Middle Atlantic BK2010A2 STL Entrance End Fitting

Overview

The BK2010A2 is an entrance end fitting for Middle Atlantic's STL cable ladder system, used to terminate a ladder rack run at a rack, cabinet, or wall penetration point and give cabling a controlled, protected transition into the equipment enclosure. It's a small but functional piece of the cable pathway — the kind of fitting that determines whether a ladder rack run finishes cleanly at the rack entry or leaves cable hanging unsupported at the termination point. The BK2010A2 ships in black to match standard Middle Atlantic rack and ladder finishes.

Key Features

• 0.5 in (1.3 cm) knockout: Pre-sized knockout gives you a defined entry point for cable bundles or conduit fittings at the ladder termination, so you're not field-drilling sheet metal to get cable into the rack.
• Black finish: Matches the black finish used across most Middle Atlantic STL ladder and rack lines, so the entrance point doesn't stand out as a mismatched component in a finished rack elevation.
• TAA-compliant: Sourced and manufactured in a way that meets Trade Agreements Act requirements, which matters if this fitting is going into a GSA schedule, federal, or state/local government-funded install where TAA compliance is a procurement gate.

Integration & Compatibility

The BK2010A2 is built as a component of the Middle Atlantic STL cable ladder system and is intended to be installed at the point where an STL ladder run meets a rack or cabinet. Pair it with the rest of the Middle Atlantic catalog for ladder rack, runway, and rack enclosures on the same job so fitting and finish match down the run. If you're specifying an entire overhead or under-floor cable pathway for a data center or equipment room build-out, review a PoE and network cable planning guide before finalizing knockout placement and run lengths. For the racks and enclosures this fitting terminates into, see the network video recorders and rack-mount equipment lines that share the same STL ladder infrastructure, and check rack accessories for compatible ladder sections, supports, and grounding hardware to complete the run.

Frequently Asked Questions

Q: Is the BK2010A2 TAA compliant?

A: Yes, the BK2010A2 is TAA-compliant, which supports its use in GSA and government-funded procurement where Trade Agreements Act sourcing rules apply.

Q: What size knockout does the BK2010A2 have?

A: The BK2010A2 has a 0.5 in (1.3 cm) knockout for cable or conduit entry at the ladder termination point.

Q: What color does the BK2010A2 come in?

A: The BK2010A2 ships in black to match standard Middle Atlantic rack and ladder rack finishes.

Q: What is the BK2010A2 used for?

A: It's an entrance end fitting used to terminate a Middle Atlantic STL cable ladder run at a rack, cabinet, or wall entry point.

Ted Perry

The BK2010A2 is a small component, but it's the piece that decides whether your STL ladder run terminates cleanly at the rack or leaves you improvising a cable entry with a hole saw on-site.

Technical Highlights:

• 0.5 in (1.3 cm) knockout: Gives you a pre-defined, correctly-sized opening for cable bundles or conduit connectors right where the ladder meets the rack — no field modification needed at the termination point.
• Black finish: Matches standard Middle Atlantic STL ladder and rack finishes, so the entrance fitting doesn't read as an odd part in a finished elevation photo.
• TAA compliance: Relevant on any job with a GSA schedule or government funding source attached — worth confirming against your specific contract requirements before spec'ing the whole ladder run.

Deployment Considerations:

• Order entrance fittings before the ladder rack itself ships — they're easy to forget on a BOM since they're a small line item relative to the ladder sections.
• The 0.5 in knockout is fixed-size — if your cable bundle or conduit needs a larger opening, confirm the knockout diameter matches your actual cable count before finalizing the rack elevation.

Reach for the BK2010A2 when you're finishing out an STL ladder rack run into a data closet or equipment room rack and need a clean, TAA-compliant termination point rather than an open-ended ladder run dumping cable straight into the cabinet.