Rack-A-Tiers 52491 Acrylic Tip...
IN STOCK (leaves warehouse same day if ordered before 3pm ET)
$28.09
Rack-A-Tiers 52491 Acrylic Tip Valve-Activated U-Phase Wire Marker, 5-Inch

Rack-A-Tiers 52491 Acrylic Tip Valve-Activated U-Phase Wire Marker, 5-Inch

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Model: 52491

In Stock (leaves warehouse same day if ordered before 3pm ET)

$28.09
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Rack-A-Tiers 52491 Acrylic Tip Valve-Activated U-Phase Wire Marker, 5-Inch

The Rack-A-Tiers 52491 is a 5-Inch acrylic tip, valve-activated U-Phase wire marker designed to give electricians and installers a fast, reliable way to identify and color-code conductors during rough-in, service work, and panel terminations. Each marker features a durable acrylic tip that is engaged with a simple valve-activated action, allowing technicians to apply crisp, legible phase markings directly onto wire and cable without the mess or slow application time associated with traditional paint pens or adhesive tape wraps. The 52491 is available with White, Blue, Red, and Green markings, giving crews the color options needed to follow common U-Phase and utility color-coding conventions on the job site.

Key Features

  • 5-Inch Size: Compact 5-Inch marker sized for convenient handheld use in panels, junction boxes, and along conductor runs.
  • Acrylic Tip Construction: A durable acrylic tip delivers consistent, controlled marking without smearing or excess buildup, helping crews maintain clean, professional-looking phase identification.
  • Valve-Activated Application: The valve-activated tip dispenses marking fluid on demand, reducing waste and allowing quick, repeated use throughout a shift without drying out between applications.
  • U-Phase Color Coding: Offered in White, Blue, Red, and Green to support standard U-Phase and utility color identification schemes used to distinguish circuit phases and neutral conductors.
  • Job-Site Ready: Sized and built for use directly from a tool pouch or bag, making it easy for electricians to keep phase markers on hand during rough-in and finish work.
  • Fast Identification: Speeds up conductor identification compared to writing labels by hand, helping crews stay organized on multi-circuit installations and panel work.

Technical Specifications

  • Product Type: Wire Marker
  • Material: Acrylic Tip
  • Activation: Valve Activated
  • Size: 5-Inch
  • Color Options: White, Blue, Red, Green
  • Phase System: U-Phase

Typical Applications

  • Panelboard and Load Center Phase Identification
  • Commercial and Residential Electrical Rough-In
  • Conductor and Cable Color Coding
  • Service Entrance and Feeder Marking
  • Utility and Industrial Wire Identification

Why Rack-A-Tiers?

Rack-A-Tiers designs job-site tools that help electricians work faster and stay organized, and the 52491 wire marker continues that focus with a durable acrylic tip and simple valve-activated design built for repeated daily use. With multiple color options supporting standard U-Phase identification, this marker helps installers maintain clear, consistent conductor labeling from rough-in through final inspection. Choose Rack-A-Tiers for job-site marking tools built with the practical, contractor-focused design the brand is known for.

Manufacturer Resources

Product Specs

list_batch:
RAC-20260924
Product Type:
Wire Marker
Configuration:
Valve Activated
Department:
Electrical
Product Subgroup:
Wire Markers & Labels
Product Material:
Acrylic
Product Group:
Cable Management & Identification

