Model Number: BY18-20-#7322 Brand Name: Selong Key Specifications/Special Features: Designed taking into account need for installation andmaintenance, structure adapts to 2 + 1 function based on width of18mm, in order to installation and constructionEquipment to out of device failure, adapts to technology to outfrom heatWhen failure of surge protector deterioration of breakdown dueto overheating, it will automatically isolate from power line,reliable and effective to avoid accidentDisplay information, when surge protection device is in normaloperation, transparent window is shown in green, it is failedtransparent window shown in redShould be replace module block when it is shown in redtimely

Internal settle signaling alarm contacts, it can be normallyopen or normally closed, install remote alarm contacts, in order tofacilitate remote monitoring

Charged pluggable, module failure can be replaced