Polyamide compositions

An article of manufacture for an electronic circuit, the article comprising a flame-retardant polyamide composition comprising:

• A) 30% to 80% by weight of nylon-6 or nylon 6,6, wherein the nylon-6 or the nylon-6,6 has a viscosity number of 80 to 180 ml/g, determined in a 0.5% by weight solution in 96% by weight sulphuric acid at 25° C. to ISO 307,
• B) 15% to 50% by weight of non-fibrous and non-foamed ground glass obtained by grinding glass with a mill, wherein the ground glass has a length of 0.01 to 0.5 mm, a d90 of 5 to 250 μm, a d10 of 0.3 to 10 μm, and a d50 of 3 to 50 μm,
• C) 4% to 6% by weight of chopped long glass fibres having an original length of 1 to 50 mm,
• D) 1% to 20% by weight of melamine cyanurate,
• G) 0.01% to 60% by weight of ehtylenebisstearylamide, and
• K) 0.01% to 20% by weight of 3,3′-bis(3,5-di-tert-butyl-4-hydroxyphenyl)-N,N′-hexamethylenedipropionamide.
• with the proviso that the sum total of all the percentages by weight is 100%.

A circuit breaker component comprising a flame-retardant polyamide composition comprising:

• A) 5% to 92.9% by weight of nylon-6, nylon-6,6 or copolyamides based on nylon 6 and/or nylon 66;
• B) 5% to <42% by weight of non-fibrous and non-foamed ground glass of irregular shapes with broken edges and having a d90 of 5 to 250 μm, a length of 0.01 to 0.5 mm, and an aspect ratio of length to diameter (L/D ratio) of less than 5;
• C) 4% to 6% by weight of chopped long glass fibres having a fibre diameter of 7 to 18 μm, and an original length of 1 to 50 mm;
• and
• D) 0.1% to 40% by weight of melamine cyanurate.