Thomas & Betts L-14-50-9-C Standard, 100 Pack

Temperature rating on the L-14-50-9-C is -40F to 185F, so cold crawlspaces and hot attic runs are inside the range. One thing to weigh: the tie is natural (undyed) Nylon 6.6, and natural nylon is not UV stabilized, so for exposed outdoor runs in sunlight a black UV-rated tie is the better call.

Yes. It is listed to military standard part number MS-3367-2-9, which is the designation a government or defense job will call out on the drawing. It is also RoHS compliant, which matters for institutional and export work.

They serve different purposes on a job. The Thomas & Betts L-14-50-9-C is a single configuration bought in quantity: a 14 inch nominal length nylon 6.6 tie, 0.187 inch wide, natural color, handling bundles up to 4 inches in diameter, packed 100 to the inner carton. The Burndy CTASST is a Unirap cable tie canister variety pack containing both natural and black ties in assorted sizes. If you are tying off a known bundle size repeatedly - panel wiring, conduit runs, bundling feeders - the L-14-50-9-C gives you one length in bulk. If you are stocking a service truck or a maintenance cart and want a range of lengths on hand for unknown work, the assorted canister covers more situations with fewer part numbers.

For a drawing that calls out a military standard part, you want the tie that carries the number. The Thomas & Betts L-14-50-9-C corresponds to military standard part number MS-3367-2-9 and carries a UL 94 V-2 flammability rating, and it is RoHS compliant. The Burndy CTASST Unirap canister is a mixed assortment of natural and black ties, which is a stocking item rather than a single specified part number, so it is not the item to submit against a line that names an MS number.

UL 94 V-2. That is the common rating for standard natural nylon ties. If your specification demands V-0 for a plenum or equipment enclosure, this tie does not meet it and you need a V-0 rated material instead.

These ship 100 per inner pack, and 100 is also the order multiple, so quantities go up in hundreds. A full outer carton is 5,000 pieces. Weight runs about 5 lbs per 1,000 ties, useful if you are figuring freight on a large institutional order.

The L-14-50-9-C is compatible with the ERG50, QC-100, L-200 and L-400-C application tools. Hand tightening works for light duty, but for a repeatable tension and a flush cutoff on a large harness or panel job, use one of those tools.

The L-14-50-9-C only comes as a single 14 inch length, 100 to a pack, so it is best when you know you are bundling up to 4 inches repeatedly. For a stocked truck or shop, the Burndy CTASST Unirap cable tie canister variety pack carries an assortment in natural and black instead of one fixed size.

The Thomas & Betts L-14-50-9-C is a natural color nylon 6.6 tie rated from -40 degrees F to 185 degrees F. Natural nylon is the standard choice for indoor and enclosed work; for runs exposed to sunlight, installers typically specify a black tie instead. The Burndy CTASST Unirap canister includes black ties alongside natural ones, so if part of your work is outdoors and part is inside a panel, that assortment covers both colors from one canister.

Tie tools are matched to the tie, not interchangeable by default. The Thomas & Betts L-14-50-9-C is installed with the ERG50, QC-100, L-200 or L-400-C application tools. The Burndy CTASST is a Unirap series canister pack, a different manufacturer's tie line, so confirm tooling against Unirap rather than assuming a Thomas & Betts tool carries over. If you already own one of the Thomas & Betts tools, standardizing on the L-14-50-9-C keeps that tool in service.

The strap on this tie measures 0.187 inches wide in Nylon 6.6, which is the standard-duty width used for general electrical bundling and harnessing up to a 4 inch bundle. For heavy mechanical support, suspending weight, or strapping cable to strut, use a heavy duty wide-strap tie or a proper cable cleat instead; a standard tie is a bundling device, not a support.