Rack-A-Tiers 52491 – Frequently Asked Questions

1) What colors does the Rack-A-Tiers 52491 wire marker come in?
The 52491 U-Phase marker is offered with White, Blue, Red, and Green marking, the four colors crews need to follow common U-Phase and utility conductor color-coding schemes on panel and feeder work.
2) Will this marker write directly on wire insulation and cable jacket?
Yes. The 52491 applies marking fluid straight onto wire and cable through its acrylic tip, which is how it is intended to be used for conductor and cable color coding, service entrance and feeder marking, and panelboard phase identification.
3) I need to label conductors with circuit numbers, not just phase colors. Is the Rack-A-Tiers 52491 the right choice?
No. The Rack-A-Tiers 52491 applies color marking through a valve-activated acrylic tip and is offered in White, Blue, Red, and Green for U-Phase and utility color-coding schemes, so it identifies a conductor by color rather than by text. For circuit numbers or written legends, use a write-on marker such as the 3M ScotchCode SWD-R refill roll, whose 0.75 inch by 1.375 inch markers are written on by hand and applied to the wire. Many crews carry both: the 52491 for phase identification and a write-on roll for circuit identification at panel terminations.
4) What is the difference between the Rack-A-Tiers 52491 wire marker and a 3M ScotchCode SWD-R write-on marker roll?
They mark conductors in two different ways. The Rack-A-Tiers 52491 is a 5-inch, valve-activated marker with an acrylic tip that dispenses marking fluid directly onto the wire or cable, so the identification is applied as a color mark on the conductor itself and comes in White, Blue, Red, and Green for U-Phase color coding. The 3M ScotchCode SWD-R is a write-on wire marker refill roll with 0.75 inch by 1.375 inch markers, so the legend is hand-written on an adhesive marker that then wraps the conductor. Choose the 52491 when you want fast phase color coding with nothing to wrap; choose a write-on marker when the conductor needs a written circuit number or text legend rather than a color.
5) How does a valve-activated marker differ from a paint pen or taping a conductor?
The valve-activated tip on the Rack-A-Tiers 52491 releases marking fluid only when you press it to the wire, so it dispenses on demand instead of drying out between uses, and it leaves no adhesive wrap to unwind later. Compared with hand-writing labels or wrapping colored tape, it is faster for marking multiple phases in a panel and leaves a crisp mark with no smearing or buildup from the acrylic tip.
6) Do I order each color separately, or is 52491 one part number?
52491 is the single model number for the Rack-A-Tiers U-Phase marker, and it is the only model offered on it. Specify the color you need (White, Blue, Red, or Green) when you order so the right marking color ships.
7) Does the 3M ScotchCode SWD-R refill roll work as a replacement for the Rack-A-Tiers 52491?
They are not interchangeable. The SWD-R is a refill roll of write-on wire markers in the ScotchCode series, meaning it is consumable stock loaded into a dispenser and applied as individual adhesive markers. The Rack-A-Tiers 52491 is a 5-inch handheld marker tool with an acrylic tip and valve-activated fluid delivery, used straight from a tool pouch with nothing to load or reload. If you are restocking a ScotchCode dispenser, the SWD-R is the refill; if you are replacing a fluid phase marker, stay with the 52491.
8) What size is the Rack-A-Tiers 52491 and will it fit in a tool pouch?
It is a 5-inch marker, short enough to carry loose in a pouch or bag and to work with one hand inside a panel or junction box.
9) Is this marker practical for a whole panel of conductors, or just a few marks?
It is built for repeated use across a shift. The valve releases fluid only on contact, so the tip does not dry out between marks and waste is limited, which is what makes it workable on multi-circuit panelboard and load center terminations rather than a handful of marks.
How fast can I get the Rack-A-Tiers 52491 delivered?
Most orders ship the same day from our distribution partners, with quick delivery throughout the continental U.S. Need it urgently? Contact Us for expedited shipping options.
Can I return it if it doesn’t work for me?
Yes—ZenSupply offers a hassle-free return policy. If the product isn’t the right fit, reach out to our support team for a return authorization or setup a return by following our return instructions.
Does the Rack-A-Tiers 52491 come with a warranty?
Absolutely. The Rack-A-Tiers 52491 is backed by a manufacturer’s warranty. For full warranty terms, check the product documentation or Contact Us.
How do I get technical support or installation help for the Rack-A-Tiers 52491?
You can call, text, or email our expert support team for fast answers. We’re here to help with product selection, installation tips, and troubleshooting. Contact Us
Why buy the Rack-A-Tiers 52491 from ZenSupply?
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