Panduit FL50X50LG Flexible Wiring Duct, Light Gray, 50x50mm, 32-Pack
The Panduit FL50X50LG is a slotted-sidewall, open-finger flexible wiring duct engineered for cable routing in tight spaces and applications where rigid duct simply won't reach. Part of the Panduct® family, the FL50X50LG is molded from flexible polypropylene and measures 1.97" x 1.97" (50 mm x 50 mm) with each piece running 19.7" (500 mm) long — roughly 1.64 ft per stick. If your panel layout demands routing around obstructions or you need to add and remove conductors after termination without cutting or reworking your duct run, this is the profile built for that job.
Overview
Standard rigid wiring duct works well for straight runs in open enclosures, but the moment your route bends around a DIN rail assembly, a transformer, or a tight corner in a control cabinet, flexibility becomes a functional requirement — not a convenience. The FL50X50LG addresses that directly. The one-piece, open-finger sidewall design lets you press wires in or pull them out without tools, which matters during commissioning and field modifications. The 50 mm x 50 mm cross-section provides enough interior volume for moderate conductor bundles in a compact footprint, making it a practical fit for security panels, access control enclosures, and structured wiring applications where runs need to navigate around components rather than past them.
Key Features
- Flexible Polypropylene Construction: Unlike rigid PVC duct, the polypropylene material bends to follow irregular routes inside an enclosure without cracking or requiring heat. If you're working inside a shallow backbox or routing around a power supply that's in the way, the material gives instead of fighting you.
- 1.97" x 1.97" (50 x 50 mm) Cross-Section: Sized for moderate wire bundles in compact enclosures — large enough to handle grouped low-voltage runs, small enough to fit in panel layouts where space is at a premium. The square profile keeps bundles organized and makes it easy to plan routing in grid-based enclosure layouts.
- 19.7" (500 mm) Length Per Piece: Each stick covers just under half a meter, giving you a practical baseline unit for panelboard runs. At 32 pieces per package, that's roughly 52.5 linear feet of duct per order — enough to fully route a mid-size control cabinet or multiple smaller enclosures in one purchase.
- Open-Finger Slotted Sidewall: The open-slot design means wires can be added or removed laterally after initial termination — no need to pull back conductors from the far end or disassemble the run. Critical in environments where circuits get added post-commissioning, like phased security system buildouts or access control expansions.
- No Adhesive Required: The duct mounts without adhesive, keeping the installation clean and reversible. Repositioning or swapping a section doesn't leave residue on the enclosure pan or DIN rail surface.
- UL 94 V-2 Flammability Rating: V-2 means the material self-extinguishes within 30 seconds after a flame source is removed and is rated for use in electrical enclosures — a standard minimum threshold for UL-listed panel assemblies. Meets the baseline flame performance requirement for indoor low-voltage control applications.
- RoHS, UL Recognized, CE, and BABA Compliant: RoHS compliance restricts hazardous substances, relevant for any installation under EU or California environmental standards. UL Recognized Component status means it qualifies for use inside UL-listed assemblies without additional testing. BABA (Build America, Buy America) compliance makes it a viable choice for federally funded infrastructure projects subject to domestic content requirements.
- Light Gray Color: The standard light gray finish matches most industrial enclosure interiors, making it easy to visually distinguish duct from conductors and to document installations cleanly with photos or as-built drawings.
Integration & Compatibility
The FL50X50LG is a Panduit Panduct® product and is compatible with standard Panduit wiring duct fittings, mounting clips, and covers designed for the 50 mm duct series. It fits into a broader cable management system alongside rigid Panduct duct for hybrid runs — flexible sections where needed, rigid where the run is straight. The 50 mm square profile also aligns with common DIN rail panel standards, making it straightforward to incorporate into new or retrofit enclosure builds. For installations that require a wiring duct cover or end caps, confirm compatibility with the Panduct 50 mm accessory series before ordering. BABA compliance is particularly relevant for network and security infrastructure projects under federal grant or public works funding.
What's in the Box
- 32x Panduit FL50X50LG Flexible Wiring Duct pieces (19.7" / 500 mm each, light gray polypropylene)
Frequently Asked Questions
Q: Can wires be added or removed from the FL50X50LG after initial installation without special tools?
A: Yes. The open-finger slotted sidewall design allows conductors to be pressed in or pulled out laterally after termination — no special tooling required. This is the primary functional advantage over rigid closed-wall duct.
Q: What flammability rating does the FL50X50LG carry, and is it suitable for UL-listed enclosures?
A: The FL50X50LG is rated UL 94 V-2, which is the standard flame-retardant threshold for electrical enclosure applications. It also carries UL Recognized Component status, meaning it qualifies for use in UL-listed assemblies.
Q: How many linear feet of duct do I get per package?
A: Each package contains 32 pieces at 1.64 ft (500 mm) per piece, totaling approximately 52.5 linear feet of flexible wiring duct per package order.
Q: Is the FL50X50LG compliant with Buy America requirements for government or federally funded projects?
A: Yes. The FL50X50LG is BABA (Build America, Buy America) compliant, making it eligible for use on federally funded infrastructure projects subject to domestic content mandates.
Q: What is the cross-section of the FL50X50LG and what material is it made from?
A: The duct measures 1.97" x 1.97" (50 mm x 50 mm) and is molded from flexible polypropylene — no adhesive is required for installation, and the material bends to accommodate routing around obstructions inside enclosures.
Q: Is the FL50X50LG RoHS and CE compliant?
A: Yes. The FL50X50LG meets RoHS (Restriction of Hazardous Substances) and CE requirements, along with UL Recognized Component and BABA compliance.
The FL50X50LG is one of those components you don't think about until a rigid duct run hits a dead end inside a crowded enclosure — and then it's the only answer. I specify this profile specifically because of the open-finger sidewall: in phased security system buildouts where circuits are added over time, being able to drop a conductor into the duct mid-run without disassembly saves meaningful labor. The 50 mm x 50 mm cross-section handles a reasonable bundle of 18–22 AWG low-voltage conductors without overstuffing, which keeps bend radius manageable when you're navigating around a transformer or power supply.
Technical Highlights:
- UL 94 V-2 Flammability: Self-extinguishes within 30 seconds — the minimum standard for use inside UL-listed electrical enclosures. Meets code without overengineering for most low-voltage panel applications.
- 32-Piece Package / ~52.5 Linear Feet: At 500 mm per stick, a single package order covers most mid-size control panel builds end-to-end without leftover fractions from cutting longer rigid sections.
- BABA Compliant: Directly qualifies for federally funded physical security projects — access control and surveillance infrastructure under DHS or GSA grants frequently have domestic content checklist requirements where this matters.
Deployment Considerations:
- Plan your flexible sections before ordering covers — not all Panduct 50 mm covers flex with the duct. Verify cover compatibility separately if your run needs to be enclosed post-wiring.
- UL 94 V-2 is appropriate for most indoor low-voltage enclosures, but if your AHJ requires V-0 flame performance (common in certain industrial or plenum-adjacent applications), confirm with the inspector before spec'ing this duct.
For access control panel builds — particularly retrofit jobs where enclosures are pre-populated and rigid duct can't navigate the existing layout — the FL50X50LG is the right call. The no-adhesive, tool-free wire access makes it equally practical for integrators who are commissioning in phases and expect to revisit conductor routing more than once.
