SEPM’s Electronic Wires tables pair each construction with a UL style number, sometimes a CSA type, a marketing name, and a temperature/voltage rating. For global electronics programmes, those codes are a shared language between design, compliance, and purchasing.

What a style number means

A UL AWM style defines a construction class — insulation type, temperature rating, voltage rating, and often flame test references. It is not a unique part number. Two vendors can claim the same style yet differ in conductor stranding, print legend, or available colours.

CSA types play a similar role for Canadian recognition. Some rows on SEPM’s archive list both UL and CSA identifiers; others list UL only. Procurement should verify current file numbers when products ship into North America or must follow North American equipment standards.

How to avoid common mistakes

Do not stop at the style. Call out AWG, stranding, shield, colour, and length on the drawing.
Do not mix AC and DC voltage marketing. High-voltage rows may list both; creepage rules differ.
Do not assume stock. Style tables describe capability, not warehouse inventory.
Align flame and substance rules with the end-equipment standard and customer blacklist.

SEPM examples (illustrative)

Archived heat-resistant PVC rows reference familiar styles such as AWM 1007, 1015, and 1061, alongside piercing-connector wires and SUMIFLEX flexible constructions. IRRAX tables add dozens more style numbers across V2, HF, B, and HV families. Use them as a map for conversations with SEPM sales, not as a drop-in substitute for a controlled approved vendor list.

Process tip

Maintain a controlled spreadsheet linking OEM drawing → SEPM part → UL style → latest datasheet revision date. That discipline prevents silent substitutions when plants refresh constructions while keeping the same style classification.

More on irradiated constructions: IRRAX cross-linking guide.