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Topic: PCS-duo cable (lumineer cable) for old work box

User: JJWalecka, Location: New England

Asked on: Tuesday, July 1, 2025 at 7:45 am EDT
Answered on: Tuesday, July 1, 2025 at 7:45 am EDT

Question: Good morning. Is the field strap in a metal old work box listed for PCS-duo cable (lumineer cable) listed for field strap in an octagon

Good morning!Whether a field strap in a metal old work box listed for PCS-duo cable (Lumeinaire cable) is also listed for use in an octagon box depends on the specific listing and instructions for that field strap.Here's the breakdown: Listings are specific

Electrical components are listed and approved for
specific uses. The listing is given by a Nationally Recognized Testing Laboratory (NRTL) like UL, ETL, etc. Just because something is listed for one application doesn't automatically mean it's listed for another.

Look for the listing information

The product packaging, and manufacturer's installation instructions will state what the field strap is listed for. It might specifically say "Suitable for use in octagon boxes" or something similar.

General Purpose

Some field straps might be designed for general purpose use and suitable for various metal boxes including octagon boxes. Again, the
listing needs to confirm this.

Check the instructions

Always follow the manufacturer's instructions! This is paramount. The instructions will detail approved box types, cable types, installation methods, and any limitations.

In short: you need to check the labeling and/or the manufacturer's instructions for the specific field strap you're using. If it doesn't explicitly say it's suitable for octagon boxes, then assume it is NOT.
Why this is important



Safety

Using a component outside of its listing can create a fire hazard or shock hazard.


Code Compliance

Electrical codes (like the NEC) require components to be used within their listing and instructions.

Liability

If something goes wrong, using a component improperly can expose you to liability.

Example

Let's say you're using a field strap brand "X" model "Y".1.

Find the packaging/instructions

Get the box or look up the manufacturer's website.2.

Look for key phrases

Look for phrases like:
"Suitable for use in octagon boxes"* "For use with metal boxes conforming to UL514A" (UL514A is the standard for metal boxes).3.

If you can't find it:
Contact the manufacturer directly to ask if the field strap is approved for use in an octagon box.I hope this helps! Let me know if you have another question. Flag for review

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