Middle Atlantic Ladder Stringer Junction Hardware 1 pair - CLH-RSJ

Middle Atlantic CLH-RSJ Ladder Stringer Junction Hardware

Overview

The Middle Atlantic CLH-RSJ is a cable ladder stringer junction component designed to splice and connect cable ladder runs in structured AV, security, and data infrastructure installations. Where cable ladders need to extend beyond a single run or transition at a junction point, the CLH-RSJ provides the mechanical connection hardware that keeps the ladder system aligned, secure, and code-consistent. The black zinc coat finish is not cosmetic decoration — zinc coating resists corrosion in the conditioned-but-active environments typical of equipment rooms, above-ceiling cable trays, and server room overhead ladder systems, where airborne moisture from HVAC and condensation cycles would otherwise attack bare steel over time.

At 5 inches deep, 2.42 inches tall, and 0.64 inches wide, the CLH-RSJ (sometimes searched as CLH RSJ) is a compact splice piece that stays out of the way of the cable mass it's supporting. Installers working in tight above-ceiling spaces or dense overhead ladder networks will appreciate that this hardware doesn't add meaningful bulk to the run.

Key Features

• Black Zinc Coat Finish: Zinc coating provides a corrosion-inhibiting layer suited to equipment rooms and above-ceiling plenum spaces where humidity and HVAC condensation are routine. A bare-metal finish in those environments corrodes and weakens at fastener points — the zinc layer extends the service life of the mechanical connection without requiring any field treatment.
• Cable Ladder Component Type: The CLH-RSJ is purpose-built for Middle Atlantic's cable ladder system, which means the geometry and fastener pattern are matched to the ladder's stringer profile. Using the correct splice hardware — rather than a field-improvised bracket — keeps the ladder run true and prevents the lateral flex that can loosen cable bundles over time.
• Compact Form Factor (5" D × 2.42" H × 0.64" W): The narrow 0.64-inch width means the hardware sits close to the stringer face, leaving full clearance for cables routed along both sides of the ladder. In dense cable environments, every fraction of an inch of clearance matters for pull tension and future adds.
• Junction-Point Integrity: Stringer junction hardware is a structural connection point in the ladder run. The CLH-RSJ handles the mechanical load transfer at splice locations so the ladder system behaves as a continuous run rather than two independent sections that can spread or shift independently.
• Precision Fit for Middle Atlantic Cable Ladder Systems: Manufactured to match the Middle Atlantic cable management product line, this hardware eliminates the guesswork of field-fabricating junction points. Correct-fit hardware also means installation goes faster — no grinding, no shimming, no improvised fastener patterns.
• Single-Package Delivery (Package Count: 1): Supplied as a complete unit ready for installation. Knowing exactly what's in the package prevents mid-job shortages on larger ladder runs where junction counts are pre-calculated.

Integration & Compatibility

The CLH-RSJ is part of Middle Atlantic's cable ladder and cable management ecosystem. It is designed for use with Middle Atlantic cable ladder stringers and should be matched to the specific ladder width and profile in your installation. If you are planning a new cable ladder infrastructure or extending an existing run, verify your ladder model designation before ordering junction hardware — Middle Atlantic offers multiple ladder widths and load ratings, and junction hardware is not universally interchangeable across all configurations.

Cable ladder systems like those using the CLH-RSJ are commonly deployed above ceilings, in dedicated cable trays within network rack and enclosure environments, and in structured cabling pathways for security, AV, and data systems. For complete overhead cable pathway planning — including ladder sizing, support spacing, and fill ratios — consult a cable management accessories reference before finalizing your bill of materials.

Because the CLH-RSJ connects ladder sections at their stringer rails, it is typically installed in pairs — one per stringer side — to complete a full junction across the ladder's width. Confirm your project's junction hardware quantity against the number of splice points and the dual-stringer requirement before placing your order.

Frequently Asked Questions

Q: What is the CLH-RSJ used for?

A: The CLH-RSJ is a stringer junction hardware component for Middle Atlantic cable ladder systems. It connects and splices cable ladder runs at junction points, keeping the ladder aligned and mechanically sound across extended cable pathways.

Q: What finish does the CLH-RSJ have, and why does it matter?

A: The CLH-RSJ has a black zinc coat finish. Zinc coating provides corrosion resistance in equipment rooms, above-ceiling spaces, and anywhere HVAC moisture or humidity cycles are present — conditions where bare steel would degrade at fastener and contact points over time.

Q: What are the dimensions of the CLH-RSJ?

A: The CLH-RSJ measures 5 inches deep, 2.42 inches tall, and 0.64 inches wide. The narrow profile keeps clearance open for cable routing along both sides of the ladder stringer.

Q: Is the CLH-RSJ compatible with all cable ladder systems?

A: The CLH-RSJ is designed specifically for Middle Atlantic cable ladder systems. It should be matched to your specific Middle Atlantic ladder model and stringer profile. It is not guaranteed to be interchangeable with other manufacturers' cable ladder hardware.

Q: How many CLH-RSJ units do I need per junction point?

A: A typical cable ladder has two stringers (one per side). Junction hardware is generally required on each stringer side, so most splice points will require two units. Confirm the specific ladder configuration against your project's BOM before ordering.

Q: What is the UPC for the CLH-RSJ?

A: The UPC for the Middle Atlantic CLH-RSJ is 656747037085.

Eden Phillips

The CLH-RSJ is the kind of component that doesn't get discussed until someone orders the wrong one or forgets to count it on the BOM — and then the ladder run stalls mid-installation. It's a stringer junction piece for Middle Atlantic cable ladder systems, measuring 0.64 inches wide by 2.42 inches tall by 5 inches deep, with a black zinc coat finish. Small part, real structural role: it's what keeps two ladder sections acting as one continuous run rather than two independent pieces that want to shift relative to each other under cable load.

Technical Highlights:

• Black Zinc Coat Finish: Zinc coating is the right call for above-ceiling and equipment-room environments where HVAC condensation cycles are the norm. It inhibits surface oxidation at the hardware's contact and fastener points — the exact locations where bare steel would start degrading first.
• Compact 0.64" Width: At less than two-thirds of an inch wide, this hardware doesn't intrude into the cable fill zone. In fully loaded ladder runs — which can carry dozens of Cat6, fiber, and low-voltage bundles — cable-side clearance is not spare room, it's a pull-tension and future-add concern.
• Purpose-Matched Geometry: The CLH-RSJ is designed to the Middle Atlantic ladder stringer profile. That means the fit is predictable and the load path at the splice is engineered, not improvised. Field-fabricated junction solutions introduce variability that shows up as misalignment and fastener loosening after the first thermal cycle.

Deployment Considerations:

• The CLH-RSJ is a stringer-side component. Most cable ladders have two stringers, so a single junction point in the run typically requires two units — one per side. Under-ordering by a factor of two is the most common BOM error on cable ladder projects; count your splice locations and double the hardware quantity before finalizing your purchase order.
• Verify ladder model compatibility before ordering. Middle Atlantic produces cable ladders in multiple widths and load profiles, and junction hardware geometry is matched to specific ladder configurations. The CLH-RSJ part number should be cross-referenced against your ladder model in the Middle Atlantic cable ladder documentation.

The CLH-RSJ is the right specification for structured cable pathway projects — security system head-end rooms, AV rack rooms, and data center overhead ladder infrastructure — where the cable ladder run needs to extend or transition and the junction hardware needs to be a reliable, corrosion-resistant mechanical connection, not a field workaround.