Polyester Electrical Tape, 25 mm × 30 m — 0.05 mm, UL130 (No.631S)

General-purpose polyester film electrical tape for coil wrapping, transformer insulation and harness bundling. UL-rated 130°C and UL746A CTI ≥ 600 V, with a firm enough adhesive to stop the tape end lifting on wound coils.

Questions

What is No.631S used for?

General-purpose polyester film electrical tape for coil wrapping, transformer insulation and harness bundling.

What temperature is No.631S rated for?

It is UL rated for 130°C.

What width and length does one roll have?

One roll is 25 mm wide and 30 m long.

Typical values measured according to JIS or the manufacturer's test methods. Reference values, not guaranteed values.

Electrical insulation adhesive: what the acrylic layer does

This is a two-part product. The 0.05 mm polyester film sets the electrical side — a UL130 temperature class and 6.0 kV breakdown — while the acrylic adhesive decides whether the wrap stays put through vibration and mild heat. Acrylic is the right choice below 130 °C; above that, the silicone-adhesive tapes in the same range hold better.

Compare all four temperature classes in electrical insulation tape. If the drawing calls for a rigid plastic sheet instead of a tape, that is a different material and we do not stock it — the collection page explains the difference.