3M 7000031501 Wire Marker Write-on Dispenser

Product Description

The 3M 7000031501 is a write-on wire marker dispenser designed for fast, legible wire identification in electrical installations. The kit includes a tape roll of 50 labels and an SMP marking pen, giving electricians and low-voltage technicians everything needed to mark conductors without a label printer. Each marker measures 0.75 x 1.375 inches with a dedicated write-on area of 0.75 x 0.312 inches. The dispenser format keeps labels organized and reduces waste on the job. This is a regular-sized dispenser intended for hand-labeling wire and cable in the field or in a panel shop environment.

This dispenser is suited for use on wire and cable with an outer diameter ranging from 0.09 to 0.31 inches, covering a wide range of typical control, low-voltage, and branch-circuit conductors. It is commonly used in residential and commercial electrical work, panel wiring, machine wiring, and any application where clear wire identification is required. The write-on format is practical when pre-printed labels are not available or when custom designations are needed on the fly.

Key Features

• Includes 50 write-on labels per roll and one SMP marking pen
• Fits wire outer diameters from 0.09 to 0.31 inches
• Write-on area of 0.75 x 0.312 inches provides clear space for circuit identification
• Dispenser format allows controlled, one-at-a-time label dispensing
• No label printer required — suitable for field use

Compatibility

Designed for use on wire and cable with an outer diameter of 0.09 to 0.31 inches, typical of control wiring, low-voltage conductors, and smaller branch-circuit cables found in residential and commercial electrical systems.

Installation Notes

Wire markers should be applied by a qualified electrician or low-voltage technician as part of panel labeling or circuit identification work. Ensure the wire surface is clean and dry before applying the label for proper adhesion. Follow applicable NEC requirements for conductor identification and marking. Do not apply labels to energized conductors — de-energize and lock out the circuit before working in the panel.

Technical Specifications

• Marker Size: 0.75 x 1.375 inches
• Write-On Area: 0.75 x 0.312 inches
• Compatible Wire OD: 0.09 to 0.31 inches
• Labels per Roll: 50
• Weight: 0.31 pounds
• Unit of Measure: Each
• Minimum Order Quantity: 10
• UPC: 00054007119548

Standard Information

• Brand: 3M
• Manufacturer Part Number: 7000031501