20 October 2015
20 October 2015
ABB has chosen Solvay Engineering Plastics’ Technyl One, a polyamide (PA) resin designed to address major challenges in electrical equipment for energy management and building automation, such as safety, miniaturisation and increased productivity, for a new contactor application.
Solvay explains that, with its high-flowability and high-temperature matrix, as well as excellent electrical properties and halogen-free fire performance, Technyl One has successfully demonstrated its suitability for demanding applications within the electrical protection segment. Targeted applications include miniature circuit breakers (MCBs), moulded case circuit breaker (MCCB) and contactor parts requiring high amperage and thermal resistance performance.
“The ease of processing of this Technyl One J 60X1 V30, combined with its high functionality, has been a determining factor for ABB during the development phase of our new contactor application. We observed during the electrical overload test, that the material exhibited a high retention of surface properties,” states Jacques Dumoux, ABB Plastic Material Manager (Low Tension). “For short durations, during this critical test, the connections of the new contactors are exposed to significant overloads - up to ten times the normal amperage which generates very high temperatures, to which the surrounding plastic parts must resist.”
Dumoux added, “Due to its unique characteristics, Technyl One withstood creep and softening behaviour throughout this stringent analysis. Previously, only materials such as crosslinked polyamide, polyphtalamide or thermosets passed these tests.”
Continuous product miniaturisation together with an increasing functionality is a constant challenge for the E&E industry. “Further, in the last decade the EU directives RoHS and REACH (SVHC) have had a significant impact on flame retardant technologies. These directives impacted a global market shift towards halogen-free plastics for the E&E industry,” says Dr. James Mitchell, Global EE Market Director at Solvay Engineering Plastics.
“However, specifically for glass fibre filled polyamide and PBT, the adoption of the most efficient halogen-free flame retardant technology has also been associated with drawbacks in terms of physical properties and processing issues like tool corrosion. The superior rheological behaviour of TechnylOne helps reduce the level of corrosive degradation during processing, which is beneficial to the tooling equipment as well as process and product consistency overall, thereby addressing both safety demands and meeting OEMs economic and processing needs,” Dr. Mitchell added.
Solvay Engineering Plastics says its Technyl One J 60X1 V30 grade is a halogen-free flame-retardant material that provides a UL94 V0 rating at only 0.4 mm of wall thickness as well as unmatched thermal ageing properties (150°C electrical RTI – Relative Thermal Index) and a high comparative tracking index (CTI 0 for 600 volts and higher).
In addition to a fully compliant yellow card, it claims that Technyl One J 60X1 V30 also fulfills the new European standard EN 45545-2 that will come into force by 2016. This material offers the highest level of low-smoke performance being classified HL3 under R22 and R23. The current offering includes as stand natural, grey and black grades. Substantial know-how has been built around laser marking and formulated grades are available for customer specific UV/YAG laser system requirements.
Photo provided by Solvay
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