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Value Brand

Value Brand Test Lead Wire 18 AWG 50 ft Red

SKU CH-87QR-58HR2

18 AWG red test lead wire on a 50 ft roll with silicone insulation rated for 33 V AC, 70 V DC and 20 A at 302 °F

  • Product typeDigital Multimeters
  • Ready for low-voltage testing with 18 AWG silicone-insulated wire
  • Flexible 65-strand tinned copper conductor eases routing in tight spaces
  • 50 ft roll supplies ample length for bench or field work
  • Rated 33 V AC and 70 V DC for safe multimeter connections
  • Withstands up to 302 °F for demanding environments

Test Lead Wire 18 AWG 50 ft Red

This 18 AWG test lead wire comes in a 50 ft roll with red silicone insulation. It uses a 65 AWG/36 tinned copper conductor and has a nominal outside diameter of .144 in. The wire is rated for a maximum of 33 V AC or 70 V DC and can carry up to 20 A. It suits technicians building custom test leads for low-voltage measurement tasks.

Silicone insulation rated to 302 Degrees F

The silicone insulation withstands a maximum operating temperature of 302 Degrees F, allowing the wire to remain flexible in hot engine bays or near heating elements. Its .144 in diameter fits standard banana plug and alligator clip terminals without bulky strain relief. The 50 ft length lets you cut exact lengths for bench or field use, reducing excess cable clutter.

Replaces damaged or stiff PVC test leads

This wire replaces cracked, hardened or undersized original leads on digital multimeters and clamp meters. The upgrade is worth it when existing insulation has melted, cracked in cold weather or when the original wire gauge limits current to below 20 A. It is not for mains-voltage work above 70 V DC or 33 V AC, nor for permanent building wiring.

How it compares

Measured against everything we stock in Meters, Testers & Measuring Tools, at today’s prices. Recalculated every night.

Price $25.99
Cheaper than about 70% of the 3,030 comparable items (median $54.99).

Specifications

Product
Brand nameZORO SELECT
Product typeDigital Multimeters

Questions about this item

How long can I run 20 A through this 18 AWG wire before it overheats?

The wire is rated for 20 A maximum current and 302 °F maximum operating temperature; sustained use at full load will reach that thermal limit.

How hot does the 18 AWG silicone insulation get when carrying 20 A continuously?

At the rated 20 A the conductor can reach the maximum operating temperature of 302 °F, so the silicone insulation will become very hot to the touch.

What connector or terminal do I need to attach to this 18 AWG test lead wire?

The wire uses 65 strands of 36 AWG tinned copper, 0.144 in outside diameter, and fits standard 18 AWG crimp terminals or banana plugs.

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