ABB Surge arrester

The ABB Entrelec OVRT2-T31 N20 275PQS is a surge protection device designed for residential and DIY applications, providing reliable protection against voltage spikes and transient overvoltages. This device features a compact design with dimensions of approximately 90 mm x 70 mm x 60 mm and a weight of about 150 g, allowing for installation in electrical distribution cabinets and enclosures. It offers a maximum discharge current of 20 kA and a nominal voltage of 275 V AC with a response time of less than 25 nanoseconds for effective protection of connected devices. The device includes a thermal disconnect switch and visual status indicators to show operational status, with a replaceable module design that simplifies maintenance. Made from flame-retardant materials rated for temperatures up to 40 °C, it meets international safety standards for electrical installations. The surge protection is compatible with single-phase power systems and is intended for use in environments where sensitive electronic devices require protection from electrical disturbances. Its neutral connection design ensures proper grounding and enhances safety in residential wiring applications. Installation requires professional electrical knowledge and adherence to local electrical regulations for optimal performance and safety. The product represents a successor model in the ABB surge protection series, incorporating updated technology for improved reliability in home electrical systems.