP UL 1/2IN BLU 150M/500FT

The LTBUS02L-K is 1/2 inch trade size liquid tight flexible metallic conduit supplied on a 500 foot (150 m) reel. It is one continuous put-up, so a job needing shorter runs gets cut from the reel rather than ordered in pieces.

It is metallic. The LTBUS02L-K is built on a galvanized steel core with a liquidtight outer jacket, so it is LFMC rather than the nonmetallic LFNC type. As with all liquidtight flexible metal conduit, an equipment grounding conductor is still pulled inside the raceway; do not rely on the core alone for the ground path.

That is what a liquidtight jacket is for. The LTBUS02L-K is liquid tight flexible metallic conduit, so the outer jacket seals the raceway against moisture, oil and dust while the steel core takes the flexing on vibrating equipment like motors, pumps and rooftop units. Use liquidtight fittings at both ends, since standard flexible metal conduit connectors will not maintain the seal.

Blue jacket on the LTBUS02L-K identifies it as the computer/data (CMP) grade of liquid tight flexible metallic conduit, so electricians and facility crews can tell data and instrumentation runs apart from standard gray power conduit at a glance. Electrically and mechanically it is still a steel core liquidtight whip, just color coded for circuit segregation.

For general branch power, the gray standard liquidtight is the usual pick. The blue LTBUS02L-K is the computer/data grade put-up, normally run where a facility color codes data, instrumentation or isolated equipment circuits so they are identifiable during service. Construction is the same liquid tight flexible metallic type with a galvanized steel core, so the decision is really about your color coding scheme, not performance.