Panduit CLT50F-C4 Corrugated Loom Tubing, Slit-Wall, 0.5 In, 100 Ft, Yellow
Overview
The Panduit CLT50F-C4 is a 100-foot roll of yellow slit-wall corrugated loom tubing designed to protect wire bundles and pre-assembled harnesses from crush impact and abrasion in indoor environments. With a 0.518-inch (13.16 mm) inside diameter and a full-length slit running along its length, this tubing drops onto an existing wire run without disassembly — a practical advantage during panel builds, retrofit wiring, or machine harness work where pulling individual conductors through a closed tube is not an option. The CLT50F-C4 (often searched as CLT50F C4) ships as a single 100-foot roll, giving you a full run for most mid-scale wiring jobs without splicing.
Key Features
- Slit-wall design for retrofit installation: The continuous longitudinal slit lets you press the tubing directly onto a pre-wired harness — no need to thread individual wires. In panel work or machine rewiring this alone cuts installation time significantly versus closed-wall alternatives.
- 0.518-inch (13.16 mm) inside diameter: Sized for small-to-medium wire bundles common in control panels, equipment cabinets, and automotive-style harnesses. Confirm your bundle diameter fits within this ID before ordering; bundled 14–18 AWG conductors in groups of 4–8 typically fall within this range.
- Polyethylene construction with crush and abrasion resistance: The corrugated profile distributes point loads across multiple ridges rather than a flat surface, so the wires inside survive repeated contact with cabinet edges, conduit lips, and vibrating panel surfaces without jacket damage.
- UL 94 HB flammability rating: HB is a horizontal-burn classification — the material self-limits flame spread but is not self-extinguishing. This is appropriate for enclosed equipment cabinets and general indoor wiring protection. If your application requires a higher flammability class (V-0, V-1), a different tubing grade is needed.
- Maximum operating temperature 122°F (50°C): Suitable for typical indoor environments including equipment rooms, server areas, and light industrial panels. Not rated for high-heat zones near motor drives or heat-generating power equipment where sustained temperatures exceed 50°C.
- RoHS compliant: The polyethylene formulation meets RoHS requirements, which matters for OEM manufacturers shipping finished equipment into the EU or other regulated markets where material declarations are part of product compliance documentation.
- Yellow color for visual circuit identification: Color-coding wire protection by zone, circuit type, or voltage level is a common panel-build practice. Yellow provides clear visual contrast in a mixed-color cabinet and is a common convention for caution/low-voltage signaling in some installation standards.
- 100-foot single roll (package qty 1): The 30.48-meter length handles most single-run panel or machine wiring jobs in one piece. For large installations requiring multiple rolls, confirm inventory depth before committing to a build schedule.
Integration and Compatibility
The CLT50F-C4 is secured with standard cable ties — Panduit's own cable tie product line integrates directly, and the corrugated ridges provide consistent tie engagement without slipping. For high-vibration environments, locking or releasable ties with a defined minimum loop tensile strength are recommended over standard one-piece ties.
This tubing is part of Panduit's broader wire routing and management product line, which includes closed-wall corrugated tubing, spiral wrap, and fitting accessories. For installations requiring a watertight or liquid-resistant conduit solution, this slit-wall polyethylene tubing is not the right choice — look at liquid-tight flexible conduit instead.
When planning a full cable management system, pair this tubing with appropriate end fittings and conduit clamps to prevent chafing at entry and exit points, particularly where the tubing transitions from a panel knockout to open air.
What's in the Box
- 1x Panduit CLT50F-C4 corrugated loom tubing, slit-wall, 0.5-inch ID, 100-foot roll, yellow
Frequently Asked Questions
Q: What is the inside diameter of the CLT50F-C4?
A: The inside diameter is 0.518 inches (13.16 mm). Verify that your wire bundle fits within this dimension before ordering.
Q: Is the CLT50F-C4 suitable for outdoor use?
A: No. The product description specifies indoor applications only. For outdoor wire routing protection, select a tubing product rated for UV exposure and moisture.
Q: What is the maximum temperature rating for the CLT50F-C4?
A: The maximum temperature rating is 122°F (50°C). It is not intended for high-heat zones near motors, drives, or other heat-generating equipment that sustains temperatures above this threshold.
Q: What flammability rating does the CLT50F-C4 carry?
A: UL 94 HB — a horizontal-burn classification indicating limited flame spread. This is appropriate for general indoor cabinet and panel work, but not sufficient if your application requires a self-extinguishing V-0 or V-1 rating.
Q: How is the CLT50F-C4 held in place once installed?
A: The tubing is secured using standard cable ties and compatible accessories. The corrugated profile provides consistent tie engagement along the full length of the run.
Q: Is the CLT50F-C4 RoHS compliant?
A: Yes, the CLT50F-C4 meets RoHS compliance standards, making it suitable for use in equipment destined for EU and other regulated markets requiring material declarations.
The CLT50F-C4 is the tubing I reach for when the harness is already built and I need to protect it without pulling everything apart. That slit-wall design on a 100-foot roll means you can run the full length of a mid-size panel or machine frame in one piece, pressing the tubing over the bundle as you go rather than threading conductors one at a time through a closed-wall tube.
Technical Highlights:
- 0.518-inch ID: Fits cleanly over small wire bundles typical of 14–18 AWG control wiring in groups of 4–8 conductors — snug enough to stay in place, loose enough to slide along the bundle during positioning before tying off.
- UL 94 HB flammability: HB is the right call for enclosed indoor panels where the material won't sustain an open flame, but be clear-eyed that it is not self-extinguishing — V-0 applications need a different product entirely.
- 50°C maximum temperature: Covers standard equipment rooms and control panels with room to spare, but I would not run this adjacent to a VFD or servo drive output section where ambient temps can exceed that threshold in a sealed enclosure.
Deployment Considerations:
- Secure with cable ties at both ends and at intervals no greater than 12–18 inches along the run — the slit will open under lateral pressure if the tubing isn't tied at regular intervals, especially in high-vibration machine frames.
- This is strictly an indoor product. If any portion of your run passes through a wall penetration or near an HVAC intake where moisture condensation is possible, stop the CLT50F-C4 before that transition and switch to a rated liquid-tight solution for that segment.
This roll is a natural fit for control panel builders and OEM machine wiring shops running standard 100-foot harness runs — the single-roll pack quantity matches the job scale without leftover waste on a typical mid-size cabinet build.
