⚫ Type “J” Thermocouple Grade Wire

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$1.20
QuantityPrice
25 – 99$1.20
100 – 249$1.08
250 – 499$0.96
500 – 999$0.84
1000 +$0.72
SKU: TIPWRJ006

Iron–Constantan Thermocouple Wire with High-Temperature Fiberglass Insulation


Quick Specs

🧵 Wire Type: Type “J” — Iron (+) / Constantan (–)
📏 Gauge: 20 AWG (available Solid or Stranded)
🧪 Insulation: Fiberglass jacket
🔥 Temperature Rating: Up to 900 °F / 482 °C
🎯 Accuracy: ± 2 °C / ± 4 °F (per ASTM standard)
📡 Max Signal Distance: 280 ft without amplification
⚙️ Polarity: (+) White / (–) Red (White wire is magnetic)
🔩 Construction: High-temperature, abrasion-resistant insulation
🏷️ TIPTEMP Part Number: IWJ-20-GG


📦 Browse the related products below to find compatible connectors, plugs, and wire welders that integrate seamlessly with this thermocouple wire.

🛒 Add to Cart Now or 📞 Call 1-800-TIP-TEMP for expert guidance.

IN STOCK

Current Stock: 480

Notable Features

Key Features

✅ Type “J” thermocouple wire for general-purpose temperature sensing
✅ Fiberglass insulation withstands up to 900 °F for industrial use
✅ Reliable signal transmission up to 280 ft without amplification
✅ Color-coded to ANSI Type “J” standard (White / Red)
✅ Suitable for probe assembly, extension, or repair work
✅ Available in both solid and stranded conductor formats

Stainless Steel Over Braid (SSOB) is used in applications that require mechanical and abrasion protection. SSOB is tough and flexible.

J+ Iron

- Constantan
Positive = White

Negative = Red
Wire InsulationMax TempGaugeWire TypeSignal
Dist.
Product Code

GLASS BRAID
on each conductor

GLASS BRAID
overall

900 F
482 C
20solid280 ftIWJ-20-GG
20stranded280 ftIWJ-20s-GG
24solid110 ftIWJ-24-GG
24stranded110 ftIWJ-24s-GG
28solid44 ftIWJ-28-GG
30solid27 ftIWJ-30-GG
36solid7 ftIWJ-36-GG
STAINLESS STEEL
OVERBRAID
20solid280 ftIWJ-20-GG-SSOB
20stranded280 ftIWJ-20s-GG-SSOB
24solid110 ftIWJ-24-GG-SSOB
24stranded110 ftIWJ-24s-GG-SSOB

TEFLON
on each conductor

TEFLON
overall

500 F
260 C
20solid280 ftIWJ-20-TT
20stranded280 ftIWJ-20s-TT
22stranded200 ftIWJ-22s-TT
24stranded110 ftIWJ-24s-TT
24solid110 ftIWJ-24-TT
30solid27 ftIWJ-30-TT
36solid7 ftIWJ-36-TT
40solid8 inIWJ-40-TT
STAINLESS STEEL
OVERBRAID
20solid280 ftIWJ-20-TT-SSOB
20stranded280 ftIWJ-20s-TT-SSOB
24solid110 ftIWJ-24-TT-SSOB
24stranded110 ftIWJ-24s-TT-SSOB


*"Signal Dist." relates to how far thermocouple signal travels without amplification.

Specifications:
  • Part Number IWJ-20-GG / TIPWRJ006
  • Type "J" Wire, Fiberglass Jacket, 20 Ga. Stranded
  • Fiberglass is rated at max 900°F / 482°C 
  • Accuracy ±2°C / 4°F per ASTM standards. 
  • Max Distance Signal will travel is 280 Ft. without amplification.
  • (White) Iron + / (Red) Constantan – 
  • Type "J" thermocouple wire SOLID 20 Ga.
  • Cut to your required length
  • Expert Technical Support

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