16. April 2024

Glow Wire Tests for Safety Testing Household Appliances

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glow-wire testing machine in the lab

Würth Elektronik has connectors independently tested for fire resistance

Waldenburg (Germany), April 16, 2024 – Würth Elektronik has a series of connectors checked by Groupe SGS France. The plastic insulation materials of electromechanical components are subjected to glow wire tests to determine their fire resistance. The test facilitates IEC 60335-1 certification for customers using these connectors in electrical appliances for domestic use.

Manufacturers of consumer products must ensure that their devices do not contribute to spreading fire. The requirement from the standard: The product shall withstand a glow wire heated to 850°C and shall not produce a flame that lasts longer than two seconds when exposed to a 750°C glow wire. The tests are GWIT (Glow Wire Ignition Temperature – IEC 60695-2-13) to determine the ignition temperature using a test plate, GWFI (Glow Wire Flammability Index – IEC 60695-2-12) to determine the flame behavior on the test specimen and GWT (Glow Wire Temperature – IEC 60695-2-11) to determine the ignition temperature on the finished part.

The following Würth Elektronik components are subjected to these procedures: THT mountable connectors with 5.08 and 7.62 mm pitch (WR-FAST), screwless terminal blocks (WR-TBL3), and the wire-to-board connector series WR-MPC3, WR-MPC4 and WR-MPC5.


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