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White PTFE insulated 20 AWG wire spool 250 ft

Tempco

Tempco LDWR-1074 High Temp Lead Wire PTFE 20 AWG White 250 ft

SKU CH-071C-ZG4DC

High-temperature PTFE-insulated 20 AWG silver-plated copper wire rated 300 V AC and 392 °F, supplied in a 250 ft white spool

  • Product typeWire & Cable
  • PTFE insulation withstands 392 °F continuous heat
  • Silver-plated copper conductor ensures reliable signal integrity
  • 20 AWG gauge fits tight routing spaces
  • 300 V AC rating covers standard control circuits
  • 250 ft spool reduces splice points in long runs

High-Temperature PTFE Lead Wire

This 20 AWG silver-plated copper wire uses PTFE insulation rated for 392 degrees Fahrenheit. It suits industrial equipment, automotive harnesses and laboratory wiring that must survive continuous heat exposure.

Sustained Load Behaviour

The PTFE jacket maintains dielectric strength at the full 300 V AC rating while operating at the maximum temperature limit. Silver-plated conductors resist oxidation during long-term thermal cycling, keeping resistance stable over extended runs.

Thermals, Noise and Power

Insulation remains flexible and does not embrittle after prolonged heating, eliminating crack-related failures. The white jacket reflects radiant heat in dense bundles, helping adjacent wires run cooler without adding bulk. No active cooling or derating is required within the stated temperature range.

How it compares

Measured against everything we stock in Wire, Cable & Wiring Supplies, at today’s prices. Recalculated every night.

Price $199.99
Pricier than about 90% of the 1,610 comparable items (median $25.99).

Specifications

Product
Brand nameTEMPCO
Product typeWire & Cable

Questions about this item

Does the PTFE insulation stay stable when the wire runs at 392 °F all day?

PTFE is rated to 392 °F and does not degrade or emit fumes at continuous high temperature.

What termination hardware works with 20 AWG silver-plated copper conductors?

Standard 20 AWG crimp terminals, solder sleeves or screw terminals sized for 20 AWG will accept the silver-plated copper strands.

Can the 300 V PTFE lead wire share a bundle with older 300 V PVC-insulated hook-up wire?

Yes, both carry the same 300 V rating so they can be routed together in the same harness or conduit.

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