High Temp Wire: How Hot Can it Get?

We all know that high temp wire is HOT, but how hot can it really get? First, let’s look at a few of the different types of high temp wire such as, MGT, TGGT and SRML. While all of these sound like a confusing group of letters, they are actually different types of wire that each have their own temperature rating. Below is a breakdown for each wire and their unique temperature rating.

MGT:

This wire is insulated with a glass reinforced mica tape and fiberglass braid. The construction allows this wire to withstand temperatures up to 450 degrees (UL) Celsius. It is a great product for commercial and household ovens.

TGGT:

This wire uses a nickel coated copper conductor with PTFE tapes and a fiberglass braided jacket.  It is rated for a maximum temperature of 250 degrees Celsius. TGGT is a great option for commercial or industrial heating equipment.

SRML:

Also called SFF-2, SRML stands for Silicone Rubber Motor Lead Wire. This wire should not exceed 150 degrees Celsius. For something with a similar make but higher temperature rating, SF-2 uses a coarse strand construction to withstand temperatures up to 200 degrees Celsius.  These products are used for lead wires on electrical equipment in various high temperature environments.

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