“Tests of devices with built-in fuseholders have shown that their installation position has a major influence on heat generation and fire development,” said the firm. “The fuseholder standard IEC 60127-6 has been revised with the aim of improving fire protection. Accordingly, since October 2017, Edition 2.0 has required all fuseholders placed on the market to meet these new requirements. The requirements are based on the already-valid household appliance standard IEC 60335-1, which requires increased resistance to glow wire for unattended electrical appliances.”
Schurter has set up a web page that discusses the changes and offers compliant replacements.