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Labels for Safety, Visuals and Facility ID Desktop Printers
Labels for Product, Wire and Lab ID Benchtop Printers
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Ex: M210, 99048, SDPL-RED-38ST-KD6
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Safety and Facility ID Desktop Printers
Product, Wire and Lab ID Benchtop Printers
Barcode Scanner and Printer Kits
Barcode Scanner and Printer Kits
PaintStripe Floor Marking Stencils
Valve Lockouts & Hose Lockouts
Group Lock Boxes & Permit Control
Brady Safety Lockout Tagout Services
- Confined Space Signs
- Construction Site Signs
- Electrical and Arc Flash Signs
- First Aid Signs
- Forklift and Warehouse Safety Signs
- Lockout Tagout Signs
- Machine Operation Signs
- Maintenance Signs
- Marine and IMO Signs
- Personal Protection (PPE) Signs
- Radiation and Laser Signs
- Safety Awareness and Compliance Signs
- Slip, Trip and Floor Obstacle Hazard Signs
- Blank Pipe Markers
- IIAR Ammonia Pipe Markers and Components
- Pipe Markers for Acids and Bases
- Pipe Markers for Air and Ducts
- Pipe Markers for Fire Systems
- Pipe Markers for Gases
- Pipe Markers for Maintenance and Operation
- Pipe Markers for Oil
- Pipe Markers for Other Liquids
- Pipe Markers for Steam
- Pipe Markers for Water
Pipe Marker Accessories & Mounting Brackets
Maintenance and Production Tags
Calculators and Assessment Tools
Product Finders and Data Sheets
- Confined Space Compliance
- NFPA 704 Diamond Guide
- GHS Hazard Statements
- GHS Label Requirements
- GHS Precautionary Statements
- GHS Signal Words
- Proposition 65 FAQ
- What is OSHA Compliance?
- Top 10 OSHA Violations
- GHS Secondary Container Labeling
- Lockout Tagout Procedures Audit
- OSHA vs. ANSI
- DOT Reflective Tape Requirements
- RoHS Compliance Guide
- WEEE Compliance Guide
- View All
How Do I Select a Marker Size?
Wire Gauge Chart
Brady offers a variety of marker sizes for your wire marking needs. Please view the charts listed below to assist you in choosing the minimum recommended label height for your specific type of wire or cable
that you are identifying.
Type THW Wire O.D.
| Size AWG. |
O.D. mm (inch) |
Circumference mm (inch) |
Minimum Recommended Label Height mm (inch) |
| 18 | 2.74 (0.108) | 8.64 (0.34) | 12.70 (0.500) |
| 16 | 3.00 (0.118) | 9.42 (0.37) | 12.70 (0.500) |
| 14 | 4.11 (0.162) | 12.91 (0.51) | 19.05 (0.750) |
| 12 | 4.55 (0.179) | 14.29 (0.56) | 25.40 (1.000) |
| 10 | 5.05 (0.199) | 15.86 (0.63) | 25.40 (1.000) |
| 8 | 7.01 (0.276) | 22.01 (0.87) | 38.10 (1.500) |
| 6 | 8.20 (0.323) | 25.75 (1.02) | 38.10 (1.500) |
| 4 | 9.45 (0.372) | 29.67 (1.17) | 44.45 (1.750) |
| 3 | 10.19 (0.401) | 32.00 (1.26) | 50.80 (2.000) |
| 2 | 11.00 (0.433) | 34.54 (1.36) | 50.80 (2.000) |
| 1 | 12.90 (0.508) | 40.51 (1.60) | 63.50 (2.500) |
| 1/0 | 13.95 (0.549) | 43.80 (1.72) | 63.50 (2.500) |
| 2/0 | 15.11 (0.595) | 47.45 (1.87) | 76.20 (3.000) |
| 3/0 | 16.43 (0.647) | 51.59 (2.03) | 76.20 (3.000) |
| 4/0 | 17.91 (0.705) | 56.24 (2.21) | 88.90 (3.500) |
Type THHN Wire O.D.
| Size AWG. |
O.D. mm (inch) |
Circumference mm (inch) |
Label Height mm (inch) |
| 18 | 2.26 (0.089) | 7.10 (0.28) | 12.70 (0.500) |
| 16 | 2.54 (0.100) | 7.98 (0.31) | 12.70 (0.500) |
| 14 | 2.67 (0.105) | 8.38 (0.33) | 12.70 (0.500) |
| 12 | 3.10 (0.122) | 9.73 (0.38) | 12.70 (0.500) |
| 10 | 3.89 (0.153) | 12.21 (0.48) | 19.05 (0.750) |
| 8 | 5.54 (0.218) | 17.40 (0.68) | 25.40 (1.000) |
| 6 | 6.53 (0.257) | 20.50 (0.81) | 31.75 (1.250) |
| 4 | 8.33 (0.328) | 26.16 (1.03) | 38.10 (1.500) |
| 3 | 9.04 (0.356) | 28.39 (1.12) | 44.45 (1.750) |
| 2 | 9.86 (0.388) | 30.96 (1.22) | 50.80 (2.000) |
| 1 | 11.43 (0.450) | 35.89 (1.41) | 57.15 (2.250) |
| 1/0 | 12.47 (0.491) | 36.16 (1.54) | 63.50 (2.500) |
| 2/0 | 13.64 (0.537) | 42.83 (1.69) | 63.50 (2.500) |
| 3/0 | 14.94 (0.588) | 46.91 (1.85) | 69.85 (2.750) |
| 4/0 | 16.41 (0.646) | 51.53 (2.03) | 76.20 (3.000) |
Type PVC Wire O.D.
| Size AWG. |
O.D. mm (inch) |
Circumference mm (inch) |
Minimum Recommended Label Height mm (inch) |
| 22 | 1.57 (0.062) | 4.93 (0.19) | 7.62 (0.300) |
| 20 | 1.75 (0.069) | 5.50 (0.22) | 7.62 (0.300) |
| 18 | 2.00 (0.079) | 6.28 (0.25) | 12.70 (0.500) |
| 16 | 2.34 (0.092) | 7.53 (0.29) | 12.70 (0.500) |
| 14 | 3.50 (0.138) | 10.99 (0.43) | 19.05 (0.750) |
| 12 | 4.01 (0.158) | 12.59 (0.50) | 19.05 (0.750) |
| 10 | 4.65 (0.183) | 14.60 (0.57) | 25.40 (1.000) |
| 8 | 6.35 (0.250) | 19.94 (0.79) | 31.75 (1.250) |
Type Teflon Wire O.D.
| Size AWG. |
O.D. mm (inch) |
Circumference mm (inch) |
Minimum Recommended Label Height mm (inch) |
| 22 | 1.52 (0.060) | 4.77 (0.19) | 7.62 (0.300) |
| 20 | 1.73 (0.068) | 5.43 (0.21) | 7.62 (0.300) |
| 18 | 2.01 (0.079) | 6.31 (0.25) | 12.70 (0.500) |
| 16 | 2.26 (0.089) | 7.10 (0.28) | 12.70 (0.500) |